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Homonyms

IRMNG homonym list - genus level - Initial letter = "R" (903)

Please note, this is a provisional homonyms list from IRMNG on 2019-05-21, and is subject to change. It may include nomina nuda, rejected and otherwise non-current names, plus some published misspellings, in addition to homonyms that have been validly published. A small proportion of duplicate entries awaiting rationalisation may also be included.

Click on any genus name for additional details, as currently available.

Rabdiodon
     Rabdiodon Ameghino, 1882 † accepted as Rabdiodon Ameghino, 1882 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)
     Rabdiodon Ameghino, 1889 † accepted as Rabdiodon Ameghino, 1889 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)

Rabdoglaux
 Rabdoglaux Bonaparte, 1854 accepted as Ninox Hodgson, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Strigiformes (Order) > Strigidae (Family)
     Rabdoglaux Bonaparte, 1854 accepted as Ninox Hodgson, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Strigiformes (Order) > Strigidae (Family)

Rabdosia
 Rabdosia Hübner, 1820 accepted as Rabdosia Hübner, 1820 (Misspelling) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Rabdosia (Blume) Hasskarl, 1842 accepted as Isodon (Schrader ex Bentham) Spach, 1840 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)

Rabdotus
     Rabdotus Albers, 1850 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Orthalicidae (Family)
     Rabdotus K.B. Presl in Sternberg, 1838 † accepted as Rabdotus K.B. Presl in Sternberg, 1838 † (unassessed) · Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)

Rabenhorstia
     Rabenhorstia E.M. Fries, 1849 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Diaporthales (Order) > Diaporthales incertae sedis (Family)
 Rabenhorstia H.G.L. Reichenbach, 1841 accepted as Berzelia A.T. Brongniart, 1826 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Bruniales (Order) > Bruniaceae (Family)

Rabula
     Rabula Péringuey, 1902 accepted as Rabula Péringuey, 1902 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Rabula Jordan & Davis, 1891 accepted as Gymnothorax Bloch, 1795 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Anguilliformes (Order) > Muraenidae (Family)

Rachelia
     Rachelia Mineo, 2004 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Scelionidae (Family)
     Rachelia Hemming, 1964 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Hesperiidae (Family)
     Rachelia J.M. Ward & I. Breitwieser, 1997 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Rachia
     Rachia Moore in Hewitson & Moore, 1879 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Notodontidae (Family)
     Rachia Klotzsch, 1854 accepted as Rachia Klotzsch, 1854 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Cucurbitales (Order) > Begoniaceae (Family)

Rachianectes
 Rachianectes Cope, 1869 accepted as Eschrichtius Gray, 1864 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Cetacea (Order) > Eschrichtiidae (Family)
 Rachianectes Trouessart, 1898 accepted as Eschrichtius Gray, 1864 (misspelling) · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Cetacea (Order) > Eschrichtiidae (Family)

Rachicerus
     Rachicerus Walker, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Xylophagidae (Family)
     Rachicerus Walker, 1848 accepted as Rachicerus Walker, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Xylophagidae (Family)

Rachinotus
     Rachinotus Capener, 1968 accepted as Rachinotus Capener, 1968 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Rachinotus accepted as Rhachinotus Cantor, 1849 (misspelling) · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Myliobatiformes (Order) > Dasyatidae (Family)

Rachiosoma
     Rachiosoma Pomel, 1883 † · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Temnopleuroida (Order) > Glyphocyphidae (Family)
 Rachiosoma Woodward, 1871 † accepted as Rhachiosoma Woodward, 1871 † · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Macropipidae (Family)

Rachis
     Rachis Albers, 1850 accepted as Rachis Albers, 1850 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Enidae (Family)
 Rachis Saussure, 1859 accepted as Rhachodesmus Cook, 1896 · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Polydesmida (Order) > Rhachodesmidae (Family)

Rachites
     Rachites Gray, 1845 accepted as Rachites Gray, 1845 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Scincidae (Family)
     Rachites Cocteau, 1837 accepted as Tiliqua Gray, 1825 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Scincidae (Family)

Rachiteuthis
     Rachiteuthis Novati, 2002 † accepted as Rachiteuthis Novati, 2002 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Cephalopoda (awaiting allocation) (Order) > Cephalopoda (awaiting allocation) (Family)
     Rachiteuthis Fuchs, 2006 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Teuthida (Order) > Palaeololiginidae (Family)

Raciborskia
 Raciborskia Woloszynska, 1918 accepted as Dinococcus Fott, 1960 · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Phytodiniales (Order) > Phytodiniaceae (Family)
 Raciborskia M. Koczwara, 1928 accepted as Romeria M. Koczwara in Geitler, 1932 · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Synechococcales (Order) > Romeriaceae (Family)
 Raciborskia Berlese, 1888 accepted as Comatricha Preuss, 1851 · Protozoa (Kingdom) > Amoebozoa (Phylum) > Myxogastrea (Class) > Fuscisporida (Order) > Stemonitidae (Family)
     Raciborskia A.N. Berlese in P.A. Saccardo, 1888 accepted as Raciborskia A.N. Berlese in P.A. Saccardo, 1888 (unassessed) · Protozoa (Kingdom) > Amoebozoa (Phylum) > Myxogastrea (Class) > Fuscisporida (Order) > Stemonitidae (Family)

Raciborskiella
     Raciborskiella S. Wislouch, 1924 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlamydomonadales (Order) > Raciborskiellaceae (Family)
 Raciborskiella Spegazzini, 1919 accepted as Trichopeltella F. von Höhnel, 1910 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Microthyriales (Order) > Microthyriaceae (Family)
 Raciborskiella F. von Höhnel, 1909 accepted as Strigula E.M. Fries, 1823 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Dothideomycetidae incertae sedis (Order) > Strigulaceae (Family)

Racodium
     Racodium E.M. Fries, 1829 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Capnodiales (Order) > Capnodiales incertae sedis (Family)
 Racodium C.H. Persoon, 1794 accepted as Rhinocladiella Nannfeldt in E. Melin & Nannfeldt, 1934 · Fungi (Kingdom) > Ascomycota (Phylum) > Eurotiomycetes (Class) > Chaetothyriales (Order) > Herpotrichiellaceae (Family)
     Racodium E.M.Fries, 1829 · Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > Fungi (awaiting allocation) (Class) > Fungi (awaiting allocation) (Order) > Fungi incertae sedis (Family)

Racovitzaia
 Racovitzaia Tucolesco, 1962 accepted as Racovitzaiella Aescht, 2001 † · Chromista (Kingdom) > Ciliophora (Phylum) > Phyllopharyngea (Class) > (Order) > Suctoria (awaiting allocation) (Family)
 Racovitzaia Dollo, 1904 accepted as Racovitzia Dollo, 1900 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Bathydraconidae (Family)

Racovitziella
     Racovitziella É. De Wildeman, 1900 accepted as Racovitziella É. De Wildeman, 1900 (unassessed) · Plantae (Kingdom) > Algae (awaiting allocation) (Phylum) > Algae (awaiting allocation) (Class) > Algae (awaiting allocation) (Order) > Algae (awaiting allocation) (Family)
     Racovitziella P. Döbbeler & J. Poelt in P. Döbbeler, 1978 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Dothideomycetes incertae sedis (Order) > Dothideomycetes incertae sedis (Family)

Radaisiella
 Radaisiella Bainier, 1910 accepted as Botryosporium Corda in J. Sturm, 1831 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
 Radaisiella L. Geitler, 1925 accepted as Cyanoderma Weber-van Bosse, 1887 · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Pleurocapsales (Order) > Pleurocapsaceae (Family)

Radama
     Radama Raffray, 1883 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Radama Fairmaire, 1895 accepted as Radama Fairmaire, 1895 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Raddia
     Raddia Bertoloni, 1819 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Raddia Mazziari, 1834 accepted as Crypsis W. Aiton, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Raddia A.P. de Candolle, 1824 accepted as Raddisia P. Leandro de Sacramento, 1821 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Celastrales (Order) > Celastraceae (Family)

Radema
     Radema McLachlan, 1872 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Apataniidae (Family)
     Radema Hagen, 1864 accepted as Radema McLachlan, 1872 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Apataniidae (Family)

Rademachia
     Rademachia Thunberg, 1776 accepted as Rademachia Thunberg, 1776 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Moraceae (Family)
 Rademachia Thunberg, 1776 accepted as Rademachia Thunberg, 1776 (Misspelling) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Moraceae (Family)

Radfordiella
     Radfordiella Fonseca, 1948 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Macronyssidae (Family)
 Radfordiella Kolebinova & Vercammen-Grandjean, 1978 accepted as Schoengastiella Hirst, 1915 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Walchiidae (Family)

Radforthia
     Radforthia V. Mosbrugger & D. Vogellehner, 1986 † accepted as Radforthia V. Mosbrugger & D. Vogellehner, 1986 † (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Pteridophyta/Pteridospermophyta (unclassified foliage) (Class) > Pteridophyta/Pteridospermophyta (awaiting allocation) (Order) > Pteridophytes/Pteridosperms (awaiting allocation) (Family)
     Radforthia M.R. Winslow, 1962 † accepted as Radforthia M.R. Winslow, 1962 † (unassessed) · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)

Radia
     Radia Hecq, 1976 accepted as Radia Hecq, 1976 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Radia F. Noroña, 1790 accepted as Mimusops Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Sapotaceae (Family)

Radiaspis
     Radiaspis Richter, 1917 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Lichida (Order) > Lichakephalidae (Family)
 Radiaspis Ferris, 1938 accepted as Radionaspis Ferris, 1942 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Diaspididae (Family)

Radiata
 Radiata Nordsieck, 1972 accepted as Pusillina Monterosato, 1884 (Variant spelling of Radiatia) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Rissoidae (Family)
 Radiata Medikus, 1789 accepted as Medicago Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Radiatisporites
 Radiatisporites I.C. Cookson & M.E. Dettmann, 1958 † accepted as · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)
     Radiatisporites R. Potonié & G.O.W. Kremp, 1954 † accepted as Radiatisporites R. Potonié & G.O.W. Kremp, 1954 † (unassessed) · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)

Radicula
 Radicula Moench, 1794 accepted as Rorippa Scopoli, 1760 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)
     Radicula Christiansen, 1958 · Chromista (Kingdom) > Retaria (Phylum) > Monothalamea (Class) > Astrorhizida (Order) > Astrorhizidae (Family)

Radiculites
 Radiculites Zalessky, 1937 † accepted as · Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)
     Radiculites Lignier, 1906 † accepted as Radiculites Lignier, 1906 † (unassessed) · Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)

Radiococcus
     Radiococcus Schmidle, 1902 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Sphaeropleales (Order) > Radiococcaceae (Family)
 Radiococcus accepted as Radicoccus Hambleton, 1946 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pseudococcidae (Family)

Radioconus
     Radioconus Baker, 1927 accepted as Radioconus Baker, 1927 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Charopidae (Family)
     Radioconus Korde, 1984 † · Animalia (Kingdom) > Cnidaria (Phylum) > Hydroconozoa (Class) > Hydroconozoa (awaiting allocation) (Order) > Hydroconozoa (awaiting allocation) (Family)

Radiocycloclypeus
     Radiocycloclypeus Hok, 1932 accepted as Radiocycloclypeus Hok, 1932 (unassessed) · Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Radiocycloclypeus Tan, 1932 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Nummulitidae (Family)

Radiodiscus
     Radiodiscus Pilsbry, 1906 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Charopidae (Family)
     Radiodiscus (Bale) Mills, 1932 accepted as Radiodiscus (Bale) Mills, 1932 (unassessed) · Chromista (Kingdom) > Ochrophyta (Phylum) > Bacillariophyceae (Class) > Bacillariophyceae (awaiting allocation) (Order) > Bacillariophyceae (awaiting allocation) (Family)
 Radiodiscus A. Forti & P. Schulz, 1932 † accepted as Schulziella Hanna & Forti, 1933 † (junior homonym) · Chromista (Kingdom) > Ochrophyta (Phylum) > Bacillariophyceae (Class) > Bacillariophyceae (awaiting allocation) (Order) > Bacillariophyceae (awaiting allocation) (Family)

Radiolus
     Radiolus Wollaston, 1878 accepted as Radiolus Wollaston, 1878 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Oxychilidae (Family)
     Radiolus auctt. † accepted as Radiolus auctt. † (name used to denote fossil echinoid spines of various echinoid groups) · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Echinoidea (awaiting allocation) (Order) > Echinoidea (awaiting allocation) (Family)

Radiosphaera
     Radiosphaera J.W. Snow in Ward & Whipple, 1918 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlamydomonadales (Order) > Chlorococcaceae (Family)
     Radiosphaera Jörgensen in Nordgaard & Jörgensen, 1905 accepted as Radiosphaera Jörgensen in Nordgaard & Jörgensen, 1905 (unassessed) · Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Radiosphaera Reitlinger, 1957 † · Protozoa (Kingdom) > Calcitarcha (Phylum) > Calcitarcha (awaiting allocation) (Class) > Calcitarcha (awaiting allocation) (Order) > Calcitarcha (awaiting allocation) (Family)
 Radiosphaera (A. Pascher) A. Pascher, 1937-1938 accepted as Radiosphaerella P.C. Silva, 1979 · Chromista (Kingdom) > Ochrophyta (Phylum) > Xanthophyceae (Class) > Mischococcales (Order) > Pleurochloridaceae (Family)

Radiosphaerella
     Radiosphaerella P.C. Silva, 1979 · Chromista (Kingdom) > Ochrophyta (Phylum) > Xanthophyceae (Class) > Mischococcales (Order) > Pleurochloridaceae (Family)
     Radiosphaerella Yuferev in Zadorozhnyj & Yuferev, 1984 † accepted as Radiosphaerella Yuferev in Zadorozhnyj & Yuferev, 1984 † (unassessed) · Protozoa (Kingdom) > (Phylum) > (Class) > Sarcomastigota (awaiting allocation) (Order) > Sarcomastigota (awaiting allocation) (Family)

Radix
     Radix Montfort, 1810 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Hygrophila (Order) > Lymnaeidae (Family)
     Radix A. Fritsch, 1908 † accepted as Radix A. Fritsch, 1908 † (unassessed) · Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)

Radsiella
     Radsiella Pilsbry in Tryon & Pilsbry, 1892 · Animalia (Kingdom) > Mollusca (Phylum) > Polyplacophora (Class) > Ischnochitonida (Order) > Ischnochitonidae (Family)
     Radsiella Thiele in Troschel, 1893 accepted as Radsiella Thiele in Troschel, 1893 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Radula
     Radula Gray, 1840 accepted as Radula Gray, 1840 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Radula Gray, 1842 accepted as Radula Gray, 1842 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Radula Dumortier, 1822 · Plantae (Kingdom) > Marchantiophyta (Phylum) > Jungermanniopsida (Class) > Porellales (Order) > Radulaceae (Family)
 Radula Mörch, 1853 accepted as Lima Bruguière, 1797 (invalid: junior homonym of Radula Gray, 1842) · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Limoida (Order) > Limidae (Family)

Radulina
     Radulina Meissner, 1902 accepted as Radulina Meissner, 1902 (unassessed) · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Phidoloporidae (Family)
     Radulina W.R. Buck & B.C. Tan, 1989 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hypnobryales (Order) > Sematophyllaceae (Family)

Rafaelia
     Rafaelia Townsend, 1917 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sarcophagidae (Family)
 Rafaelia Nel, Bechly, Garrouste, Pohl & Escuillié, 2005 † accepted as Rafaeliana Nel, Garrouste, Bechly, Pohl & Escuillié, 2006 † (junior homonym) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Rafaelianidae (Family)

Rafinesquia
     Rafinesquia Nuttall, 1841 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Rafinesquia Rafinesque, 1837 accepted as Hosackia Douglas ex J. Lindley, 1829 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Rafinesquia Rafinesque, 1838 accepted as Jacaranda A.L. Jussieu, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Bignoniaceae (Family)
 Rafinesquia Rafinesque, 1837 accepted as Diodeilis Rafinesque, 1837 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)

Ragionula
     Ragionula Canu & Bassler, 1927 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Romancheinidae (Family)
     Ragionula Canu & Lecointre, 1925 accepted as Ragionula Canu & Bassler, 1927 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Rhamphostomellidae (Family)

Raglius
     Raglius Stål, 1872 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Lygaeidae (Family)
 Raglius Amyot, 1846 accepted as Raglius Stål, 1872 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Lygaeidae (Family)

Ragonotia
     Ragonotia Grote, 1888 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)
 Ragonotia Staudinger, 1900 accepted as Doerriesa Staudinger, 1900 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Rahona
     Rahona Griveaud, 1976 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lymantriidae (Family)
 Rahona Forster, Sampson, Chiappe & Krause, 1998 † accepted as Rahonavis Forster, Sampson, Chiappe & Krause, 1998 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Saurischia (Order) > Dromaeosauridae (Family)

Raiboscelis
     Raiboscelis Allard, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Raiboscelis Seidlitz in Erichson, 1896 accepted as Raiboscelis Allard, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Raimondia
 Raimondia Safford, 1913 accepted as Annona Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Magnoliales (Order) > Annonaceae (Family)
     Raimondia Townsend, 1917 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sarcophagidae (Family)

Raineria
     Raineria Mikrjukov, 1999 accepted as Raineria Mikrjukov, 1999 (unassessed) · Chromista (Kingdom) > Heliozoa (Phylum) > (Class) > Centrohelida (Order) > Acanthocystidae (Family)
     Raineria Dabert, 2003 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Syringobiidae (Family)
     Raineria Osswald, 1928 † · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Ctenacanthiformes (Order) > Ctenacanthiformes (awaiting allocation) (Family)

Raja
     Raja J. Burman, 1758 accepted as Raja J. Burman, 1758 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Dioscoreales (Order) > Dioscoreaceae (Family)
     Raja Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Rajiformes (Order) > Rajidae (Family)

Rajania
     Rajania Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Dioscoreales (Order) > Dioscoreaceae (Family)
 Rajania T. Walter, 1788 accepted as Brunnichia Banks ex J. Gaertner, 1788 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Polygonaceae (Family)

Ralfsia
     Ralfsia Berkeley in Smith & Sowerby, 1843 · Chromista (Kingdom) > Ochrophyta (Phylum) > Phaeophyceae (Class) > Ectocarpales (Order) > Ralfsiaceae (Family)
     Ralfsia O'Meara, 1875 accepted as Ralfsia O'Meara, 1875 · Chromista (Kingdom) > Ochrophyta (Phylum) > Bacillariophyceae (Class) > Bacillariophyceae (awaiting allocation) (Order) > Bacillariophyceae (awaiting allocation) (Family)
     Ralfsia · Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > Fungi (awaiting allocation) (Class) > Fungi (awaiting allocation) (Order) > Fungi (awaiting allocation) (Family)

Ralia
     Ralia Lazarev, 1987 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Araksalosiidae (Family)
     Ralia Gray, 1842 accepted as Ralia Gray, 1842 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Ralpharia
     Ralpharia Watson, 1980 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Tubulariidae (Family)
     Ralpharia Roesler, 1990 accepted as Ralpharia Roesler, 1990 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Rama
     Rama Bleeker, 1858 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Siluriformes (Order) > Bagridae (Family)
 Rama Böhm, 1895 † accepted as Ramina Wenz, 1938 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neotaenioglossa (Order) > Neotaenioglossa (awaiting allocation) (Family)
 Rama V.J. Chapman, 1952 accepted as Rhizoclonium Kützing, 1843 · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Cladophorales (Order) > Cladophoraceae (Family)

Ramakrishnania
     Ramakrishnania P. Ramachar & G. Bhagyanarayana, 1979 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Pucciniaceae (Family)
     Ramakrishnania Dworakowska, 1974 accepted as Ramakrishnania Dworakowska, 1974 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)

Ramalia
     Ramalia Mercet, 1947 accepted as Ramalia Mercet, 1947 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Ramalia Batista, 1957 accepted as Fusicladium Bonorden, 1851 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Pleosporales (Order) > Venturiaceae (Family)
 Ramalia Mercet, 1947 accepted as Metaphaenodiscus Mercet, 1921 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Encyrtidae (Family)
 Ramalia Ferrière, 1953 accepted as Metaphaenodiscus Mercet, 1921 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Encyrtidae (Family)

Ramaria
     Ramaria E.M. Fries ex Bonorden, 1851 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Gomphales (Order) > Gomphaceae (Family)
 Ramaria Holmskjold, 1790 accepted as Clavulinopsis Overeem, 1923 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Clavariaceae (Family)

Ramburia
     Ramburia Warren, 1926 accepted as Ramburia Warren, 1926 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Ramburia Robineau-Desvoidy, 1851 accepted as Ramburia Robineau-Desvoidy, 1851 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
 Ramburia Bolivar, 1897 accepted as Ramburiella Bolivar, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)

Ramella
 Ramella Michaelsen, 1922 accepted as Ramella Michaelsen, 1922 (Misspelling) · Animalia (Kingdom) > Annelida (Phylum) > Oligochaeta (Class) > Oligochaeta (awaiting allocation) (Order) > Oligochaeta (awaiting allocation) (Family)
 Ramella Schulze, 1904 accepted as Sarostegia Topsent, 1904 (junior synonym) · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Hexactinosida (Order) > Farreidae (Family)

Ramirezella
     Ramirezella J.N. Rose, 1903 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Ramirezella Fernández-Yépez, 1949 accepted as Hemigrammus Gill, 1858 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Characiformes (Order) > Characidae (Family)

Ramirezia
     Ramirezia Zamponi, 1980 · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Actiniaria (Order) > Acontiophoridae (Family)
     Ramirezia Molino-Olmedo, 2001 accepted as Ramirezia Molino-Olmedo, 2001 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lucanidae (Family)
     Ramirezia A. Richard in Sagra, 1846 accepted as Ramirezia A. Richard in Sagra, 1846 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Ramirezia M.S.Calderon, G.H.Boo, A. Mansilla & S.M.Boo, 2014 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Halymeniales (Order) > Halymeniaceae (Family)

Ramona
     Ramona Kugler, 1980 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Ramona Casey, 1886 accepted as Ramona Casey, 1886 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Ramona Bruner, 1905 accepted as Spaniacris Hebard, 1937 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Romaleidae (Family)
 Ramona E.L. Greene, 1892 accepted as Salvia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)

Ramonda
     Ramonda Robineau-Desvoidy, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Ramonda L.C.M. Richard, 1805 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)

Ramonia
     Ramonia Stizenberger, 1862 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Ostropales (Order) > Gyalectaceae (Family)
 Ramonia Schlechter, 1923 accepted as Scaphyglottis Poeppig & Endlicher, 1836 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Ramosia
     Ramosia Engelhardt, 1946 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Sesiidae (Family)
 Ramosia Merrill, 1916 accepted as Centotheca Desvaux, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Ramosia Stepanjants, 1967 accepted as Apolemia Eschscholtz, 1829 (preoccupied by Ramosia Engelhardt, 1946 [Lepidoptera]) · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Siphonophorae (Order) > Apolemiidae (Family)

Ramotha
     Ramotha Rafinesque, 1837 accepted as Ramotha Rafinesque, 1837 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Xyridaceae (Family)
     Ramotha Martens, 1992 · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Cyprididae (Family)

Ramphiculus
     Ramphiculus Bonaparte, 1854 accepted as Ramphiculus Bonaparte, 1854 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Ramphiculus Bonaparte, 1854 accepted as Ramphiculus Bonaparte, 1854 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Ramphidia
 Ramphidia Meigen, 1830 accepted as Ramphidia Meigen, 1830 (Misspelling) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tipulidae (Family)
 Ramphidia F.A.W. Miquel, 1858 accepted as Myrmechis (Lindley) Blume, 1858 (?) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Ramphobrachium
 Ramphobrachium Ehlers, 1887 accepted as Rhamphobrachium Ehlers, 1887 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Eunicida (Order) > Onuphidae (Family)
 Ramphobrachium [auctt.] accepted as Rhamphobrachium Ehlers, 1887 (misspelling for Rhamphobrachium) · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Eunicida (Order) > Onuphidae (Family)

Ramphodus
     Ramphodus Davis, 1883 † accepted as Ramphodus Davis, 1883 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Ramphodus Jaekel, 1903 † accepted as Ramphodus Jaekel, 1903 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Ramphostoma
     Ramphostoma Jan, 1861 accepted as Ramphostoma Jan, 1861 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Leptotyphlopidae (Family)
     Ramphostoma Wagler, 1830 accepted as Ramphostoma Wagler, 1830 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Crocodylia (Order) > Crocodylia (awaiting allocation) (Family)

Ramsdenia
     Ramsdenia Preston, 1913 accepted as Ramsdenia Preston, 1913 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Pomatiidae (Family)
 Ramsdenia N.L. Britton, 1920 accepted as Phyllanthus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Phyllanthaceae (Family)

Ramularia
     Ramularia H. Roussel, 1806 accepted as Ramularia H. Roussel, 1806 (unassessed) · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Ulvales (Order) > Ulvaceae (Family)
     Ramularia Unger, 1833 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Capnodiales (Order) > Mycosphaerellaceae (Family)
 Ramularia P.A. Saccardo, 1880 accepted as Ramularia Unger, 1833 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Capnodiales (Order) > Mycosphaerellaceae (Family)
 Ramularia Jordan & Evermann, 1898 accepted as Ancylopsetta Gill, 1864 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Pleuronectiformes (Order) > Paralichthyidae (Family)

Ramulina
     Ramulina J. Thurmann, 1863 † accepted as Ramulina J. Thurmann, 1863 † (unassessed) · Plantae (Kingdom) > Algae (awaiting allocation) (Phylum) > Algae (awaiting allocation) (Class) > Algae (awaiting allocation) (Order) > Algae (awaiting allocation) (Family)
     Ramulina Velenovský, 1947 accepted as Pseudombrophila Boudier, 1885 · Fungi (Kingdom) > Ascomycota (Phylum) > Pezizomycetes (Class) > Pezizales (Order) > Pyronemataceae (Family)
     Ramulina Jones, 1875 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Lagenida (Order) > Polymorphinidae (Family)

Ranaria
     Ranaria Chamisso, 1833 accepted as Ranaria Chamisso, 1833 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Scrophulariaceae (Family)
 Ranaria Rafinesque, 1814 accepted as Rana Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Ranidae (Family)

Ranatra
     Ranatra Fabricius, 1790 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Nepidae (Family)
     Ranatra Lesson, 1835 accepted as Ranatra Lesson, 1835 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Membracidae (Family)

Ranavalona
     Ranavalona Kraft, 1977 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Gigartinales (Order) > Acrotylaceae (Family)
     Ranavalona Lehrer, 2003 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sarcophagidae (Family)

Randia
     Randia Delacour & Berlioz, 1931 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Sylviidae (Family)
     Randia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Randicephalus
     Randicephalus Ivshin, 1962 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ptychopariida (awaiting allocation) (Family)
     Randicephalus Ivshin, 1983 † accepted as Randicephalus Ivshin, 1983 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Rangia
     Rangia Desmoulins, 1832 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Mactridae (Family)
 Rangia A.H.R. Grisebach, 1866 accepted as Randia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
 Rangia Agassiz, 1860 accepted as Beroe Gronov, 1760 · Animalia (Kingdom) > Ctenophora (Phylum) > Nuda (Class) > Beroida (Order) > Beroidae (Family)

Rangifer
     Rangifer Smith, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Cervidae (Family)
 Rangifer Gistl, 1847 accepted as Titoceres Thomson, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Rangifer Frisch, 1775 accepted as Rangifer Smith, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Cervidae (Family)

Raniceps
     Raniceps Oken, 1817 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Gadiformes (Order) > Gadidae (Family)
     Raniceps Wyman, 1858 accepted as Raniceps Wyman, 1858 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)

Ranidina
     Ranidina Bittner, 1893 † · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Raninidae (Family)
     Ranidina Bittner, 1893 † accepted as Ranidina Bittner, 1893 † · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Raninidae (Family)

Ranikothalia
     Ranikothalia Arni, 1965 † accepted as Ranikothalia Arni, 1965 † (unassessed) · Protozoa (Kingdom) > (Phylum) > (Class) > (Order) > Protozoa (awaiting allocation) (Family)
     Ranikothalia Caudri, 1944 † · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Nummulitidae (Family)

Ranina
     Ranina David, 1871 accepted as Ranina David, 1871 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)
     Ranina Lamarck, 1801 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Raninidae (Family)

Ranolus
     Ranolus Blair in Boden Kloss, 1929 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)
 Ranolus Háva & Kalík, 2005 accepted as Ranolus Blair in Boden Kloss, 1929 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dermestidae (Family)

Ransonia
 Ransonia Dolin & Lozouet, 2004 † accepted as Ransoniella Dolin & Lozouet, 2005 (Invalid: junior homonym of Ransonia Blandin, 1979 [Arachnida]; Ransoniella is a replacement name) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Cypraeidae (Family)
     Ransonia Blandin, 1979 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Pisauridae (Family)
     Ransonia Kramp, 1947 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Trachylina (Order) > Rhopalonematidae (Family)

Ranula
     Ranula Peters, 1859 accepted as Ranula Peters, 1859 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)
     Ranula Schumacher, 1817 accepted as Ranula Schumacher, 1817 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Ranellidae (Family)

Ranularia
     Ranularia Schumacher, 1817 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Ranellidae (Family)
     Ranularia Fischer, 1884 accepted as Ranularia Fischer, 1884 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Ranellidae (Family)

Ranunculiphilus
 Ranunculiphilus Wagner, 1944 accepted as Prisistus Reitter, 1916 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Ranunculiphilus Dieckmann, 1969 accepted as Ranunculiphilus Wagner, 1944 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Ranzania
     Ranzania Nardo, 1840 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Tetraodontiformes (Order) > Molidae (Family)
     Ranzania T. Ito, 1888 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ranunculales (Order) > Berberidaceae (Family)
 Ranzania Claparède, 1870 accepted as Mesochaetopterus Potts, 1914 (junior homonym) · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Chaetopterida (Order) > Chaetopteridae (Family)
 Ranzania Bertolini, 1855 accepted as Rhamphorrhina Klug, 1855 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Raoulia
     Raoulia J.D. Hooker ex Raoul, 1846 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Raoulia Ng, 1987 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Acidopsidae (Family)

Rapa
     Rapa P. Miller, 1754 accepted as Rapa P. Miller, 1754 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)
     Rapa Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Muricidae (Family)
     Rapa Scudder, 1882 accepted as Rapa Scudder, 1882 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Rapa Fabricius, 1823 accepted as Rapa Fabricius, 1823 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Rapanus
     Rapanus Sowerby, 1839 accepted as Rapanus Sowerby, 1839 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Rapanus Blainville, 1826 accepted as Rapana Schumacher, 1817 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Muricidae (Family)

Rapara
     Rapara Gray, 1825 accepted as Rapara Gray, 1825 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
 Rapara Pagenstecher, 1909 accepted as Raparna Moore in Hewitson & Moore, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Raperia
     Raperia Mathews, 1915 accepted as Raperia Mathews, 1915 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Raperia C.V. Subramanian & C. Rajendran, 1976? accepted as Aspergillus Micheli ex Link, 1809 · Fungi (Kingdom) > Ascomycota (Phylum) > Eurotiomycetes (Class) > Eurotiales (Order) > Trichocomaceae (Family)

Raphia
     Raphia Hübner, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Raphia Palisot de Beauvois, 1806 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Arecaceae (Family)

Raphidiella
     Raphidiella Pascher, 1939 · Chromista (Kingdom) > Ochrophyta (Phylum) > Xanthophyceae (Class) > Mischococcales (Order) > Botryochloridaceae (Family)
 Raphidiella Maltzan, 1886 accepted as Raphidiella Maltzan, 1886 (Misspelling) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Raphidiocystis
     Raphidiocystis J.D. Hooker in Bentham & J.D. Hooker, 1867 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Cucurbitales (Order) > Cucurbitaceae (Family)
 Raphidiocystis Doflein, 1928 accepted as Raphidocystis Pénard, 1904 · Chromista (Kingdom) > Heliozoa (Phylum) > (Class) > Centrohelida (Order) > Raphidiophryidae (Family)

Raphidium
     Raphidium Westwood, 1854 † accepted as Raphidium Westwood, 1854 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Neuroptera (awaiting allocation) (Family)
     Raphidium Moniez, 1887 accepted as Raphidium Moniez, 1887 (unassessed) · Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Raphidonema
     Raphidonema Hinde, 1883 † · Animalia (Kingdom) > Porifera (Phylum) > Calcarea (Class) > Sycettida (Order) > Lelapiidae (Family)
     Raphidonema Lagerheim, 1892 · Plantae (Kingdom) > Chlorophyta (Phylum) > Trebouxiophyceae (Class) > Chlorellales (Order) > Chlorellaceae (Family)

Raphidopalpa
     Raphidopalpa Blanchard, 1845 accepted as Raphidopalpa Blanchard, 1845 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Raphidopalpa Dejean, 1835 accepted as Raphidopalpa Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Raphidopalpa Chevrolat, 1837 accepted as Aulacophora Chevrolat, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Raphidopalpa Rosenhauer, 1856 accepted as Aulacophora Chevrolat, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Raphidophora
 Raphidophora J.C. Hasskarl, 1842 accepted as Rhaphidophora Hasskarl, 1842 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Araceae (Family)
 Raphidophora Audinet-Serville, 1838 accepted as Rhaphidophora Audinet-Serville, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Rhaphidophoridae (Family)

Raphigaster
 Raphigaster Saussure, 1853 accepted as Belonogaster de Saussure, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Vespidae (Family)
 Raphigaster Westwood, 1837 accepted as Rhaphigaster Laporte, 1832 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)

Raphiodon
 Raphiodon Jourdan, 1834 accepted as Dasypeltis Wagler, 1830 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)
 Raphiodon G. Bentham, 1848 accepted as Rhaphiodon Schauer, 1844 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)
 Raphiodon Müller & Troschel, 1844 accepted as Rhaphiodon Agassiz in Spix & Agassiz, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Characiformes (Order) > Cynodontidae (Family)

Raphiophora
     Raphiophora Gray, 1867 accepted as Raphiophora Gray, 1867 (unassessed) · Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)
     Raphiophora Schaum, 1851 accepted as Raphiophora Schaum, 1851 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Dictyopharidae (Family)

Raphiptera
     Raphiptera Hampson, 1896 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Crambidae (Family)
 Raphiptera accepted as Rhaphiptera Serville, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Raphirhynchus
     Raphirhynchus Dejean, 1834 accepted as Raphirhynchus Dejean, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
     Raphirhynchus Schönherr, 1840 accepted as Raphirhynchus Schönherr, 1840 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)

Raphirus
     Raphirus Stephens, 1833 accepted as Raphirus Stephens, 1833 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Raphirus Andrews, 1868 accepted as Raphirus Andrews, 1868 (Misspelling) · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Hadromerida (Order) > Clionaidae (Family)
     Raphirus Stephens, 1829 accepted as Quedius Stephens, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Raphistoma
     Raphistoma Hall, 1847 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda incertae sedis (Order) > Raphistomatidae (Family)
 Raphistoma Rafinesque, 1815 accepted as Belone Cuvier, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Beloniformes (Order) > Belonidae (Family)

Raphitreodes
     Raphitreodes Newton & Chandler, 1989 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Raphitreodes Jeannel, 1958 accepted as Raphitreodes Newton & Chandler, 1989 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Raphus
     Raphus Brisson, 1760 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Columbiformes (Order) > Raphidae (Family)
 Raphus Möhring, 1758 accepted as Raphus Brisson, 1760 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Columbiformes (Order) > Raphidae (Family)

Raphyrus
     Raphyrus Bowerbank in McAndrew, 1861 accepted as Raphyrus Bowerbank in McAndrew, 1861 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Hadromerida (Order) > Clionaidae (Family)
 Raphyrus Bowerbank, 1862 accepted as Cliona Grant, 1826 (junior synonym) · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Hadromerida (Order) > Clionaidae (Family)

Rapinia
 Rapinia Loureiro, 1790 accepted as Sphenoclea J. Gaertner, 1788 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Solanales (Order) > Sphenocleaceae (Family)
 Rapinia Montrouzier, 1860 accepted as Neorapinia Moldenke, 1955 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)

Rapistrum
     Rapistrum Crantz, 1769 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)
 Rapistrum Scopoli, 1754 accepted as Rapistrum Scopoli, 1754 (nomen rejiciendum) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)
     Rapistrum Soldani, 1791 accepted as Rapistrum Soldani, 1791 (unassessed) · Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Rappia
     Rappia Günther, 1865 accepted as Rappia Günther, 1865 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Hyperoliidae (Family)
 Rappia Vaillant in Quatrefages (Vaillant), 1889 accepted as Microchaetus Rapp, 1849 · Animalia (Kingdom) > Annelida (Phylum) > Oligochaeta (Class) > Haplotaxida (Order) > Microchaetidae (Family)

Raptor
     Raptor Dejean, 1821 accepted as Raptor Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Raptor Lučnik, 1927 accepted as Raptor Lučnik, 1927 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Raptor Gistl, 1848 accepted as Melita Leach, 1814 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Melitidae (Family)
 Raptor Lutshnik, 1926 accepted as Pogonus Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Raptor Gistl, 1848 accepted as Melaphorus Guérin-Ménéville, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Rapuntium
 Rapuntium P. Miller, 1754 accepted as Lobelia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Campanulaceae (Family)
 Rapuntium T.E. von Post & C.E.O. Kuntze accepted as Campanula Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Campanulaceae (Family)

Rarocyathus
     Rarocyathus Osadchaya in Osadchaya, Kashina, Zhuravleva & Borodina, 1979 † accepted as Rarocyathus Osadchaya in Osadchaya, Kashina, Zhuravleva & Borodina, 1979 † (unassessed) · Animalia (Kingdom) > Archaeocyatha (Phylum) > Regulares (Class) > Regulares (awaiting allocation) (Order) > Regulares (awaiting allocation) (Family)
     Rarocyathus Vologdin & Yankauskas, 1968 † · Animalia (Kingdom) > Problematica (Phylum) > Cribricyathea (Class) > Cribricyathea (awaiting allocation) (Order) > Cribricyathea (awaiting allocation) (Family)

Rasalia
 Rasalia Moore, 1898 accepted as Neptis Fabricius, 1807 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nymphalidae (Family)
 Rasalia Gray, 1867 accepted as Raspailia Nardo, 1833 (misspelling) · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Axinellida (Order) > Raspailiidae (Family)

Rasettaspis
     Rasettaspis Ivshin, 1962 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ptychopariida (awaiting allocation) (Family)
     Rasettaspis Ivshin, 1983 † accepted as Rasettaspis Ivshin, 1983 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Rasnitsynia
     Rasnitsynia Kovalev, 1994 † accepted as Rasnitsynia Kovalev, 1994 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Rasnitsynia Pagliano & Scaramozzino, 1989 accepted as Rasnitsynia Pagliano & Scaramozzino, 1989 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Raspailia
     Raspailia Nardo, 1833 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Axinellida (Order) > Raspailiidae (Family)
 Raspailia Agassiz, 1846 accepted as Raspailia Agassiz, 1846 (Unjustified (?) emendation) · Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)
 Raspailia Gray, 1867 accepted as Raspailia Gray, 1867 (Misspelling) · Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)
 Raspailia J.S. Presl & C.B. Presl, 1830 accepted as Polypogon Desfontaines, 1798 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Raspalia
     Raspalia A.T. Brongniart, 1826 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Bruniales (Order) > Bruniaceae (Family)
 Raspalia Nardo, 1833 accepted as Raspailia Nardo, 1833 (misspelling) · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Axinellida (Order) > Raspailiidae (Family)

Rastafaria
     Rastafaria Ramme, 1931 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)
 Rastafaria Taylor & Glover, 1997 accepted as Rasta J. D. Taylor & Glover, 2000 (Invalid: junior homonym of Rastafaria Ramme, 1931 [Orthoptera]; Rasta is a replacement name) · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Lucinidae (Family)

Ratelus
 Ratelus Gray, 1825 accepted as Mellivora Storr, 1780 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Mustelidae (Family)
 Ratelus Bennett, 1830 accepted as Mellivora Storr, 1780 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Mustelidae (Family)

Rathbunella
     Rathbunella Jordan & Evermann, 1896 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Bathymasteridae (Family)
 Rathbunella Collins in Collins, Portell & Donovan, 2009 † accepted as Rathbunites Schweitzer, Dworschak & Martin, 2011 † · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Portunidae (Family)

Rathbunia
     Rathbunia Nobili, 1896 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Pseudothelphusidae (Family)
 Rathbunia N.L. Britton & J.N. Rose, 1909 accepted as Stenocereus (A. Berger) Riccobono, 1909 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Cactaceae (Family)

Rathea
 Rathea G.K.W.H. Karsten, 1860 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Passifloraceae (Family)
 Rathea G.K.W.H. Karsten, 1858 accepted as Synechanthus H. Wendland, 1858 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Arecaceae (Family)

Rathkea
     Rathkea Brandt, 1837 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Rathkeidae (Family)
     Rathkea H.C.F. Schumacher, 1827 accepted as Rathkea H.C.F. Schumacher, 1827 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Rathkea Haeckel, 1879 accepted as Rathkea Haeckel, 1879 (Misspelling) · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Rathymus
     Rathymus Dejean, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Rathymus Brulle in Audouin & Brulle, 1834 accepted as Rathymus Dejean, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Rathymus Smith, 1854 accepted as Rhathymus Lepeletier & Serville, 1828 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Apidae (Family)
 Rathymus Gistl, 1848 accepted as Actinopyga Bronn, 1860 · Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Holothuriida (Order) > Holothuriidae (Family)

Rattana
     Rattana van Achterberg, 1994 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Braconidae (Family)
     Rattana Rose & Pajni, 1979 accepted as Rattana Rose & Pajni, 1979 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)

Rattilaelaps
     Rattilaelaps Lange in Bregetova et al., 1955 accepted as Rattilaelaps Lange in Bregetova et al., 1955 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Laelapidae (Family)
 Rattilaelaps Zakhvatkin, 1948 accepted as Laelaps Koch, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Mesostigmata (Order) > Laelapidae (Family)

Rattus
     Rattus Fischer de Waldheim, 1803 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Muridae (Family)
 Rattus Frisch, 1775 accepted as Rattus Fischer de Waldheim, 1803 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Muridae (Family)
 Rattus Gray, 1821 accepted as Rattus Fischer de Waldheim, 1803 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Muridae (Family)

Ratzeburgia
 Ratzeburgia Kunth, 1831 accepted as Mnesithea Kunth, 1829 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Ratzeburgia Förster, 1856 accepted as Eusandalum Ratzeburg, 1852 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Pteromalidae (Family)

Rauffia
     Rauffia Zeise, 1897 † · Animalia (Kingdom) > Porifera (Phylum) > Calcispongea (Class) > Pharetronida (Order) > Pharetronida (awaiting allocation) (Family)
 Rauffia Schulz, 1914 † accepted as Bornhardtina Schulz, 1914 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Stringocephalidae (Family)

Rauia
     Rauia C.G.D. Nees & C.F.P. Martius, 1823 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)
 Rauia Austin, 1880 accepted as · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hypnobryales (Order) > Thuidiaceae (Family)

Rauna
     Rauna Öpik, 1932 accepted as Rauna Öpik, 1932 (unassessed) · Animalia (Kingdom) > Brachiopoda (Phylum) > Brachiopoda (awaiting allocation) (Class) > Brachiopoda (awaiting allocation) (Order) > Brachiopoda (awaiting allocation) (Family)
     Rauna Münster, 1839 † accepted as Rauna Münster, 1839 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Penaeidae (Family)

Rauschivingylus
     Rauschivingylus Kontrimav'ichus & Delyamure, 1979 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Rhabditida (Order) > Filaroididae (Family)
 Rauschivingylus Kontrimavichus & Delyamure, 1985 accepted as Rauschivingylus Kontrimav'ichus & Delyamure, 1979 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Rhabditida (Order) > Filaroididae (Family)

Rauserella
     Rauserella Zwick, 1997 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Plecoptera (Order) > Perlodidae (Family)
     Rauserella Dunbar, 1944 † · Chromista (Kingdom) > Retaria (Phylum) > Tubothalamea (Class) > Fusulinida (Order) > Ozawainellidae (Family)

Rauwolfia
 Rauwolfia H. Ruiz López & J.A. Pavon, 1799 accepted as Citharexylum Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Verbenaceae (Family)
 Rauwolfia Linnaeus accepted as Rauvolfia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)

Ravenelia
     Ravenelia M.J. Berkeley, 1853 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Raveneliaceae (Family)
 Ravenelia McCrady, 1859 † accepted as Eurhodia Haime in d'Archiac & Haime, 1853 (subjective junior synonym) · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Cassiduloida (Order) > Cassidulidae (Family)

Ravenia
     Ravenia Crosse, 1873 accepted as Ravenia Crosse, 1873 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Ravenia Vellozo, 1829 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)

Rawlingspython
 Rawlingspython Hoser, 2009 accepted as Antaresia Wells & Wellington, 1983 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Boidae (Family)
 Rawlingspython Hoser, 2012 accepted as Antaresia Wells & Wellington, 1983 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Boidae (Family)

Raya
     Raya Hodgson, 1839 accepted as Raya Hodgson, 1839 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Raya Hollberg, 1819 accepted as Raja Linnaeus, 1758 (misspelling) · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Rajiformes (Order) > Rajidae (Family)

Rayella
     Rayella Teichert, 1939 † accepted as Rayella Teichert, 1939 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Trachyleberididae (Family)
     Rayella Dasgupta, 1967 · Chromista (Kingdom) > Miozoa (Phylum) > Coccidiomorphea (Class) > Haemosporida (Order) > Plasmodiidae (Family)

Raymondella
     Raymondella Bougon, 1901 accepted as Raymondella Bougon, 1901 (unassessed) · Protozoa (Kingdom) > Euglenozoa (Phylum) > Euglenophyceae (Class) > Euglenophyceae (awaiting allocation) (Order) > Euglenophyceae (awaiting allocation) (Family)
     Raymondella Bancroft, 1933 accepted as Raymondella Bancroft, 1933 (unassessed) · Animalia (Kingdom) > Brachiopoda (Phylum) > Brachiopoda (awaiting allocation) (Class) > Brachiopoda (awaiting allocation) (Order) > Brachiopoda (awaiting allocation) (Family)
     Raymondella Reed, 1935 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Asaphida (Order) > Asaphida (awaiting allocation) (Family)
 Raymondella Bancroft, 1945 † accepted as Bancroftina Sinclair, 1946 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Orthida (Order) > Dalmanellidae (Family)

Raymondia
     Raymondia Frauenfeld, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Hippoboscidae (Family)
 Raymondia Campos, 2002 accepted as Raytheres E. Campos, 2004 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Pinnotheridae (Family)
 Raymondia Aubé, 1861 accepted as Raymondionymus Wollaston, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brachyceridae (Family)

Raymondionymus
     Raymondionymus Wollaston, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brachyceridae (Family)
 Raymondionymus Ganglbauer, 1906 accepted as Ferreria Alonso-Zarazaga & Lyal, 1999 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brachyceridae (Family)

Rayneria
     Rayneria Neale, 1975 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Trachyleberididae (Family)
 Rayneria Nardo, 1833 accepted as Petrosia Vosmaer, 1885 (nomen nuduum) · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Petrosiida (Order) > Petrosiidae (Family)

Razumovia
 Razumovia K.P.J. Sprengel ex A.L. Jussieu in F. Cuvier, 1826 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Razumovia K.P.J. Sprengel, 1807 accepted as Centranthera R. Brown, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Orobanchaceae (Family)

Realaspis
     Realaspis Sdzuy, 1961 † accepted as Realaspis Sdzuy, 1961 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Realaspis Lotze, 1958 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Redlichiida (Order) > Redlichiida (awaiting allocation) (Family)

Realia
     Realia Carvalho & Costa, 1992 accepted as Realia Carvalho & Costa, 1992 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)
     Realia Gray, 1850 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Architaenioglossa (Order) > Pupinidae (Family)
 Realia Gray, 1840 accepted as Liarea L. Pfeiffer, 1853 (nomen nudum) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Architaenioglossa (Order) > Pupinidae (Family)

Reaumuria
     Reaumuria Linnaeus, 1759 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Tamaricaceae (Family)
     Reaumuria Robineau-Desvoidy, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Rebentischia
     Rebentischia P.A. Karsten, 1869 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Pleosporales (Order) > Tubeufiaceae (Family)
 Rebentischia P.M. Opiz, 1854 accepted as Trisetum Persoon, 1805 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Recchia
     Recchia Lane, 1966 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Recchia Sessé & Moçiño ex A.P. de Candolle, 1817 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Surianaceae (Family)

Receptaculites
     Receptaculites Deshayes in Bory de St.-Vincent, 1828 † · Animalia (Kingdom) > Problematica (Phylum) > Problematica (awaiting allocation) (Class) > Receptaculitida (Order) > Receptaculitidae (Family)
     Receptaculites Blainville, 1830 † · Animalia (Kingdom) > Problematica (Phylum) > Problematica (awaiting allocation) (Class) > Receptaculitida (Order) > Receptaculitidae (Family)

Rectochernyshinella
 Rectochernyshinella Conil & Lys, 1977 † accepted as Lipinellina Loeblich & Tappan, 1985 † (Preoccuppied. Opinion of Loeblich & Tappan, 1987) · Chromista (Kingdom) > Retaria (Phylum) > Tubothalamea (Class) > Fusulinida (Order) > Tournayellidae (Family)
     Rectochernyshinella Lipina, 1960 † · Chromista (Kingdom) > Retaria (Phylum) > Tubothalamea (Class) > Fusulinida (Order) > Palaeospiroplectamminidae (Family)

Rectofrontia
     Rectofrontia Wagner, 1930 accepted as Rectofrontia Wagner, 1930 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Siphonaptera (Order) > Siphonaptera (awaiting allocation) (Family)
     Rectofrontia Wagner, 1934 accepted as Rectofrontia Wagner, 1934 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Siphonaptera (Order) > Siphonaptera (awaiting allocation) (Family)

Redheadia
     Redheadia Y. Suto & Suyama, 2005 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Helotiales (Order) > Sclerotiniaceae (Family)
     Redheadia · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Helotiales (Order) > Sclerotiniaceae (Family)

Redia
     Redia Lioy, 1864 accepted as Redia Lioy, 1864 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Redia Filippi, 1837 accepted as Redia Filippi, 1837 (unassessed) · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Trematoda (awaiting allocation) (Order) > Trematoda (awaiting allocation) (Family)
 Redia Casaretto, 1843 accepted as Cleidion Blume, 1826 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
 Redia Bezzi in Becker-Kertész, 1907 accepted as Rhedia Robineau-Desvoidy, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Redivius
     Redivius Melone & Taviani, 1984 accepted as Redivius Melone & Taviani, 1984 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
 Redivius accepted as Reduvius Fabricius, 1775 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Reduviidae (Family)

Redonia
     Redonia Rouault, 1851 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Hippuritida (Order) > Redoniidae (Family)
     Redonia C.W. Dodge, 1973 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Teloschistales (Order) > Physciaceae (Family)

Redtenbacheria
     Redtenbacheria Steindachner, 1867 accepted as Redtenbacheria Steindachner, 1867 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Agamidae (Family)
     Redtenbacheria Schiner, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Reedia
     Reedia F. von Mueller, 1859 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Cyperaceae (Family)
     Reedia Ashmead, 1904 accepted as Reedia Ashmead, 1904 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Reedia Aldrich, 1928 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Reedia André, 1904 accepted as Reedia André, 1904 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Reedia Wedekind, 1912 † accepted as Reedops Richter, 1925 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Phacopida (Order) > Pterygometopidae (Family)

Reediella
     Reediella Osmolska, 1970 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Proetida (Order) > Phillipsiidae (Family)
 Reediella Pichi Sermolli, 1970 accepted as Crepidomanes K.B. Presl, 1851 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Hymenophyllales (Order) > Hymenophyllaceae (Family)

Reganichthys
 Reganichthys Ogilby, 1915 accepted as Glaucosoma Temminck & Schlegel in Siebold, 1843 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Glaucosomatidae (Family)
 Reganichthys Bigelow & Barbour, 1944 accepted as Ceratias Krøyer, 1845 (synonym) · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Lophiiformes (Order) > Ceratiidae (Family)

Regelia
     Regelia Schauer, 1843 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Myrtaceae (Family)
 Regelia (Lemaire) C.A.M. Lindman, 1890 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Bromeliaceae (Family)
 Regelia Crickmay, 1952 † accepted as Cyrtospirifer Fredericks, 1924 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Cyrtospiriferidae (Family)
 Regelia Hort. ex H. Wendland, 1865 accepted as Verschaffeltia H. Wendland, 1865 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Arecaceae (Family)

Regillus
     Regillus Macgillivray, 1839 accepted as Regillus Macgillivray, 1839 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Regillus Cambridge, 1884 accepted as Borboropactus Simon, 1884 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Thomisidae (Family)

Regina
     Regina S.R. Samoilovitch in S.R. Samoilovitch et al., 1961 † accepted as Regina S.R. Samoilovitch in S.R. Samoilovitch et al., 1961 † (unassessed) · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)
     Regina Baird & Girard, 1853 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)
     Regina Egorova, 1967 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Regina Martynov, 1924 accepted as Regina Martynov, 1924 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Phryganeidae (Family)
 Regina Barrande, 1881 † accepted as Regina Barrande, 1881 † (Unjustified (?) emendation) · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Praecardioida (Order) > Praecardiidae (Family)

Regius
     Regius Narolsky, 1990 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
     Regius Egorova, 1970 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Ptychopariida (Order) > Ptychopariida (awaiting allocation) (Family)

Regnellia
     Regnellia Lauritzen, 1974 † accepted as Regnellia Lauritzen, 1974 † (unassessed) · Animalia (Kingdom) > Bryozoa (Phylum) > Bryozoa (awaiting allocation) (Class) > Bryozoa (awaiting allocation) (Order) > Bryozoa (awaiting allocation) (Family)
 Regnellia Barbosa Rodrigues, 1877 accepted as Bletia Ruiz & Pavón, 1794 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Regulus
     Regulus Cuvier, 1800 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Regulidae (Family)
     Regulus Bartram, 1791 accepted as Regulus Cuvier, 1800 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Regulidae (Family)
 Regulus Dana, 1852 accepted as Thalassocaris Stimpson, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Thalassocarididae (Family)

Rehezamites
     Rehezamites C. Pott, S. McLoughlin, A. Lindström, S.-Q.Wu & E.M. Friis, 2012 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Cycadopsida (Class) > Cycadeoideales (Order) > Cycadeoideales (awaiting allocation) (Family)
     Rehezamites S.Q. Wu, 1999 † accepted as Rehezamites C. Pott, S. McLoughlin, A. Lindström, S.-Q.Wu & E.M. Friis, 2012 † (Informal name, subsequent valid publication by Pott et al., 2012) · Plantae (Kingdom) > Tracheophyta (Phylum) > Cycadopsida (Class) > Cycadeoideales (Order) > Cycadeoideales (awaiting allocation) (Family)

Rehmannia
     Rehmannia Schirardin, 1956 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Ammonoidea (awaiting allocation) (Family)
     Rehmannia Liboschitz ex F.E.L. Fischer & C.A. Meyer, 1835 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Orobanchaceae (Family)

Rehmiomyces
 Rehmiomyces (P.A. Saccardo & P. Sydow) H. Sydow, 1904 accepted as Rehmiomycella E. Müller in E. Müller & J.A. von Arx, 1962 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Dothideomycetes incertae sedis (Order) > Dothideomycetes incertae sedis (Family)
 Rehmiomyces Hennings, 1904 accepted as Dictyonia H. Sydow, 1904 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Helotiales (Order) > Helotiaceae (Family)

Rehniella
     Rehniella Hebard, 1928 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Phalangopsidae (Family)
     Rehniella Lombardo, 1999 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Mantidae (Family)

Reichardia
     Reichardia Karsch, 1886 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Reichardia A.W. Roth, 1787 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Reichardia A.W. Roth, 1800 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Scrophulariaceae (Family)
 Reichardia A.W. Roth, 1821 accepted as Pterolobium R. Brown ex R. Wight & Arnott, 1834 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Reichardtia
     Reichardtia Wenzel, 1944 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Histeridae (Family)
 Reichardtia Mateu, 1982 accepted as Negrea Mateu, 1968 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Reichardtia Kaszab, 1940 accepted as Reichardtiella Kaszab, 1942 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Reichardtiella
     Reichardtiella Kaszab, 1942 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Reichardtiella Filipjev, 1931 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Gelechiidae (Family)

Reichea
     Reichea Saulcy, 1862 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Reichea Kausel, 1940 accepted as Myrcianthes O.C. Berg, 1856 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Myrtaceae (Family)

Reicheia
     Reicheia Saulcy, 1862 accepted as Reicheia Saulcy, 1862 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Reicheia Kausel, 1940 accepted as Myrcianthes O.C. Berg, 1856 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Myrtaceae (Family)

Reicheltia
     Reicheltia Hardy, 1982 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Tetraodontiformes (Order) > Tetraodontidae (Family)
     Reicheltia H. Van Heurck, 1896 · Chromista (Kingdom) > Ochrophyta (Phylum) > Bacillariophyceae (Class) > Bacillariophyceae (awaiting allocation) (Order) > Bacillariophyceae (awaiting allocation) (Family)

Reichenbachia
     Reichenbachia K.P.J. Sprengel, 1823 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Nyctaginaceae (Family)
     Reichenbachia Leach, 1826 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Reichenbachia Nedashkovskaya et al., 2003 accepted as Reichenbachiella Nedashkovskaya, Kim, Suzuki, Shevchenko, Lee, Lee, Park, Frolova, Oh, Bae, Park & Mikhailov, 2005 · Bacteria (Kingdom) > Bacteroidetes (Phylum) > Cytophagia (Class) > Cytophagales (Order) > Flammeovirgaceae (Family)

Reichertia
     Reichertia H. Karsten, 1848 accepted as Reichertia H. Karsten, 1848 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Gentianaceae (Family)
 Reichertia Enderlein, 1912 accepted as Puranius Germain, 1895 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Reichlingia
     Reichlingia Diederich & Scheidegger, 1996 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
     Reichlingia Rudloff, 2001 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Barychelidae (Family)

Reidia
     Reidia Krombein, 1957 accepted as Reidia Krombein, 1957 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Chrysididae (Family)
 Reidia R. Wight, 1852 accepted as Phyllanthus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Phyllanthaceae (Family)

Reineckea
 Reineckea Dalton, 1882 † accepted as Reineckea Dalton, 1882 † (Misspelling) · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Reineckeiidae (Family)
     Reineckea Kunth, 1844 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Asparagaceae (Family)
 Reineckea H. Karsten, 1858 accepted as Synechanthus H. Wendland, 1858 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Arecaceae (Family)

Reineckia
 Reineckia Uhlig, 1882 † accepted as Reineckia Uhlig, 1882 † (Misspelling) · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Reineckeiidae (Family)
 Reineckia H. Karsten, 1858 accepted as Synechanthus H. Wendland, 1858 (original incorrect spelling (of Reineckea)) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Arecaceae (Family)

Reineria
     Reineria Miksic, 1968 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Reineria Moench, 1802 accepted as Tephrosia Persoon, 1807 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Reinhardia
     Reinhardia Sachkov, 1996 accepted as Reinhardia Sachkov, 1996 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Tineidae (Family)
     Reinhardia Iannilli, Krapp & Ruffo, 2011 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Dussartiellidae (Family)

Reinhardtia
     Reinhardtia Liebmann in C.F.P. Martius, 1849 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Arecaceae (Family)
     Reinhardtia Böttger, 1878 accepted as Reinhardtia Böttger, 1878 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Reinia
     Reinia Kobelt, 1876 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Clausiliidae (Family)
 Reinia Franchet & Savatier, 1878 accepted as Itea Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Saxifragales (Order) > Iteaceae (Family)

Reinwardtia
 Reinwardtia Blume ex C.G.D. Nees, 1823-1824 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Actinidiaceae (Family)
 Reinwardtia K.P.J. Sprengel, 1824 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Solanales (Order) > Convolvulaceae (Family)
     Reinwardtia Brauer & Bergenstamm, 1890 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Muscidae (Family)
     Reinwardtia Dumortier, 1822 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Linaceae (Family)
 Reinwardtia Korthals in Temminck, 1841 accepted as Ternstroemia Mutis ex Linnaeus f., 1782 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Pentaphylacaceae (Family)

Reisia
     Reisia Handlirsch, 1909 † accepted as Reisia Handlirsch, 1909 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Protodonata (Order) > Protodonata (awaiting allocation) (Family)
 Reisia Tomlin, 1929 † accepted as Closteroides Tomlin, 1929 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Neogastropoda (awaiting allocation) (Family)

Reissia
     Reissia Brundin, 1981 accepted as Reissia Brundin, 1981 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Chironomidae (Family)
     Reissia Loeblich & Tappan, 1964 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Cassidulinidae (Family)

Reitteria
     Reitteria Leder, 1872 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Latridiidae (Family)
 Reitteria Faust, 1891 accepted as Edmundia Faust, 1891 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Relictomoera
     Relictomoera Barnard & Karaman, 1991 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Pontogeneiidae (Family)
     Relictomoera Barnard & Karaman, 1982 accepted as Relictomoera Barnard & Karaman, 1982 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Malacostraca (awaiting allocation) (Order) > Malacostraca (awaiting allocation) (Family)

Relictus
     Relictus Hubbs & Miller, 1972 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cyprinidae (Family)
 Relictus Wang & Zhang, 1993 accepted as Paracortina Wang & Zhang, 1993 · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Callipodida (Order) > Paracortinidae (Family)

Remanella
     Remanella Foissner, 1996 · Chromista (Kingdom) > Ciliophora (Phylum) > Karyorelictea (Class) > Karyorelictida (Order) > Loxodidae (Family)
     Remanella Kahl, 1933 accepted as Remanella Foissner, 1996 (no type species designated) · Chromista (Kingdom) > Ciliophora (Phylum) > Karyorelictea (Class) > Karyorelictida (Order) > Loxodidae (Family)

Rembus
     Rembus Latreille in Cuvier, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Rembus Germar, 1824 accepted as Entyus Schoenherr, 1826 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Rembus Dejean, 1826 accepted as Diplocheila Brullé, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Remia
     Remia Schweitzer, 2003 † · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Paleoxanthopsidae (Family)
     Remia J. Knight, 1985 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Marattiales (Order) > Asterothecaceae (Family)

Remora
 Remora Forster, 1771 accepted as Remora Forster, 1771 (Not validly published) · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Echeneidae (Family)
     Remora Gill, 1862 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Echeneidae (Family)
 Remora Catesby, 1771 accepted as (Not available, published in a rejected work on Official Index (Opinion 89, Opinion 259)) · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Echeneidae (Family)
 Remora Gouan, 1770 accepted as Remora Gill, 1862 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Echeneidae (Family)

Remyella
     Remyella Jeannel, 1931 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Leiodidae (Family)
 Remyella Müller Hal., 1896 accepted as Rhynchostegiella (W.P. Schimper) Limpricht, 1896 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hypnobryales (Order) > Brachytheciaceae (Family)

Rena
     Rena Wei, 1997 accepted as Rena Wei, 1997 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Tenthredinidae (Family)
     Rena Baird & Girard, 1853 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Leptotyphlopidae (Family)

Renardia
     Renardia Jakolev, 1876 accepted as Renardia Jakolev, 1876 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Renardia Motschoulsky, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Renardia Turczaninow, 1858 accepted as Renardia Turczaninow, 1858 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Salicaceae (Family)

Renaudia
     Renaudia Racheboeuf, 1976 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Eodevonariidae (Family)
     Renaudia Lopez-Colon, 1995 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Geotrupidae (Family)

Renaultia
     Renaultia R. Zeiller, 1883 † accepted as Renaultia R. Zeiller, 1883 † (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Marattiales (Order) > Marattiaceae (Family)
 Renaultia D.R.J. Stur, 1883 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Marattiales (Order) > Marattiaceae (Family)

Renea
     Renea Donisthorpe, 1947 accepted as Renea Donisthorpe, 1947 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Renea Nevill, 1880 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Architaenioglossa (Order) > Aciculidae (Family)

Renealmia
     Renealmia Linnaeus f., 1782 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Zingiberales (Order) > Zingiberaceae (Family)
 Renealmia Houttuyn, 1777 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Gentianaceae (Family)
 Renealmia R. Brown, 1810 accepted as Libertia K.P.J. Sprengel, 1824 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Iridaceae (Family)
 Renealmia Linnaeus, 1753 accepted as Tillandsia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Bromeliaceae (Family)

Renia
     Renia Guenée, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
 Renia Lewis, 1885 accepted as Reninus Lewis, 1889 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Histeridae (Family)

Renicola
     Renicola Cohn, 1904 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Plagiorchiida (Order) > Renicolidae (Family)
     Renicola Sudarikov, 1951 accepted as Renicola Sudarikov, 1951 (unassessed) · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Trematoda (awaiting allocation) (Order) > Trematoda (awaiting allocation) (Family)

Reniera
     Reniera F. Stockmans, 1968 † accepted as Reniera F. Stockmans, 1968 † (unassessed) · Plantae (Kingdom) > Algae (awaiting allocation) (Phylum) > Algae (awaiting allocation) (Class) > Algae (awaiting allocation) (Order) > Algae (awaiting allocation) (Family)
 Reniera Schmidt, 1862 accepted as Haliclona Grant, 1841 (genus transfer) · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Haplosclerida (Order) > Chalinidae (Family)
 Reniera Nardo, 1847 accepted as Petrosia Vosmaer, 1885 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Petrosiida (Order) > Petrosiidae (Family)
 Reniera Bürger, 1895 accepted as Renieria Girard, 1853 · Animalia (Kingdom) > Nemertea (Phylum) > Nemertea (awaiting allocation) (Class) > Nemertea (awaiting allocation) (Order) > Nemertea (awaiting allocation) (Family)

Reniforma
     Reniforma R.S. Pore & W.G. Sorenson, 1990 · Fungi (Kingdom) > Basidiomycota (Phylum) > Microbotryomycetes (Class) > Microbotryales (Order) > Microbotryales incertae sedis (Family)
 Reniforma Yamaguti, 1970 accepted as Gonapodasmius Ishii, 1935 (synonym) · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Azygiida (Order) > Didymozoidae (Family)

Renispora
     Renispora L. Sigler & J.W. Carmichael in L. Sigler et al., 1979 · Fungi (Kingdom) > Ascomycota (Phylum) > Eurotiomycetes (Class) > Onygenales (Order) > Onygenaceae (Family)
     Renispora Kalavati, Longshaw & MacKenzie, 1996 · Animalia (Kingdom) > Cnidaria (Phylum) > Myxosporea (Class) > Bivalvulida (Order) > Alatasporidae (Family)

Rennellia
     Rennellia Clench, 1941 accepted as Rennellia Clench, 1941 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Rennellia Korthals, 1851 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Rensselaeria
 Rensselaeria L.C. Beck, 1833 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Araceae (Family)
     Rensselaeria Hall, 1859 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Centronellidae (Family)

Renulina
     Renulina Blainville, 1825 accepted as Renulina Blainville, 1825 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Renulina Blake, 1876 accepted as Renulina Blake, 1876 (unassessed) · Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)
     Renulina Lamarck, 1804 † · Chromista (Kingdom) > Retaria (Phylum) > Tubothalamea (Class) > Miliolida (Order) > Peneroplidae (Family)

Renyxa
     Renyxa Kozlov, 1994 accepted as Renyxa Kozlov, 1994 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Renyxa Kozlov, 1995 accepted as Renyxa Kozlov, 1995 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Renyxa Kurochkin & Slankis, 1973 † accepted as Litobothrium Dailey, 1969 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Tetraphyllidea (Order) > Litobothriidae (Family)

Repetekia
     Repetekia Oshanin, 1912 accepted as Repetekia Oshanin, 1912 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Repetekia Oshanin, 1913 accepted as Repetekia Oshanin, 1913 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Repetekia Amsel, 1955 accepted as Repetekiodes Amsel, 1961 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pyralidae (Family)

Repmania
     Repmania Kolesnikov, 1980 † accepted as Repmania Kolesnikov, 1980 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)
     Repmania Arapova & Suleimanov, 1966 † accepted as Repmania Arapova & Suleimanov, 1966 † (unassessed) · Protozoa (Kingdom) > (Phylum) > (Class) > Sarcomastigota (awaiting allocation) (Order) > Sarcomastigota (awaiting allocation) (Family)

Repucha
 Repucha Fet, 1997 accepted as Lychas Koch, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Scorpiones (Order) > Buthidae (Family)
 Repucha Francke, 1985 accepted as Lychas Koch, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Scorpiones (Order) > Buthidae (Family)

Requienia
     Requienia A.P. de Candolle, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Requienia Matheron, 1842 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Hippuritida (Order) > Requieniidae (Family)

Resseria
     Resseria Sun in Grabau, 1937 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Resseria Howell, 1945 † accepted as Resseria Howell, 1945 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Restiaria
 Restiaria O. Kuntze, 1891 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
 Restiaria Loureiro, 1790 accepted as Uncaria Schreber, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Resticuliscala
 Resticuliscala Cossmann, 1912 accepted as Epitonium Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ptenoglossa (Order) > Epitoniidae (Family)
 Resticuliscala de Boury, 1911 accepted as Epitonium Röding, 1798 (emendation of Recticuliscala) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ptenoglossa (Order) > Epitoniidae (Family)

Restio
     Restio Rottbøll, 1772 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Restionaceae (Family)
     Restio Moore, 1903 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Acoetidae (Family)
 Restio Linnaeus, 1767 accepted as Restio Linnaeus, 1767 (nomen rejiciendum) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Restionaceae (Family)

Resto
     Resto Schintlmeister, 1997 accepted as Resto Schintlmeister, 1997 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Notodontidae (Family)
     Resto Schintlmeister, 2001 accepted as Resto Schintlmeister, 2001 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Notodontidae (Family)

Retaster
     Retaster Sladen, 1889 accepted as Retaster Sladen, 1889 (unassessed) · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Velatida (Order) > Pterasteridae (Family)
 Retaster Perrier, 1878 accepted as Pteraster Müller & Troschel, 1842 (Subgenus according to Fisher (1940).) · Animalia (Kingdom) > Echinodermata (Phylum) > Asteroidea (Class) > Velatida (Order) > Pterasteridae (Family)

Retepora
     Retepora Soldani, 1795 accepted as Retepora Soldani, 1795 (unassessed) · Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
 Retepora Lamarck, 1801 accepted as Reteporella Busk, 1884 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Phidoloporidae (Family)

Reteporella
     Reteporella Busk, 1884 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Phidoloporidae (Family)
 Reteporella Simpson, 1894 † accepted as Reteporidra Nickles & Bassler, 1900 † · Animalia (Kingdom) > Bryozoa (Phylum) > Stenolaemata (Class) > Fenestrida (Order) > Polyporidae (Family)

Retha
     Retha Cox, 1965 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Hippuritida (Order) > Hippuritida (awaiting allocation) (Family)
 Retha Clarke, 1978 accepted as Nagehana Özdikmen, 2009 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Oecophoridae (Family)

Retialetes
     Retialetes S.C.D. Sah & S.K. Dutta, 1966 † accepted as Retialetes S.C.D. Sah & S.K. Dutta, 1966 † (unassessed) · Plantae (Kingdom) > Chlorophyta (Phylum) > (Class) > (Order) > Prasinophytina (awaiting allocation) (Family)
     Retialetes F.L. Staplin, 1960 † · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)

Reticella
     Reticella Ehrenberg, 1872 † accepted as Reticella Ehrenberg, 1872 † (unassessed) · Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Reticella Gray, 1870 accepted as Reticella Gray, 1870 (unassessed) · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Reticulana
     Reticulana Bethune-Baker, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
 Reticulana Kanjilal & Singh, 1973 † accepted as Indoculana Kanjilal & Singh, 1980 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Nuculida (Order) > Nuculida (awaiting allocation) (Family)

Reticularia
     Reticularia M'Coy in Griffith, 1844 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Reticulariidae (Family)
 Reticularia Thomson, 1853 accepted as Filellum Hincks, 1869 (name preoccupied by Reticularia McCoy 1844 [Brachiopoda]) · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Lafoeidae (Family)
 Reticularia Baumgarten, 1790 accepted as Lobaria (J.C.D. Schreber) G.F. Hoffmann, 1796 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Peltigerales (Order) > Lobariaceae (Family)
 Reticularia M.O.P. Iyengar, 1975 accepted as · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Sphaeropleales (Order) > Radiococcaceae (Family)
     Reticularia Bulliard, 1788 · Protozoa (Kingdom) > Amoebozoa (Phylum) > Myxogastrea (Class) > Liceida (Order) > Enteridiidae (Family)

Reticulata
 Reticulata Frierson, 1927 accepted as Reticulata Frierson, 1927 (Misspelling) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Reticulata Wagner, 1905 accepted as Pleuropoma Möllendorff, 1893 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Cycloneritimorpha (Order) > Helicinidae (Family)

Reticulatasporites
     Reticulatasporites A.C. Ibrahim, 1933 † accepted as Reticulatasporites A.C. Ibrahim, 1933 † (unassessed) · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)
 Reticulatasporites G. Leschik in R. Kräusel & G. Leschik, 1956 † accepted as · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)

Reticulina
     Reticulina Rafinesque, 1815 accepted as Reticulina Rafinesque, 1815 · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
 Reticulina Neckaja, 1973 † accepted as Aniluciter Schallreuter, 1975 † (Homonym of Reticulina (Bassiouni, 1969a) Boutakiout, Donze & Oumalch, 1982 A) · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Ostracoda (awaiting allocation) (Order) > Ostracoda (awaiting allocation) (Family)
     Reticulina Radtke, 1991 † accepted as Reticulina Radtke, 1991 † (unassessed) · Animalia (Kingdom) > Problematica (Phylum) > Problematica (awaiting allocation) (Class) > Problematica (awaiting allocation) (Order) > Problematica (awaiting allocation) (Family)
 Reticulina Cuvillier, Bonnefous, Hamaoui & Tixier, 1970 † accepted as Reticulinella Cuvillier, Bonnefous, Hamaoui & Tixier, 1970 † · Chromista (Kingdom) > Retaria (Phylum) > Foraminifera incertae sedis (Class) > Foraminifera (awaiting allocation) (Order) > Foraminifera (awaiting allocation) (Family)
 Reticulina Cleve, 1901 accepted as Peltidium Philippi, 1839 (synonym) · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Peltidiidae (Family)
     Reticulina Bassiouni, 1969 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Trachyleberididae (Family)

Reticulopteris
 Reticulopteris A.I. Kiritchkova, 1960 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Pteridophyta/Pteridospermophyta (unclassified foliage) (Class) > Pteridophyta/Pteridospermophyta (awaiting allocation) (Order) > Pteridophytes/Pteridosperms (awaiting allocation) (Family)
     Reticulopteris Gothan, 1941 † accepted as Reticulopteris Gothan, 1941 † (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Pteridospermopsida (Class) > Pteridospermopsida (awaiting allocation) (Order) > Pteridospermopsida (awaiting allocation) (Family)

Reticulum
     Reticulum Dai, Li & Chen, 2006 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
     Reticulum C. de Stefani, 1879 † accepted as Reticulum C. de Stefani, 1879 † (unassessed) · Plantae (Kingdom) > Algae (awaiting allocation) (Phylum) > Algae (awaiting allocation) (Class) > Algae (awaiting allocation) (Order) > Algae (awaiting allocation) (Family)
     Reticulum Schröder, Medioli & Scott, 1989 † · Chromista (Kingdom) > Retaria (Phylum) > Monothalamea (Class) > Astrorhizida (Order) > Komokiidae (Family)

Retifusus
     Retifusus Dall, 1916 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Buccinidae (Family)
     Retifusus Iredale, 1929 accepted as Retifusus Iredale, 1929 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Retiinaperturites
 Retiinaperturites Y.K. Mathur, 1966 † accepted as · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)
     Retiinaperturites G.S. Puri, 1963 † accepted as Retiinaperturites G.S. Puri, 1963 † (unassessed) · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)

Retinodendron
 Retinodendron Renault, 1892 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Gymnospermae (awaiting allocation) (Class) > Gymnospermae (awaiting allocation) (Order) > Gymnospermae (awaiting allocation) (Family)
 Retinodendron Korthals in Temminck, 1840 accepted as Vatica Linnaeus, 1771 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Dipterocarpaceae (Family)
 Retinodendron J.C. Zenker, 1833 † accepted as Cupressinoxylon Göppert, 1850 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Pinales (Order) > Cupressaceae (Family)

Retiperiporites
     Retiperiporites G.S. Puri, 1963 † accepted as Retiperiporites G.S. Puri, 1963 † (unassessed) · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)
 Retiperiporites G.F.W. Herngreen, 1975 † accepted as · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)

Retites
     Retites McCaleb, 1964 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Goniatitida (Order) > Goniatitida (awaiting allocation) (Family)
     Retites Řehoř, 1965 † accepted as Retites Řehoř, 1965 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)

Retzia
     Retzia King, 1850 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Retziidae (Family)
     Retzia Thunberg, 1776 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Stilbaceae (Family)

Reubenella
     Reubenella Lochman, 1966 † accepted as Reubenella Lochman, 1966 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
 Reubenella Sohn, 1968 † accepted as Bektasia Özdikmen, 2010 † (preoccupied by Reubenella Lochman, 1966) · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Cavellinidae (Family)

Reussella
     Reussella Galloway, 1933 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Reussellidae (Family)
 Reussella Bandel, 1998 † accepted as Scissurella d'Orbigny, 1824 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Vetigastropoda (Order) > Scissurellidae (Family)

Reussia
     Reussia Neviani, 1895 † · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Bryocryptellidae (Family)
     Reussia M'Coy, 1854 accepted as Reussia M'Coy, 1854 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
 Reussia K.B. Presl in Sternberg, 1838 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Osmundales (Order) > Osmundaceae (Family)
 Reussia A.W. Dennstedt, 1818 accepted as Paederia Linnaeus, 1767 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
 Reussia Schwager, 1877 † accepted as Reussella Galloway, 1933 (Homonym) · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Reussellidae (Family)
     Reussia Maksimova, 1971 † accepted as Reussiana Snajdr, 1987 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Phacopida (Order) > Phacopida (awaiting allocation) (Family)
 Reussia Maksimova, 1972 † accepted as Reussiana Snajdr, 1987 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Phacopida (Order) > Phacopida (awaiting allocation) (Family)
 Reussia Endlicher, 1836 accepted as Pontederia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Commelinales (Order) > Pontederiaceae (Family)
 Reussia Duchassaing & Michelotti, 1860 accepted as Madracis Milne Edwards & Haime, 1849 (synonym) · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Scleractinia (Order) > Astrocoeniidae (Family)

Reussina
     Reussina Neviani, 1896 · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Membraniporidae (Family)
     Reussina Grzymium, 1896 accepted as Reussina Grzymium, 1896 (unassessed) · Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
 Reussina Kluge, 1962 accepted as Reussinella Gordon, 2009 (homonym) · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Microporidae (Family)

Reuterella
     Reuterella Enderlein, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Psocoptera (Order) > Elipsocidae (Family)
 Reuterella Timoshkin, 2004 accepted as Mariareuterella Timoshkin & Grygier, 2005 (preoccupied) · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Rhabdocoela (Order) > Rhynchokarlingiidae (Family)

Reuteria
     Reuteria Puton, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)
     Reuteria Signoret, 1879 accepted as Reuteria Signoret, 1879 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Jassidae (Family)

Reyesacris
     Reyesacris Descamps & Amedegnato, 1989 accepted as Reyesacris Descamps & Amedegnato, 1989 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)
     Reyesacris Fontana, Buzzetti & Mariño-Pérez, 2011 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)

Reyesiella
     Reyesiella Alonso-Zarazaga & Lyal, 1999 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Reyesiella P.A. Saccardo, 1917 accepted as Anthomycetella H. Sydow & P. Sydow, 1916 · Fungi (Kingdom) > Basidiomycota (Phylum) > Pucciniomycetes (Class) > Pucciniales (Order) > Raveneliaceae (Family)

Reymondia
     Reymondia Bourguignat, 1885 accepted as Reymondia Bourguignat, 1885 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Thiaridae (Family)
 Reymondia G.K.W.H. Karsten ex C.E.O. Kuntze, 1804 accepted as Myoxanthus Poeppig & Endlicher, 1836 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Reynaudia
     Reynaudia Kunth, 1829 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
     Reynaudia Brandt, 1835 accepted as Reynaudia Brandt, 1835 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Reynoldsia
     Reynoldsia Malloch, 1934 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Muscidae (Family)
     Reynoldsia A. Gray, 1854 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Araliaceae (Family)

Rhabdammina
     Rhabdammina Sars, 1869 · Chromista (Kingdom) > Retaria (Phylum) > Monothalamea (Class) > Astrorhizida (Order) > Rhabdamminidae (Family)
 Rhabdammina Brady, 1879 accepted as Rhabdammina Sars, 1869 (later usage) · Chromista (Kingdom) > Retaria (Phylum) > Monothalamea (Class) > Astrorhizida (Order) > Rhabdamminidae (Family)

Rhabdiodon
 Rhabdiodon Ameghino, 1889 † accepted as Rhabdiodon Ameghino, 1889 † (Misspelling) · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)
     Rhabdiodon Ameghino, 1882 † accepted as Rhabdiodon Ameghino, 1882 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)

Rhabdites
     Rhabdites Haan, 1825 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Orthocerida (Order) > Orthocerida (awaiting allocation) (Family)
     Rhabdites Zhuravleva, 1978 † accepted as Rhabdites Zhuravleva, 1978 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Cephalopoda (awaiting allocation) (Order) > Cephalopoda (awaiting allocation) (Family)
 Rhabdites Burgers, 1911 accepted as Rhabditis Dujardin, 1845 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Rhabditida (Order) > Rhabditidae (Family)

Rhabditis
     Rhabditis · Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > Fungi (awaiting allocation) (Class) > Fungi (awaiting allocation) (Order) > Fungi (awaiting allocation) (Family)
     Rhabditis Dujardin, 1845 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Rhabditida (Order) > Rhabditidae (Family)
     Rhabditis Osche, 1952 accepted as Rhabditis Osche, 1952 (unassessed) · Animalia (Kingdom) > Nematoda (Phylum) > Nematoda (awaiting allocation) (Class) > Nematoda (awaiting allocation) (Order) > Nematoda (awaiting allocation) (Family)

Rhabditoides
     Rhabditoides Rahm, 1928 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Rhabditida (Order) > Rhabditidae (Family)
     Rhabditoides Goodey, 1929 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Rhabditida (Order) > Rhabditidae (Family)

Rhabdium
     Rhabdium C.F.W. Wallroth, 1833 · Chromista (Kingdom) > Ochrophyta (Phylum) > Bacillariophyceae (Class) > Bacillariophyceae (awaiting allocation) (Order) > Bacillariophyceae (awaiting allocation) (Family)
     Rhabdium Schaum, 1859 accepted as Rhabdium Schaum, 1859 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Rhabdium Schrammen, 1936 † accepted as Octobrum de Laubenfels in Moore, 1955 † · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Hexactinosa (Order) > Hexactinosa (awaiting allocation) (Family)
 Rhabdium P.A. Dangeard, 1903 accepted as Harpochytrium Lagerheim, 1890 · Fungi (Kingdom) > Chytridiomycota (Phylum) > Monoblepharidomycetes (Class) > Monoblepharidales (Order) > Harpochytriaceae (Family)

Rhabdocalyptus
     Rhabdocalyptus Schulze, 1886 · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Lyssacinosida (Order) > Rossellidae (Family)
     Rhabdocalyptus Schulze, 1885 accepted as Rhabdocalyptus Schulze, 1886 · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Lyssacinosida (Order) > Rossellidae (Family)

Rhabdoceras
     Rhabdoceras Hauer, 1860 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ceratitida (Order) > Choristoceratidae (Family)
 Rhabdoceras Ulmer, 1905 accepted as Georgium Fischer, 1964 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Calamoceratidae (Family)

Rhabdochonoides
 Rhabdochonoides Janiszewska, 1955 accepted as Rhabdochona Railliet, 1916 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Rhabdochonidae (Family)
 Rhabdochonoides Rahemo & Kasim, 1979 accepted as Rhabdochona Railliet, 1916 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Rhabdochonidae (Family)

Rhabdocnemis
     Rhabdocnemis Pomel, 1872 † accepted as Rhabdocnemis Pomel, 1872 † (unassessed) · Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)
     Rhabdocnemis Franciscolo, 1956 accepted as Rhabdocnemis Franciscolo, 1956 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scraptiidae (Family)
 Rhabdocnemis Faust, 1894 accepted as Rhabdoscelus Marshall, 1943 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dryophthoridae (Family)

Rhabdocolius
     Rhabdocolius Bonaparte, 1854 accepted as Rhabdocolius Bonaparte, 1854 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Rhabdocolius Bonaparte, 1854 accepted as Rhabdocolius Bonaparte, 1854 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Rhabdocyathus
     Rhabdocyathus von Toll, 1899 † accepted as Rhabdocyathus von Toll, 1899 † (unassessed) · Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)
 Rhabdocyathus Brook, 1893 accepted as Acropora Oken, 1815 · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Scleractinia (Order) > Acroporidae (Family)

Rhabdocyclus
     Rhabdocyclus Bernard & Lecal, 1960 accepted as Rhabdocyclus Bernard & Lecal, 1960 (unassessed) · Chromista (Kingdom) > Haptophyta (Phylum) > Coccolithophyceae (Class) > Coccolithophyceae (awaiting allocation) (Order) > Coccolithophyceae (awaiting allocation) (Family)
     Rhabdocyclus Lang & Smith, 1939 † · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Rugosa (Order) > Palaeocyclidae (Family)

Rhabdocystis
     Rhabdocystis Boldt, 1910 · Chromista (Kingdom) > Miozoa (Phylum) > Gregarinomorphea (Class) > Arthrogregarida (Order) > Monocystidae (Family)
     Rhabdocystis Arnaud, 1949 · Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Rhabdoderma
     Rhabdoderma Schmidle & Lauterborn, 1900 · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Synechococcales (Order) > Synechococcaceae (Family)
     Rhabdoderma Reis, 1888 † · Animalia (Kingdom) > Chordata (Phylum) > Sarcopterygii (Class) > Coelacanthiformes (Order) > Rhabdodermatidae (Family)
 Rhabdoderma Scheltema, 1989 accepted as Claviderma Scheltema & Ivanov, 2000 (Invalid: junior homonym of Rhabdoderma Reiss, 1888 [Pisces]; Claviderma is a replacement name) · Animalia (Kingdom) > Mollusca (Phylum) > Aplacophora (Class) > Chaetodermatida (Order) > Prochaetodermatidae (Family)

Rhabdodon
 Rhabdodon Ameghino, 1891 † accepted as Rhabdodon Ameghino, 1891 † (Misspelling) · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)
     Rhabdodon Entz, 1884 accepted as Rhabdodon Entz, 1884 (unassessed) · Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Rhabdodon Fleischmann, 1831 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Ornithischia (Order) > Hypsilophodontidae (Family)
     Rhabdodon Matheron, 1869 † accepted as Rhabdodon Matheron, 1869 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Dinosauria (awaiting allocation) (Order) > Dinosauria (awaiting allocation) (Family)

Rhabdogaster
     Rhabdogaster Loew, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)
 Rhabdogaster Metschnikoff, 1867 accepted as Prochaetosoma Baylis & Daubney, 1926 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Desmodorida (Order) > Draconematidae (Family)

Rhabdoglaux
     Rhabdoglaux Bonaparte, 1854 accepted as Ninox Hodgson, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Strigiformes (Order) > Strigidae (Family)
 Rhabdoglaux Bonaparte, 1854 accepted as Ninox Hodgson, 1837 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Strigiformes (Order) > Strigidae (Family)

Rhabdolepis
     Rhabdolepis Marck, 1863 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Palaeonisciformes (Order) > Palaeonisciformes (awaiting allocation) (Family)
     Rhabdolepis Troschel, 1857 accepted as Rhabdolepis Troschel, 1857 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Rhabdolithes
     Rhabdolithes O. Schmidt, 1870 · Chromista (Kingdom) > Haptophyta (Phylum) > Coccolithophyceae (Class) > Rhabdosphaerales (Order) > Rhabdosphaeraceae (Family)
     Rhabdolithes Voeltzkow, 1902 accepted as Rhabdolithes Voeltzkow, 1902 (unassessed) · Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Rhabdomonas
 Rhabdomonas Cohn, 1875 accepted as Rhabdomonas Cohn, 1875 (No current standing in Prokaryotic nomenclature.) · Bacteria (Kingdom) > Proteobacteria (Phylum) > Gammaproteobacteria (Class) > Chromatiales (Order) > Chromatiaceae (Family)
     Rhabdomonas Fresenius, 1858 · Protozoa (Kingdom) > Euglenozoa (Phylum) > Peranemea (Class) > Natomonadida (Order) > Astasiidae (Family)

Rhabdonectes
     Rhabdonectes Bovallius, 1887 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Oxycephalidae (Family)
 Rhabdonectes Houlbert, 1934 accepted as Nebrioporus Régimbart, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dytiscidae (Family)

Rhabdonema
     Rhabdonema Kützing, 1844 · Chromista (Kingdom) > Ochrophyta (Phylum) > Bacillariophyceae (Class) > Rhabdonematales (Order) > Rhabdonemataceae (Family)
 Rhabdonema Leuckart, 1879 accepted as Rhabdias Stiles & Hassall, 1905 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Panagrolaimida (Order) > Rhabdiasidae (Family)

Rhabdophorus
 Rhabdophorus Lefèvre, 1878 accepted as Rhabdopterus Lefèvre, 1885 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Rhabdophorus Agassiz, 1846 accepted as Chaetodon Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Chaetodontidae (Family)

Rhabdophyllum
     Rhabdophyllum Wedekind, 1927 † accepted as Rhabdophyllum Wedekind, 1927 † (unassessed) · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Rhabdophyllum Van Tieghem, 1902 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Ochnaceae (Family)

Rhabdopleura
     Rhabdopleura Dawson, 1870 accepted as Rhabdopleura Dawson, 1870 · Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Rhabdopleura Allman, 1869 · Animalia (Kingdom) > Hemichordata (Phylum) > Pterobranchia (Class) > Rhabdopleurida (Order) > Rhabdopleuridae (Family)
 Rhabdopleura de Koninck, 1881 † accepted as Littorinides Knight, 1937 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Cycloneritimorpha (Order) > Plagiothyridae (Family)

Rhabdopora
     Rhabdopora Lang, 1916 † · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Cheilostomatida (awaiting allocation) (Family)
     Rhabdopora Milne-Edwards & Haime, 1849 accepted as Rhabdopora Milne-Edwards & Haime, 1849 (unassessed) · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Rhabdorhynchus
 Rhabdorhynchus Chevrolat, 1873 accepted as Rhabdorrhynchus Motschoulsky, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Rhabdorhynchus Faust, 1904 accepted as Rhabdorrhynchus Motschoulsky, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Rhabdosella
     Rhabdosella Kofoid & Campbell, 1929 · Chromista (Kingdom) > Ciliophora (Phylum) > Spirotrichea (Class) > Tintinnida (Order) > Tintinnidae (Family)
 Rhabdosella Kofoid & Campbell, 1939 accepted as Rhabdosella Kofoid & Campbell, 1929 (later usage) · Chromista (Kingdom) > Ciliophora (Phylum) > Spirotrichea (Class) > Tintinnida (Order) > Tintinnidae (Family)

Rhabdosoma
     Rhabdosoma White, 1847 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Oxycephalidae (Family)
 Rhabdosoma Günther, 1858 accepted as Rhabdosoma Günther, 1858 (Misspelling) · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)
 Rhabdosoma Adams & White, 1849 accepted as Rhabdosoma White, 1847 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Oxycephalidae (Family)

Rhabdospira
     Rhabdospira Donald, 1898 † accepted as Rhabdospira Donald, 1898 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Rhabdospira Perner in Barrande, 1903 † accepted as Rhabdospira Perner in Barrande, 1903 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Rhabdospira E.G. Pringsheim, 1963 · Protozoa (Kingdom) > Euglenozoa (Phylum) > Peranemea (Class) > Natomonadida (Order) > Rhabdomonadina (awaiting allocation) (Family)

Rhabdospora
     Rhabdospora (Durieu & Mont. ex Sacc.) Sacc., 1884 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Capnodiales (Order) > Mycosphaerellaceae (Family)
     Rhabdospora Laguesse, 1895 · Chromista (Kingdom) > Miozoa (Phylum) > Coccidiomorphea (Class) > Piroplasmida (Order) > Haemohormidiidae (Family)

Rhabdothemis
     Rhabdothemis Handlirsch, 1939 † accepted as Rhabdothemis Handlirsch, 1939 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Odonata (awaiting allocation) (Family)
     Rhabdothemis Handlirsch, 1939 † accepted as Rhabdothemis Handlirsch, 1939 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Odonata (awaiting allocation) (Family)

Rhabdothorax
     Rhabdothorax Kamptner ex Gaarder & Heimdal, 1973 · Chromista (Kingdom) > Miozoa (Phylum) > Dinophyceae (Class) > Peridiniales (Order) > Thoracosphaeraceae (Family)
 Rhabdothorax Latteur & Bousez, 1970 accepted as Rhabdothoracella Aescht, 2001 · Chromista (Kingdom) > Ciliophora (Phylum) > Ciliophora (awaiting allocation) (Class) > Ciliophora (awaiting allocation) (Order) > Ciliophora (awaiting allocation) (Family)

Rhabdotus
     Rhabdotus Townes, 1946 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
     Rhabdotus Chaudoir, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Rhabdotus Bode, 1953 † accepted as Prosynactus Bode, 1953 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Trachypachidae (Family)

Rhabdotylus
     Rhabdotylus Lutz, 1913 accepted as Rhabdotylus Lutz, 1913 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Rhabdotylus Lutz, 1909 † accepted as Rhabdotylus Lutz, 1909 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)

Rhachicerus
 Rhachicerus Walker, 1854 accepted as Rachicerus Walker, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Xylophagidae (Family)
     Rhachicerus Walker, 1848 accepted as Rachicerus Walker, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Xylophagidae (Family)

Rhachidion
 Rhachidion Audinet-Serville, 1834 accepted as Rachidion Audinet-Serville, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Rhachidion Gemminger & Harold accepted as Rachidion Audinet-Serville, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Rhachiodes
 Rhachiodes Gemminger & Harold, 1871 accepted as Myllorhinus Boisduval in d'Urville, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Rhachiodes Schönherr, 1833 accepted as Myllorhinus Boisduval in d'Urville, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Rhachis
     Rhachis Pfeiffer, 1856 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Cerastidae (Family)
 Rhachis Agassiz, 1846 accepted as Rachys Dejean, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Rhachis Cook, 1896 accepted as Rhachodesmus Cook, 1896 · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Polydesmida (Order) > Rhachodesmidae (Family)

Rhachistus
 Rhachistus Dalla Torre, 1898 accepted as Gonatocerus Nees, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Mymaridae (Family)
 Rhachistus Förster, 1847 accepted as Gonatocerus Nees, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Mymaridae (Family)

Rhachites
 Rhachites Gray, 1845 accepted as Tiliqua Gray, 1825 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Scincidae (Family)
     Rhachites Cocteau, 1837 accepted as Tiliqua Gray, 1825 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Scincidae (Family)

Rhacodes
     Rhacodes Koch in Rosenhauer, 1856 accepted as Rhacodes Koch in Rosenhauer, 1856 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Crustacea (awaiting allocation) (Class) > Crustacea (awaiting allocation) (Order) > Crustacea (awaiting allocation) (Family)
 Rhacodes Ruschka in Enslin, 1922 accepted as Neorhacodes Hedicke, 1922 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)

Rhacodia
     Rhacodia Hübner, 1825 accepted as Rhacodia Hübner, 1825 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Rhacodia Herrich-Schäffer in Panzer, 1838 accepted as Rhacodia Herrich-Schäffer in Panzer, 1838 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Rhacolepis
     Rhacolepis Agassiz, 1844 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Amiiformes (Order) > Dorypteridae (Family)
     Rhacolepis Agassiz, 1841 † accepted as Rhacolepis Agassiz, 1841 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Amiiformes (Order) > Dorypteridae (Family)

Rhacoma
 Rhacoma Adanson, 1763 accepted as Chartolepis Cassini in F. Cuvier, 1826 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Rhacoma McClelland & Griffith, 1842 accepted as Racoma McClelland & Griffith in McClelland, 1842 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cypriniformes (Order) > Cyprinidae (Family)
 Rhacoma Linnaeus, 1759 accepted as Crossopetalum P. Browne, 1756 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Celastrales (Order) > Celastraceae (Family)

Rhaconotus
     Rhaconotus Ruthe, 1854 accepted as Rhaconotus Ruthe, 1854 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Braconidae (Family)
 Rhaconotus Gerstaecker, 1856 accepted as Metaplax H. Milne Edwards, 1852 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Grapsidae (Family)

Rhacophorus
     Rhacophorus Kuhl & van Hasselt, 1822 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Rhacophoridae (Family)
     Rhacophorus Koch, 1847 accepted as Rhacophorus Koch, 1847 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Polydesmida (Order) > Polydesmidae (Family)

Rhacostoma
     Rhacostoma L. Agassiz, 1851 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Leptothecata (Order) > Aequoreidae (Family)
     Rhacostoma Berg, 1898 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Nitidulidae (Family)

Rhactorhynchia
     Rhactorhynchia Buckman, 1917 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Rhynchonellidae (Family)
     Rhactorhynchia Buckman, 1914 † accepted as Rhactorhynchia Buckman, 1917 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Rhynchonellidae (Family)

Rhadamanthus
     Rhadamanthus Burr, 1907 accepted as Rhadamanthus Burr, 1907 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Dermaptera (Order) > Dermaptera (awaiting allocation) (Family)
 Rhadamanthus R.A. Salisbury, 1866 accepted as Drimia N.J. Jacquin ex Willdenow, 1799 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Asparagaceae (Family)

Rhadia
 Rhadia accepted as Raddisia P. Leandro de Sacramento, 1821 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Celastrales (Order) > Celastraceae (Family)
 Rhadia Pascoe, 1867 accepted as Sybra Pascoe, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Rhadina
     Rhadina Billberg, 1828 accepted as Rhadina Billberg, 1828 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Rhadina Kowarz, 1893 accepted as Rhadina Kowarz, 1893 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Rhadina Förster, 1868 accepted as Rhadina Förster, 1868 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Rhadine
     Rhadine Simon, 1882 accepted as Rhadine Simon, 1882 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
     Rhadine Le Conte, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Rhadine Baudi, 1874 accepted as Petalium Leconte, 1861 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptinidae (Family)

Rhadinocythere
     Rhadinocythere Hart, 1962 · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Entocytheridae (Family)
 Rhadinocythere Bate, 1975 † accepted as Aitkenicythere Bate, 1976 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Entocytheridae (Family)

Rhadinopasa
     Rhadinopasa Druce, 1880 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Sphingidae (Family)
     Rhadinopasa Karsch, 1891 accepted as Rhadinopasa Karsch, 1891 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Sphingidae (Family)

Rhadinopus
     Rhadinopus S. Moore, 1930 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
     Rhadinopus Faust, 1894 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Rhadinoscopus
     Rhadinoscopus Quate & Quate, 1967 accepted as Rhadinoscopus Quate & Quate, 1967 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Psychodidae (Family)
 Rhadinoscopus Marshall, 1943 accepted as Rhadinoscapus Kolbe, 1911 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Rhadiurgus
     Rhadiurgus Förster, 1868 accepted as Rhadiurgus Förster, 1868 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Rhadiurgus Loew, 1849 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)

Rhaeboceras
     Rhaeboceras Meek, 1876 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Ammonoidea (awaiting allocation) (Family)
     Rhaeboceras Buckman, 1899 † accepted as Rhaeboceras Buckman, 1899 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Rhaeboscelis
     Rhaeboscelis Chevrolat, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
 Rhaeboscelis Gemminger & Harold, 1869 accepted as Pareumerus Deyrolle, 1864 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
 Rhaeboscelis auct. accepted as Paragrilus Saunders, 1871 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
 Rhaeboscelis Lacordaire, 1857 accepted as Euamyia Kerremans, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Rhaestes
     Rhaestes Förster, 1868 accepted as Rhaestes Förster, 1868 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
 Rhaestes Gistel, 1856 accepted as Lignyodes Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Rhagadiolus
     Rhagadiolus S. Vaillant, 1754 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Rhagadiolus Zinn, 1757 accepted as Rhagadiolus Zinn, 1757 (nomen rejiciendum) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Rhagadiolus J.P. de Tournefort ex J.A. Scopoli, 1777 accepted as Rhagadiolus J.P. de Tournefort ex J.A. Scopoli, 1777 (Unavailable name (Tropicos)) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Rhagadiolus J.A. Scopoli, 1754 accepted as Rhagadiolus J.A. Scopoli, 1754 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Rhagadostoma
     Rhagadostoma Körber, 1865 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Coronophorales (Order) > Nitschkiaceae (Family)
     Rhagadostoma Kahl, 1926 · Chromista (Kingdom) > Ciliophora (Phylum) > Prostomatea (Class) > Prorodontida (Order) > Urotrichidae (Family)

Rhagina
     Rhagina Malloch, 1932 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Rhagionidae (Family)
 Rhagina Womersley, 1935 accepted as Anoplocheylus Berlese, 1910 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Pseudocheylidae (Family)

Rhagionempis
     Rhagionempis Rohdendorf, 1938 † accepted as Rhagionempis Rohdendorf, 1938 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
     Rhagionempis Engel, 1943 & 1954 accepted as Rhagionempis Engel, 1943 & 1954 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)

Rhagodera
     Rhagodera Dejean, 1835 accepted as Rhagodera Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Rhagodera Erichson, 1845 accepted as Rhagodera Erichson, 1845 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Rhagodera Mannerheim, 1843 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Zopheridae (Family)

Rhagodia
     Rhagodia Roewer in Bronn, 1933 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Solifugae (Order) > Rhagodidae (Family)
     Rhagodia R. Brown, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)

Rhagostira
     Rhagostira Enderlein, 1942 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Pyrgotidae (Family)
     Rhagostira Borchmann, 1936 accepted as Rhagostira Borchmann, 1936 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Rhamnopsis
     Rhamnopsis Matsumura, 1931 accepted as Rhamnopsis Matsumura, 1931 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Rhamnopsis H.G.L. Reichenbach, 1828 accepted as Flacourtia Commerson ex L'Héritier de Brutelle, 1786 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Salicaceae (Family)

Rhamnusium
     Rhamnusium Latreille in Cuvier, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Rhamnusium Dahl, 1823 accepted as Rhamnusium Latreille in Cuvier, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Rhamnusium Haldeman, 1847 accepted as Centrodera Leconte, 1850 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Rhamphiculus
     Rhamphiculus Bonaparte, 1854 accepted as Rhamphiculus Bonaparte, 1854 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Rhamphiculus Bonaparte, 1854 accepted as Rhamphiculus Bonaparte, 1854 (Misspelling) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Rhamphidia
     Rhamphidia Meigen, 1830 accepted as Rhamphidia Meigen, 1830 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tipulidae (Family)
 Rhamphidia (Lindley) Lindley, 1857 accepted as Hetaeria Blume, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Rhamphidium
     Rhamphidium Mitten, 1869 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Dicranales (Order) > Ditrichaceae (Family)
 Rhamphidium Agassiz, 1846 accepted as Pollicipes Leach, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Pedunculata (Order) > Pollicipedidae (Family)

Rhamphocoris
     Rhamphocoris Kirkaldy, 1901 accepted as Rhamphocoris Kirkaldy, 1901 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Reduviidae (Family)
 Rhamphocoris accepted as Ramphocoris Bonaparte, 1850 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Alaudidae (Family)

Rhamphognathus
     Rhamphognathus Vogt, 1851 accepted as Rhamphognathus Vogt, 1851 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
     Rhamphognathus Agassiz, 1835 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Perciformes (awaiting allocation) (Family)

Rhamphopteryx
 Rhamphopteryx Townsend, 1931 accepted as Mehmetia Özdikmen, 2007 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
 Rhamphopteryx Bryk, 1913 accepted as Plegapteryx Herrich-Schäffer, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)

Rhamphorhynchus
 Rhamphorhynchus Meyer, 1846 † accepted as Rhamphorhynchus Meyer, 1846 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Pterosauria (Order) > Rhamphorhynchidae (Family)
     Rhamphorhynchus L.A. Garay, 1977 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Rhamphosaurus
 Rhamphosaurus Fitzinger, 1843 accepted as Rhamphosaurus Fitzinger, 1843 (Misspelling) · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
     Rhamphosaurus Cope, 1872 † accepted as Rhamphosaurus Cope, 1872 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Rhanis
     Rhanis Heyden, 1837 accepted as Rhanis Heyden, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Rhanis Koch, 1846 accepted as Rhene Thorell, 1869 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)
 Rhanis Leconte, 1853 accepted as Rhanidea Strohecker, 1953 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Endomychidae (Family)
     Rhanis Dejean, 1835 accepted as Rhanidea Strohecker, 1953 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Endomychidae (Family)

Rhantus
     Rhantus Dejean, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dytiscidae (Family)
     Rhantus Agassiz, 1846 accepted as Rhantus Dejean, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dytiscidae (Family)

Rhaphidiophorus
     Rhaphidiophorus Thompson, 1979 † · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Amphinomorpha (Order) > Amphinomorpha (awaiting allocation) (Family)
     Rhaphidiophorus Thompson, 1979 † · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Polychaeta (awaiting allocation) (Order) > Polychaeta incertae sedis (Family)

Rhaphidiopsis
     Rhaphidiopsis Scudder, 1893 † accepted as Rhaphidiopsis Scudder, 1893 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Megasecoptera (Order) > Megasecoptera (awaiting allocation) (Family)
 Rhaphidiopsis accepted as Raphidiopsis F.E. Fritsch & F. Rich, 1929 · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Nostocales (Order) > Nostocaceae (Family)

Rhaphidium
 Rhaphidium Westwood, 1854 † accepted as Rhaphidium Westwood, 1854 † (Misspelling) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Neuroptera (awaiting allocation) (Family)
 Rhaphidium B. Schroeder, 1903 accepted as · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Sphaeropleales (Order) > Selenastraceae (Family)
 Rhaphidium Kützing, 1845 accepted as Ankistrodesmus Corda, 1838 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Sphaeropleales (Order) > Ankistrodesmaceae (Family)

Rhaphidognatha
     Rhaphidognatha Felder, 1862 accepted as Rhaphidognatha Felder, 1862 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Rhaphidognatha Murray, 1857 accepted as Lobodontus Chaudoir, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Rhaphidopalpa
 Rhaphidopalpa Blanchard, 1845 accepted as Rhaphidopalpa Blanchard, 1845 (Misspelling) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Rhaphidopalpa Dejean, 1835 accepted as Rhaphidopalpa Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Rhaphidopalpa Rosenhauer, 1856 accepted as Aulacophora Chevrolat in d'Orbigny, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Rhaphidophora
     Rhaphidophora Audinet-Serville, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Rhaphidophoridae (Family)
     Rhaphidophora Hasskarl, 1842 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Araceae (Family)
 Rhaphidophora Cesati & De Notaris, 1863 accepted as Gaeumannomyces J.A. von Arx & D.L. Olivier, 1952 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Sordariomycetidae incertae sedis (Order) > Magnaporthaceae (Family)
 Rhaphidophora J.A. Long, D.P. Fuge & J. Smith, 1946 accepted as Rhaphidophoropsis S. Blanco & C.E. Wetzel, 2016 (junior homonym) · Chromista (Kingdom) > Ochrophyta (Phylum) > Bacillariophyceae (Class) > Centrales (Order) > Stictodiscaceae (Family)

Rhaphidorhynchus
 Rhaphidorhynchus Finet, 1907 accepted as Microcoelia J. Lindley, 1830 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Rhaphidorhynchus Agassiz, 1846 accepted as Raphirhynchus Dejean, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)

Rhaphidospora
 Rhaphidospora Nees in Wallich, 1832 accepted as Justicia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)
 Rhaphidospora E.M. Fries, 1849 accepted as Gaeumannomyces J.A. von Arx & D.L. Olivier, 1952 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Sordariomycetidae incertae sedis (Order) > Magnaporthaceae (Family)

Rhaphidura
     Rhaphidura Oates, 1883 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Apodiformes (Order) > Apodidae (Family)
     Rhaphidura Bremekamp, 1940 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Rhaphigaster
     Rhaphigaster Laporte, 1832 accepted as Rhaphigaster Laporte, 1832 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Pentatomidae (Family)
 Rhaphigaster Dalla Torre, 1894 accepted as Belonogaster de Saussure, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Vespidae (Family)

Rhaphignathus
     Rhaphignathus Brady, 1875 accepted as Rhaphignathus Brady, 1875 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
 Rhaphignathus Grube, 1859 accepted as Raphignathus Dugès, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Raphignathidae (Family)

Rhaphiodon
     Rhaphiodon Schauer, 1844 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)
     Rhaphiodon Agassiz in Spix & Agassiz, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Characiformes (Order) > Cynodontidae (Family)

Rhaphiolepis
     Rhaphiolepis Lindley, 1820 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Rosaceae (Family)
 Rhaphiolepis Fowler, 1905 accepted as Scomberoides Lacepède, 1801 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Carangidae (Family)

Rhaphirhynchus
     Rhaphirhynchus Dejean, 1834 accepted as Rhaphirhynchus Dejean, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
 Rhaphirhynchus Schönherr, 1840 accepted as Raphirhynchus Dejean, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)

Rhaphis
     Rhaphis Van der Wulp, 1885 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
 Rhaphis Loureiro, 1790 accepted as Chrysopogon Trinius, 1820 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Rhaphium
     Rhaphium Meigen, 1803 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Dolichopodidae (Family)
 Rhaphium White, 1855 accepted as Rhaphuma Pascoe, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Rhaphium Bayan, 1873 † accepted as Eulimella Forbes & MacAndrew, 1846 (invalid: junior homonym of Rhaphium Meigen, 1822 [Diptera]; Baudonia and Belonidium are replacement names) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Pyramidellidae (Family)

Rhaphocerus
 Rhaphocerus Agassiz, 1846 accepted as Raphicerus Smith, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)
 Rhaphocerus Smith, 1827 accepted as Raphicerus Smith, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)

Rhapidophyllum
     Rhapidophyllum H. Wendland & Drude in Drude, 1876 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Arecaceae (Family)
 Rhapidophyllum † accepted as Rhaphidophyllum Lindström, 1882 · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Rhaponticum
     Rhaponticum S. Vaillant, 1754 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Rhaponticum A. von Haller, 1742 accepted as Rhaponticum A. von Haller, 1742 (Pre-starting-point name) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Rhaponticum M. Adanson, 1763 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Rhaponticum Ludwig, 1757 accepted as Rhaponticum S. Vaillant, 1754 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Rhathymodes
 Rhathymodes Turner, 1911 accepted as Opsirhina Walker, 1855 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lasiocampidae (Family)
 Rhathymodes Engel, Michener & Rightmyer, 2004 accepted as Nanorhathymus Engel, Michener & Rightmyer, 2004 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Apidae (Family)

Rhathymus
     Rhathymus Lepeletier & Serville, 1828 accepted as Rhathymus Lepeletier & Serville, 1828 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Apidae (Family)
 Rhathymus Gemminger & Harold, 1868 accepted as Rathymus Dejean, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Rhathymus Brullé in Audouin & Brullé, 1834 accepted as Parastrigia Maindron, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Rhax
     Rhax Lane & Thomas, 1978 † accepted as Rhax Lane & Thomas, 1978 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Corynexochida (Order) > Styginidae (Family)
 Rhax Hermann, 1804 accepted as Rhagodes Pocock, 1897 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Solifugae (Order) > Rhagodidae (Family)

Rhea
     Rhea Brisson, 1760 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Rheiformes (Order) > Rheidae (Family)
 Rhea Möhring, 1758 accepted as Rhea Brisson, 1760 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Rheiformes (Order) > Rheidae (Family)

Rhechodes
 Rhechodes Agassiz, 1846 accepted as Rechodes Erichson, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Zopheridae (Family)
 Rhechodes Gemminger & Harold, 1868 accepted as Rechodes Erichson, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Zopheridae (Family)

Rhembus
 Rhembus Agassiz, 1846 accepted as Entyus Schoenherr, 1826 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Rhembus Agassiz, 1846 accepted as Diplocheila Brullé, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Rhembus Gemminger & Harold, 1858 accepted as Diplocheila Brullé, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Rhembus Fischer de Waldheim, 1829 accepted as Entyus Schoenherr, 1826 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Rhenania
     Rhenania Waagen, 1907 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Trigoniida (Order) > Trigoniida (awaiting allocation) (Family)
     Rhenania H.-J. Schweitzer, 1962 † accepted as Rhenania H.-J. Schweitzer, 1962 † (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Pinopsida (Class) > Pinopsida (awaiting allocation) (Order) > Pinopsida (awaiting allocation) (Family)
 Rhenania Fuchs, 1915 † accepted as Rhenanomya La Rocque, 1969 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)

Rhenea
     Rhenea Saalmüller, 1884 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Notodontidae (Family)
 Rhenea Hutton in Hedley & Suter, 1893 accepted as Delos Hutton, 1904 (Invalid. Not Rhenea Saalmueller, 1884) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Rhytididae (Family)

Rheocamptus
 Rheocamptus Borutsky, 1952 accepted as Bryocamptus Chappuis, 1929 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Canthocamptidae (Family)
     Rheocamptus Borutsky, 1952 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Canthocamptidae (Family)
     Rheocamptus Borutzky, 1948 accepted as Rheocamptus Borutsky, 1952 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Canthocamptidae (Family)

Rheophagus
 Rheophagus Korotyaev, 1980 accepted as Odontocoeliodes Colonnelli, 1979 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Rheophagus Agassiz, 1846 accepted as Reophax de Montfort, 1808 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Lituolida (Order) > Hormosinidae (Family)

Rhesus
 Rhesus accepted as Rhaesus Motschoulsky, 1875 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Rhesus Lesson, 1839 accepted as Macaca Lacepède, 1799 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Cercopithecidae (Family)
 Rhesus Lesson, 1840 accepted as Macaca Lacepède, 1799 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Cercopithecidae (Family)

Rhexia
     Rhexia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Melastomataceae (Family)
     Rhexia Stål, 1867 accepted as Rhexia Stål, 1867 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Rhianus
     Rhianus Pascoe, 1889 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Rhianus Thorell, 1890 accepted as Rhianodes Raven, 1986 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Barychelidae (Family)

Rhicnoda
     Rhicnoda Brunner, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Blaberidae (Family)
 Rhicnoda Finot, 1897 accepted as Homalopteryx Brunner von Wattenwyl, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Blaberidae (Family)

Rhicnoessa
     Rhicnoessa Loew, 1862 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Canacidae (Family)
 Rhicnoessa Williston, 1893 accepted as Tethina Haliday, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Canacidae (Family)

Rhigmaphorus
     Rhigmaphorus Dejean, 1833 accepted as Rhigmaphorus Dejean, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Rhigmaphorus Guérin-Méneville, 1843 accepted as Eucalosoma Laporte in Brullé, 1840 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Eucnemidae (Family)

Rhigus
     Rhigus Schönherr, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Rhigus Germar, 1824 accepted as Rhigus Schönherr, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Rhimphalea
     Rhimphalea Förster, 1868 accepted as Rhimphalea Förster, 1868 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Rhimphalea Lederer, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Crambidae (Family)
 Rhimphalea Heine & Reichenow, 1890 accepted as Stiltia G.R. Gray, 1855 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Charadriiformes (Order) > Glareolidae (Family)

Rhina
     Rhina Bloch & Schneider, 1801 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Rajiformes (Order) > Rhinobatidae (Family)
 Rhina Schaeffer, 1760 accepted as Squatina Duméril, 1805 (synonym) · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Squatiniformes (Order) > Squatinidae (Family)
 Rhina Walbaum, 1792 accepted as Squatina Duméril, 1805 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Squatiniformes (Order) > Squatinidae (Family)
 Rhina Latreille, 1806 accepted as Rhinostomus Rafinesque, 1815 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dryophthoridae (Family)
 Rhina Latreille, 1802 accepted as Magdalis Germar, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Rhina Rafinesque, 1810 accepted as Squatina Duméril, 1805 (synonym) · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Squatiniformes (Order) > Squatinidae (Family)
 Rhina Gill, 1862 (ex Klein) accepted as Squatina Duméril, 1805 (synonym) · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Squatiniformes (Order) > Squatinidae (Family)
 Rhina Klein, 1776 accepted as Squatina Duméril, 1805 (synonym) · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Squatiniformes (Order) > Squatinidae (Family)

Rhinacanthus
     Rhinacanthus C.G.D. Nees in Wallich, 1832 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)
 Rhinacanthus Agassiz, 1846 accepted as Rhinecanthus Swainson, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Tetraodontiformes (Order) > Balistidae (Family)

Rhinacarus
     Rhinacarus Castro, 1948 accepted as Rhinacarus Castro, 1948 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
 Rhinacarus Nehring, 1884 accepted as Halarachne Allman, 1847 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opilioacarida (Order) > Opilioacaridae (Family)

Rhinactina
     Rhinactina Willdenow, 1807 accepted as Rhinactina Willdenow, 1807 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Rhinactina Lessing, 1831 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Rhinapion
     Rhinapion Beguin-Billecocq, 1905 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
 Rhinapion Motschulsky, 1870 accepted as Oxystoma Duméril, 1806 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)

Rhinaspis
 Rhinaspis Bonaparte, 1832 accepted as Rhinaspis Bonaparte, 1832 (Misspelling) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Rhinaspis Perty, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Rhinaspis Fitzinger, 1843 accepted as Rhinaspis Fitzinger, 1843 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)
     Rhinaspis Remelé, 1885 † accepted as Rhinaspis Remelé, 1885 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Rhinaster
 Rhinaster Gray in Gerrard, 1862 accepted as Diceros Gray, 1821 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Perissodactyla (Order) > Rhinocerotidae (Family)
 Rhinaster Wagler, 1830 accepted as Condylura Illiger, 1811 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Insectivora (Order) > Talpidae (Family)

Rhinella
     Rhinella Fitzinger, 1826 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Bufonidae (Family)
 Rhinella Bory, 1828 accepted as Rhinella Bory, 1828 (Misspelling) · Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Rhinellus
 Rhinellus Bonaparte, 1831 accepted as Rhinellus Bonaparte, 1831 (Misspelling) · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Bufonidae (Family)
     Rhinellus Agassiz, 1835 † accepted as Rhinellus Agassiz, 1835 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Aulopiformes (Order) > Ichthyotringidae (Family)

Rhinepera
 Rhinepera Karling, 1983 accepted as Cheliplana de Beauchamp, 1927 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Neorhabdocoela (Order) > Karkinorhynchidae (Family)
     Rhinepera Meixner, 1928 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Rhabdocoela (Order) > Cheliplanidae (Family)

Rhinippus
     Rhinippus Burmeister, 1875 † accepted as Rhinippus Burmeister, 1875 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)
 Rhinippus Werner, 1906 accepted as Barrussus Roewer, 1928 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Solifugae (Order) > Karschiidae (Family)

Rhinium
     Rhinium Townes, 1966 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
     Rhinium Schreber, 1791 accepted as Rhinium Schreber, 1791 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Dilleniales (Order) > Dilleniaceae (Family)

Rhinobates
 Rhinobates Bedel, 1884 accepted as Larinus Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Rhinobates Swainson, 1838 accepted as Rhinobatos Linck, 1790 (misspelling) · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Rajiformes (Order) > Rhinobatidae (Family)

Rhinobatos
     Rhinobatos Linck, 1790 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Rajiformes (Order) > Rhinobatidae (Family)
 Rhinobatos Klein, 1776 accepted as Rhinobatos Linck, 1790 (synonym) · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Rajiformes (Order) > Rhinobatidae (Family)

Rhinobatus
 Rhinobatus Walbaum, 1792 accepted as Rhinobatos Linck, 1790 (misspelling) · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Rajiformes (Order) > Rhinobatidae (Family)
 Rhinobatus Germar, 1817 accepted as Larinus Dejean, 1821 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Rhinobatus Bloch & Schneider, 1801 accepted as Rhinobatos Linck, 1790 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Rajiformes (Order) > Rhinobatidae (Family)

Rhinobolus
     Rhinobolus Blackburn, 1889 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Rhinobolus Hall & Clarke, 1892 † accepted as Rhynobolus Hall, 1871 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Craniata (Class) > Trimerellida (Order) > Trimerellidae (Family)

Rhinocephalus
     Rhinocephalus Casier, 1966 † · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Gadiformes (Order) > Gadiformes (awaiting allocation) (Family)
     Rhinocephalus Agassiz, 1844 † accepted as Rhinocephalus Agassiz, 1844 † · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Rhinoceromys
     Rhinoceromys Tyutkova, 2003 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Cricetidae (Family)
     Rhinoceromys Tyutkova, 2005 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Cricetidae (Family)

Rhinoceros
     Rhinoceros Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Perissodactyla (Order) > Rhinocerotidae (Family)
     Rhinoceros Herrmannsen, 1852 accepted as Rhinoceros Herrmannsen, 1852 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Rhinochilus
     Rhinochilus Hort., 1972 accepted as Rhinochilus Hort., 1972 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Rhinochilus Yarrow, 1882 accepted as Rhinocheilus Baird & Girard, 1853 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)

Rhinocladiella
     Rhinocladiella Nannfeldt in E. Melin & Nannfeldt, 1934 · Fungi (Kingdom) > Ascomycota (Phylum) > Eurotiomycetes (Class) > Chaetothyriales (Order) > Herpotrichiellaceae (Family)
 Rhinocladiella O.P. Kamyschko, 1960 accepted as Chrysosporium Corda in Sturm, 1833 · Fungi (Kingdom) > Ascomycota (Phylum) > Eurotiomycetes (Class) > Onygenales (Order) > Onygenaceae (Family)

Rhinoclemys
     Rhinoclemys McDowell, 1964 accepted as Rhinoclemys McDowell, 1964 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Testudines (Order) > Testudines (awaiting allocation) (Family)
 Rhinoclemys Gray, 1863 accepted as Rhinoclemmys Fitzinger, 1835 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Testudines (Order) > Bataguridae (Family)

Rhinoderma
     Rhinoderma Duméril & Bibron, 1841 · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Rhinodermatidae (Family)
 Rhinoderma † accepted as Rhineoderma Koninck, 1883 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neritimorpha incertae sedis (Order) > Platyceratidae (Family)

Rhinogale
 Rhinogale Gray, 1865 accepted as Rhynchogale Thomas, 1894 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Herpestidae (Family)
 Rhinogale Gloger, 1841 accepted as Melogale Geoffroy in Bélanger, 1831 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Mustelidae (Family)

Rhinognathus
 Rhinognathus Davis, 1887 † accepted as Scapanorhynchus Woodward, 1889 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Lamniformes (Order) > Mitsukurinidae (Family)
 Rhinognathus Fairmaire, 1873 accepted as Leptolepurus Desbrochers, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Rhinogryphus
     Rhinogryphus Baird & Brewer, 1874 accepted as Rhinogryphus Baird & Brewer, 1874 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Rhinogryphus Sharp, 1894 accepted as Rhinogrypus Roelofs, 1892 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dryophthoridae (Family)

Rhinolaccus
 Rhinolaccus Guérin-Ménéville in Duperry, 1838 accepted as Rhynolaccus Guérin-Ménéville in Duperry, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Rhinolaccus Schönherr, 1833 accepted as Micromyrmex Sleeper, 1953 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Rhinomacer
 Rhinomacer Fabricius, 1781 accepted as Cimberis des Gozis, 1881 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Nemonychidae (Family)
 Rhinomacer Geoffroy, 1762 accepted as Attelabus Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Attelabidae (Family)
 Rhinomacer Müller, 1764 accepted as Attelabus Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Attelabidae (Family)
 Rhinomacer Panzer, 1795 accepted as Mycterus Clairville, 1798 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Mycteridae (Family)
 Rhinomacer Olivier, 1807 accepted as Cimberis des Gozis, 1881 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Nemonychidae (Family)

Rhinomya
     Rhinomya Robineau-Desvoidy, 1830 accepted as Rhinomya Robineau-Desvoidy, 1830 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
 Rhinomya Geoffroy St. Hilaire, 1832 accepted as Rhinocrypta Gray, 1841 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Rhinocryptidae (Family)
 Rhinomya A. Adams, 1864 accepted as Rhinoclama Dall & E. A. Smith, 1886 (preoccupied by Rhinomya Robineau-Desvoidy, 1830 [Diptera]) · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Pholadomyoida (Order) > Cuspidariidae (Family)

Rhinomyia
     Rhinomyia Macquart, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
 Rhinomyia Cabanis, 1847 accepted as Rhinocrypta Gray, 1841 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Rhinocryptidae (Family)

Rhinomyobia
     Rhinomyobia Brauer & Bergenstamm, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Rhinomyobia Fain, 1978 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Myobiidae (Family)

Rhinoncus
     Rhinoncus Schönherr, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Rhinoncus O'Brien & Wibmer, 1982 accepted as Pelenomus Thomson, 1859 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Rhinoncus Winkler, 1930 accepted as Rhinoncus Schönherr, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Rhinophidion
     Rhinophidion Steindachner, 1867 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Dibamidae (Family)
     Rhinophidion Fitzinger, 1861 accepted as Rhinophidion Fitzinger, 1861 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Dibamidae (Family)

Rhinophora
     Rhinophora Robineau-Desvoidy, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Rhinophoridae (Family)
 Rhinophora Allen, 1880 † accepted as Mirounga Gray, 1827 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Phocidae (Family)

Rhinophylla
     Rhinophylla Peters, 1865 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Chiroptera (Order) > Phyllostomidae (Family)
 Rhinophylla Gray, 1866 accepted as Hipposideros Gray, 1831 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Chiroptera (Order) > Hipposideridae (Family)

Rhinopoma
 Rhinopoma Oken, 1816 accepted as Rhinopoma Oken, 1816 (Published in a rejected work (ICZN)) · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Chiroptera (Order) > Rhinopomatidae (Family)
     Rhinopoma É. Geoffroy Saint-Hilaire, 1818 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Chiroptera (Order) > Rhinopomatidae (Family)

Rhinops
 Rhinops Gray, 1866 accepted as Carollia Gray, 1838 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Chiroptera (Order) > Phyllostomidae (Family)
     Rhinops Hudson, 1869 accepted as Rhinops Hudson, 1869 (unassessed) · Animalia (Kingdom) > Rotifera (Phylum) > Monogononta (Class) > Ploima (Order) > Trichotriidae (Family)

Rhinopsis
     Rhinopsis Lafresnaye, 1844 accepted as Rhinopsis Lafresnaye, 1844 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Rhinopsis Westwood, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Sphecidae (Family)

Rhinoptera
     Rhinoptera Cuvier, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Myliobatiformes (Order) > Myliobatidae (Family)
 Rhinoptera van Hasselt, 1824 accepted as (Not available) · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Myliobatiformes (Order) > Myliobatidae (Family)

Rhinopteryx
     Rhinopteryx Lacordaire, 1866 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
 Rhinopteryx Niedenzu in Engler & Prantl, 1896 accepted as Rhinopteryx Niedenzu in Engler & Prantl, 1896 (Misspelling) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Malpighiaceae (Family)

Rhinortha
     Rhinortha Walker, 1851 accepted as Rhinortha Walker, 1851 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Fulgoridae (Family)
 Rhinortha Vigors in Raffles, 1830 accepted as Phaenicophaeus Stephens in Shaw, 1815 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Cuculiformes (Order) > Cuculidae (Family)

Rhinosaurus
     Rhinosaurus Fischer de Waldheim, 1847 † accepted as Rhinosaurus Fischer de Waldheim, 1847 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Seymouriamorpha (Order) > Seymouriidae (Family)
     Rhinosaurus Gray, 1845 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Polychrotidae (Family)
     Rhinosaurus Marsh, 1872 † accepted as Rhinosaurus Marsh, 1872 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)

Rhinosceptis
 Rhinosceptis Schaufuss, 1888 accepted as Rhinoscepsis LeConte, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Rhinosceptis Reitter, 1882 accepted as Rhinoscepsis LeConte, 1878 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Rhinosciurus
     Rhinosciurus Blyth, 1856 accepted as Rhinosciurus Blyth, 1856 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Sciuridae (Family)
     Rhinosciurus Gray, 1843 accepted as Rhinosciurus Blyth, 1856 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Sciuridae (Family)

Rhinosimus
     Rhinosimus Latreille, 1802 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Pythidae (Family)
 Rhinosimus Duméril, 1853 accepted as Phimophis Cope, 1860 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)

Rhinostigma
     Rhinostigma Miquel, 1861 accepted as Rhinostigma Miquel, 1861 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Clusiaceae (Family)
 Rhinostigma Elliot, 1913 accepted as Cercopithecus Linnaeus, 1758 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Primates (Order) > Cercopithecidae (Family)

Rhinostoma
 Rhinostoma Fitzinger, 1826 accepted as Rhinostoma Fitzinger, 1826 (Suppressed name (ICZN)) · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Colubridae (Family)
 Rhinostoma Paetel, 1875 accepted as Rhiostoma Benson, 1860 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Architaenioglossa (Order) > Cyclophoridae (Family)

Rhinotmetus
     Rhinotmetus Dejean, 1835 accepted as Rhinotmetus Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
     Rhinotmetus Clark, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Rhinotropis
     Rhinotropis Fairmaire, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Anthribidae (Family)
     Rhinotropis (S.F. Blake) J.R. Abbott, 2011 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Polygalaceae (Family)

Rhinotus
     Rhinotus Cook, 1896 · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Polyzoniida (Order) > Siphonotidae (Family)
 Rhinotus Berthold in Latreille, 1827 accepted as Rhinotia Kirby, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Belidae (Family)

Rhinotyphlops
     Rhinotyphlops Fitzinger, 1843 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Typhlopidae (Family)
 Rhinotyphlops Peters, 1857 accepted as Liotyphlops Peters, 1881 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Anomalepidae (Family)

Rhinus
 Rhinus Pierce, 1916 accepted as Rhinostomus Rafinesque, 1815 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dryophthoridae (Family)
     Rhinus Martens, 1860 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Simpulopsidae (Family)

Rhinusa
     Rhinusa Stephens, 1831 accepted as Rhinusa Stephens, 1831 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Rhinusa Stephens, 1829 accepted as Gymnetron Schönherr, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Rhinyptia
     Rhinyptia Burmeister, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Rhinyptia Dejean, 1833 accepted as Rhinyptia Burmeister, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Rhiphaeolites
     Rhiphaeolites Yanet, 1956 † accepted as Rhiphaeolites Yanet, 1956 † (unassessed) · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Anthozoa (awaiting allocation) (Order) > Anthozoa (awaiting allocation) (Family)
     Rhiphaeolites Yanet in Sokolov, 1955 † accepted as Rhiphaeolites Yanet in Sokolov, 1955 † (unassessed) · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Anthozoa (awaiting allocation) (Order) > Anthozoa (awaiting allocation) (Family)

Rhipidia
     Rhipidia Meigen, 1818 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Limoniidae (Family)
 Rhipidia Markgraf, 1930 accepted as Condylocarpon Desfontaines, 1822 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)

Rhipidigorgia
 Rhipidigorgia Milne-Edwards, 1857 accepted as Rhipidigorgia Milne-Edwards, 1857 (Misspelling) · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Gorgonacea (Order) > Gorgoniidae (Family)
 Rhipidigorgia Valenciennes, 1855 accepted as Gorgonia Linnaeus, 1758 · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Gorgonacea (Order) > Gorgoniidae (Family)

Rhipidium
     Rhipidium Schuchert & Cooper, 1931 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Pentamerida (Order) > Pentameridae (Family)
     Rhipidium Cornu, 1871 · Chromista (Kingdom) > Pseudofungi (Phylum) > Oomycetes (Class) > Rhipidiales (Order) > Rhipidiaceae (Family)
 Rhipidium Wallroth, 1833 accepted as Schizophyllum E.M. Fries, 1815 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Schizophyllaceae (Family)

Rhipidius
     Rhipidius Agassiz, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ripiphoridae (Family)
 Rhipidius Thunberg, 1806 accepted as Ripidius Thunberg, 1806 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ripiphoridae (Family)

Rhipidocera
     Rhipidocera Amsel, 1952 accepted as Rhipidocera Amsel, 1952 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Rhipidocera Agassiz, 1846 accepted as Rhipicera Latreille in Cuvier, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Rhipiceridae (Family)
 Rhipidocera Gemminger & Harold, 1869 accepted as Rhipicera Latreille in Cuvier, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Rhipiceridae (Family)

Rhipidodendron
     Rhipidodendron Kozlowski, 1938 † accepted as Rhipidodendron Kozlowski, 1938 † (unassessed) · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Rhipidodendron F. Stein, 1878 · Chromista (Kingdom) > Cercozoa (Phylum) > Imbricatea (Class) > Spongomonadida (Order) > Spongomonadidae (Family)

Rhipidodendrum
     Rhipidodendrum Kozlowski, 1948 † · Animalia (Kingdom) > Hemichordata (Phylum) > Graptolithina (Class) > Dendroidea (Order) > Dendroidea (awaiting allocation) (Family)
     Rhipidodendrum Willdenow, 1811 accepted as Rhipidodendrum Willdenow, 1811 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Liliales (Order) > Liliaceae (Family)

Rhipidolepis
     Rhipidolepis Agassiz, 1845 accepted as Rhipidolepis Agassiz, 1845 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Rhipidolepis Agassiz, 1845 accepted as Rhipidolepis Agassiz, 1845 · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Rhipidomys
     Rhipidomys Tschudi, 1844 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Cricetidae (Family)
 Rhipidomys Oehlert in Fischer, 1887 † accepted as Rhipidomella Oehlert, 1890 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Orthida (Order) > Rhipidomellidae (Family)

Rhipidophora
     Rhipidophora Kützing, 1844 · Chromista (Kingdom) > Ochrophyta (Phylum) > Bacillariophyceae (Class) > Bacillariophyceae (awaiting allocation) (Order) > Bacillariophyceae (awaiting allocation) (Family)
     Rhipidophora Hübner, 1822 accepted as Rhipidophora Hübner, 1822 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Rhipidophorus
 Rhipidophorus Solier in Gay, 1849 accepted as Cladodes Solier in Gay, 1849 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lampyridae (Family)
 Rhipidophorus Gistl, 1847 accepted as Ripiphorus Bosc, 1791 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ripiphoridae (Family)

Rhipidostoma
 Rhipidostoma Agassiz, 1846 accepted as Haemaphysalis Koch, 1844 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Ixodida (Order) > Ixodidae (Family)
 Rhipidostoma Cunha & Muniz, 1925 accepted as Protohallia Cunha & Muniz, 1927 · Chromista (Kingdom) > Ciliophora (Phylum) > Ciliophora (awaiting allocation) (Class) > Ciliophora (awaiting allocation) (Order) > Ciliophora (awaiting allocation) (Family)

Rhipidura
     Rhipidura Vigors & Horsfield, 1826 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Corvidae (Family)
     Rhipidura Philippi, 1860 accepted as Rhipidura Philippi, 1860 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Rhithrosciurus
 Rhithrosciurus Flower & Lydekker, 1891 accepted as Rheithrosciurus Gray, 1867 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Sciuridae (Family)
 Rhithrosciurus Hose, 1893 accepted as Rheithrosciurus Gray, 1867 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Sciuridae (Family)

Rhitis
     Rhitis Andrassy, 1983 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Rhabditida (Order) > Rhabditidae (Family)
 Rhitis Blainville, 1824 accepted as Triaenophorus Rudolphi, 1793 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Pseudophyllidea (Order) > Triaenophoridae (Family)

Rhizinia
     Rhizinia Hammerschmidt, 1838 · Chromista (Kingdom) > Miozoa (Phylum) > Gregarinomorphea (Class) > Arthrogregarida (Order) > Stylocephalidae (Family)
 Rhizinia Kolb, 1910 † accepted as Yrrhiza de Laubenfels in Moore, 1955 † · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Lithistida (Order) > Lithistida (awaiting allocation) (Family)

Rhizobium
     Rhizobium Frank, 1889 (Approved Lists, 1980) · Bacteria (Kingdom) > Proteobacteria (Phylum) > Alphaproteobacteria (Class) > Rhizobiales (Order) > Rhizobiaceae (Family)
     Rhizobium Targioni-Tozzetti, 1867 accepted as Rhizobium Targioni-Tozzetti, 1867 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Rhizobius
     Rhizobius Burmeister, 1835 accepted as Rhizobius Burmeister, 1835 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aphididae (Family)
     Rhizobius Buckton, 1883 accepted as Rhizobius Buckton, 1883 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Margarodidae (Family)
 Rhizobius Agassiz, 1846 accepted as Rhyzobius Stephens, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coccinellidae (Family)

Rhizocorallium
     Rhizocorallium Zenker, 1836 accepted as Rhizocorallium Zenker, 1836 (unassessed) · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
 Rhizocorallium Felix, 1913 † accepted as Felixium de Laubenfels in Moore, 1955 † · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Dictyoceratida (Order) > Dictyoceratida (awaiting allocation) (Family)

Rhizoglossum
 Rhizoglossum K.B. Presl, 1845 accepted as Ophioglossum Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Ophioglossales (Order) > Ophioglossaceae (Family)
 Rhizoglossum Kylin, 1924 accepted as Radicilingua Papenfuss, 1956 (synonym) · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Ceramiales (Order) > Delesseriaceae (Family)

Rhizoglyphoides
     Rhizoglyphoides Volgin, 1978 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Acaridae (Family)
     Rhizoglyphoides Umbetalina, 1975 accepted as Rhizoglyphoides Volgin, 1978 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Astigmata (Order) > Acaridae (Family)

Rhizoma
 Rhizoma Walker, 1856 accepted as Rhizoma Walker, 1856 (Misspelling) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Rhizoma S.Q. Wu, 1999 † accepted as Rhizoma S.Q. Wu, 1999 † (Not validly published) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Nymphaeales (Order) > Nymphaeaceae (Family)

Rhizomonas
 Rhizomonas van Bruggen et al., 1990 accepted as Rhizomonas van Bruggen et al., 1990 (nomen rejiciendum) · Bacteria (Kingdom) > Proteobacteria (Phylum) > Alphaproteobacteria (Class) > Sphingomonadales (Order) > Sphingomonadaceae (Family)
     Rhizomonas W.S. Kent, 1880 · Protozoa (Kingdom) > Amoebozoa (Phylum) > Variosea (Class) > Phalansteriida (Order) > Rhizomonadidae (Family)

Rhizomyia
     Rhizomyia Zetterstedt, 1849 accepted as Rhizomyia Zetterstedt, 1849 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Anthomyzidae (Family)
     Rhizomyia Kieffer, 1898 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Cecidomyiidae (Family)

Rhizonema
     Rhizonema Cid del Prado Vera, Lownsbery & Maggenti, 1983 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Panagrolaimida (Order) > Heteroderidae (Family)
 Rhizonema G.H.K. Thwaites, 1849 accepted as Dictyonema C.A. Agardh in Kunth, 1822 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricomycetidae incertae sedis (Order) > Agaricomycetidae incertae sedis (Family)
 Rhizonema Clark, 1877 accepted as Corymorpha M. Sars, 1835 (synonym) · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Corymorphidae (Family)

Rhizonium
     Rhizonium Sharp, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Zopheridae (Family)
     Rhizonium Corda, 1845 † accepted as Rhizonium Corda, 1845 † (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Rhizopertha
 Rhizopertha Agassiz, 1846 accepted as Rhyzopertha Stephens, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Bostrichidae (Family)
 Rhizopertha Guerin-Meneville, 1845 accepted as Rhyzopertha Stephens, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Bostrichidae (Family)

Rhizophagus
     Rhizophagus Illiger, 1801 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Monotomidae (Family)
     Rhizophagus Herbst, 1793 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Monotomidae (Family)
 Rhizophagus P.A. Dangeard, 1896 accepted as Glomus L.R. Tulasne & C. Tulasne, 1845 · Fungi (Kingdom) > Glomeromycota (Phylum) > Glomeromycetes (Class) > Glomerales (Order) > Glomeraceae (Family)

Rhizophyllum
     Rhizophyllum Reinsch, 1875 accepted as Rhizophyllum Reinsch, 1875 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Ceramiales (Order) > Delesseriaceae (Family)
     Rhizophyllum Lindström, 1866 † · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Cystiphyllida (Order) > Goniophyllidae (Family)
 Rhizophyllum Newman, 1857 accepted as Phlebodium (R. Brown) J. Smith, 1841 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Polypodiaceae (Family)

Rhizophysa
     Rhizophysa Péron & Lesueur, 1807 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Siphonophorae (Order) > Rhizophysidae (Family)
 Rhizophysa Oken, 1815 accepted as Rhizophysa Oken, 1815 (Misspelling) · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Rhizopora
     Rhizopora Koninck, 1871 † accepted as Rhizopora Koninck, 1871 † · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Rhizopora Koninck, 1872 † accepted as Rhizopora Koninck, 1872 † (unassessed) · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Rhizoprion
     Rhizoprion Jourdan, 1861 accepted as Rhizoprion Jourdan, 1861 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)
 Rhizoprion Ogilby, 1915 accepted as Rhizoprionodon Whitley, 1929 · Animalia (Kingdom) > Chordata (Phylum) > Chondrichthyes (Class) > Carcharhiniformes (Order) > Carcharhinidae (Family)

Rhizosolenia
     Rhizosolenia T. Brightwell, 1858 · Chromista (Kingdom) > Ochrophyta (Phylum) > Bacillariophyceae (Class) > Centrales (Order) > Rhizosoleniaceae (Family)
     Rhizosolenia C.G. Ehrenberg, 1843 † accepted as Rhizosolenia T. Brightwell, 1858 (nomen rejiciendum) · Chromista (Kingdom) > Ochrophyta (Phylum) > Bacillariophyceae (Class) > Centrales (Order) > Rhizosoleniaceae (Family)

Rhizosphaera
     Rhizosphaera Haeckel, 1860 accepted as Rhizosphaera Haeckel, 1860 (unassessed) · Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
     Rhizosphaera L. Mangin & Hariot, 1907 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Pleosporales (Order) > Venturiaceae (Family)

Rhizostoma
 Rhizostoma Lamarck, 1801 accepted as Rhizostoma Cuvier, 1799 · Animalia (Kingdom) > Cnidaria (Phylum) > Scyphozoa (Class) > Rhizostomeae (Order) > Rhizostomatidae (Family)
     Rhizostoma Cuvier, 1799 · Animalia (Kingdom) > Cnidaria (Phylum) > Scyphozoa (Class) > Rhizostomeae (Order) > Rhizostomatidae (Family)

Rhizostylops
 Rhizostylops Silvestri, 1906 accepted as Blattivorus Chobaut, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ripiphoridae (Family)
 Rhizostylops Csiki, 1913 accepted as Blattivorus Chobaut, 1904 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ripiphoridae (Family)

Rhizothrix
     Rhizothrix Sars G.O., 1909 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Rhizotrichidae (Family)
 Rhizothrix Brady & Robertson D., 1876 accepted as Rhizothrix Sars G.O., 1909 (Genus group name made available by Sars (1909)) · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Rhizotrichidae (Family)

Rhizotricha
     Rhizotricha Wolska, 1964 · Chromista (Kingdom) > Ciliophora (Phylum) > Ciliophora (awaiting allocation) (Class) > Ciliophora (awaiting allocation) (Order) > Ciliophora (awaiting allocation) (Family)
 Rhizotricha Stechow, 1919 accepted as Euphysa Forbes, 1848 (synonym) · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Corymorphidae (Family)

Rhobonda
     Rhobonda Walker, 1863 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Choreutidae (Family)
     Rhobonda Walker, 1864 accepted as Rhobonda Walker, 1864 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Gelechiidae (Family)

Rhoda
     Rhoda Sim, 1872 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Euphausiacea (Order) > Euphausiidae (Family)
     Rhoda Meinert, 1886 accepted as Rhoda Meinert, 1886 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Chilopoda (Class) > Scolopendrida (Order) > Scolopendridae (Family)

Rhodax
     Rhodax Spach, 1836 accepted as Rhodax Spach, 1836 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Cistaceae (Family)
     Rhodax Marcus, 1946 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Tricladida (Order) > Dimarcusidae (Family)

Rhodea
 Rhodea K.B. Presl in Sternberg, 1838 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiidae (awaiting allocation) (Order) > Polypodiidae (awaiting allocation) (Family)
     Rhodea Adams, 1855 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Subulinidae (Family)

Rhodesia
     Rhodesia Womersley, 1934 accepted as Rhodesia Womersley, 1934 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Collembola (Class) > Entomobryomorpha (Order) > Isotomidae (Family)
     Rhodesia W.B. Grove, 1937 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Helotiales (Order) > Helotiales incertae sedis (Family)
 Rhodesia Adams, 1905 accepted as Rhodesiella Adams, 1905 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Chloropidae (Family)
     Rhodesia Warren, 1905 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
     Rhodesia Distant, 1911 accepted as Rhodesia Distant, 1911 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Rhodesiella
     Rhodesiella Adams, 1905 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Chloropidae (Family)
     Rhodesiella Poppius, 1914 accepted as Rhodesiella Poppius, 1914 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Miridae (Family)

Rhodesina
     Rhodesina Curran, 1939 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Rhodesina Malloch, 1921 accepted as Rhodesina Malloch, 1921 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
 Rhodesina Conil & Longerstaey in Conil, Longerstaey & Ramsbottom, 1979 accepted as Rhodesinella Conil & Longerstaey in Conil, 1980 † (Opinion of Loeblich & Tappan, 1987) · Chromista (Kingdom) > Retaria (Phylum) > Tubothalamea (Class) > Fusulinida (Order) > Endothyridae (Family)

Rhodia
     Rhodia Adanson, 1763 accepted as Rhodia Adanson, 1763 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Saxifragales (Order) > Crassulaceae (Family)
 Rhodia Moore, 1872 accepted as Rhodinia Staudinger in Romanoff, 1892 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Saturniidae (Family)
 Rhodia Bell, 1836 accepted as Herbstia H. Milne Edwards, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Majidae (Family)

Rhodina
     Rhodina de Morgan, 1885 accepted as Rhodina de Morgan, 1885 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Subulinidae (Family)
     Rhodina Guenée, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Rhodobaetis
     Rhodobaetis Kazlauskas, 1972 accepted as Rhodobaetis Kazlauskas, 1972 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Ephemeroptera (Order) > Ephemeroptera (awaiting allocation) (Family)
 Rhodobaetis Jacob, 2003 accepted as Baetis Leach, 1815 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Ephemeroptera (Order) > Baetidae (Family)

Rhodobium
     Rhodobium Hiraishi, Urata & Satoh, 1995 · Bacteria (Kingdom) > Proteobacteria (Phylum) > Alphaproteobacteria (Class) > Rhizobiales (Order) > Rhodobiaceae (Family)
     Rhodobium Hille Ris Lambers, 1947 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aphididae (Family)

Rhodobryum
     Rhodobryum (W.P. Schimper) Limpricht, 1892 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Bryales (Order) > Bryaceae (Family)
 Rhodobryum Hampe, 1874 accepted as Rhodobryum (W.P. Schimper) Limpricht, 1892 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Bryales (Order) > Bryaceae (Family)

Rhodocephalus
 Rhodocephalus Corda, 1837 accepted as Aspergillus Micheli ex Link, 1809 · Fungi (Kingdom) > Ascomycota (Phylum) > Eurotiomycetes (Class) > Eurotiales (Order) > Trichocomaceae (Family)
 Rhodocephalus Reichenow, 1881 accepted as Geoffroyus Bonaparte, 1850 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Psittaciformes (Order) > Psittacidae (Family)

Rhodococcus
     Rhodococcus A. Hansgirg in V.B. Wittrock & C.F.O. Nordstedt, 1884 accepted as Rhodococcus A. Hansgirg in V.B. Wittrock & C.F.O. Nordstedt, 1884 (unassessed) · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Tetrasporales (Order) > Palmellaceae (Family)
     Rhodococcus Zopf, 1891 (Approved Lists, 1980) · Bacteria (Kingdom) > Actinobacteria (Phylum) > Actinobacteria (Class) > Actinomycetales (Order) > Nocardiaceae (Family)
     Rhodococcus Borkhsenius, 1953 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Coccidae (Family)
 Rhodococcus A. Hansgirg, 1884 accepted as · Plantae (Kingdom) > Rhodophyta (Phylum) > Cyanidiophyceae (Class) > Cyanidiales (Order) > Cyanidiaceae (Family)
 Rhodococcus Hirose, 1958 accepted as Cyanidium L. Geitler, 1933 · Plantae (Kingdom) > Rhodophyta (Phylum) > Cyanidiophyceae (Class) > Cyanidiales (Order) > Cyanidiaceae (Family)
 Rhodococcus Hansgirg in Wittrock & Nordstedt, 1884 accepted as Chroococcus Nägeli, 1849 · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Chroococcales (Order) > Chroococcaceae (Family)

Rhodomonas
     Rhodomonas Karsten, 1898 · Chromista (Kingdom) > Cryptista (Phylum) > Cryptophyceae (Class) > Pyrenomonadales (Order) > Pyrenomonadaceae (Family)
 Rhodomonas Kluyver & van Niel, 1936 accepted as Rhodopseudomonas Czurda & Maresch, 1937 (Approved Lists, 1980) · Bacteria (Kingdom) > Proteobacteria (Phylum) > Alphaproteobacteria (Class) > Rhizobiales (Order) > Bradyrhizobiaceae (Family)

Rhodonema
     Rhodonema Andrassy, 1983 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Rhabditida (Order) > Bunonematidae (Family)
 Rhodonema G. Martens, 1824 accepted as Dasya C.Agardh, 1824 (synonym) · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Ceramiales (Order) > Dasyaceae (Family)

Rhodope
     Rhodope Angelin, 1854 † accepted as Rhodope Angelin, 1854 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
     Rhodope Koelliker, 1847 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Rhodopidae (Family)

Rhodopeltis
     Rhodopeltis Harvey, 1863 · Plantae (Kingdom) > Rhodophyta (Phylum) > Rhodophyta incertae sedis (Class) > Cryptonemiales (Order) > Dumontiaceae (Family)
 Rhodopeltis Askenasy, 1872 accepted as · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Ceramiales (Order) > Rhodomelaceae (Family)

Rhodophila
     Rhodophila Blyth, 1862 accepted as Rhodophila Blyth, 1862 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Rhodophila accepted as Rhodopila Imhoff, Truper & Pfennig, 1984 · Bacteria (Kingdom) > Proteobacteria (Phylum) > Alphaproteobacteria (Class) > Rhodospirillales (Order) > Acetobacteraceae (Family)

Rhodopiella
     Rhodopiella Strasser, 1966 · Animalia (Kingdom) > Arthropoda (Phylum) > Diplopoda (Class) > Julida (Order) > Julidae (Family)
     Rhodopiella Nordsieck, 1973 † accepted as Rhodopiella Nordsieck, 1973 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)

Rhodopis
     Rhodopis Reichenbach, 1854 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Apodiformes (Order) > Trochilidae (Family)
     Rhodopis Urban, 1900 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Rhodopis Kinberg, 1866 accepted as Metaphire Sims & Easton, 1972 · Animalia (Kingdom) > Annelida (Phylum) > Oligochaeta (Class) > Haplotaxida (Order) > Megascolecidae (Family)
 Rhodopis Thomson, 1857 accepted as Rhodopina Gressitt, 1951 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Rhodoplax
     Rhodoplax Thiele in Troschel, 1893 · Animalia (Kingdom) > Mollusca (Phylum) > Polyplacophora (Class) > Ischnochitonida (Order) > Ischnochitonidae (Family)
     Rhodoplax Schmidle & Wellheim in Schmidle, 1901 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlamydomonadales (Order) > Chlamydomonadales (awaiting allocation) (Family)

Rhodopsis
     Rhodopsis Bush, 1905 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Sabellida (Order) > Serpulidae (Family)
     Rhodopsis (Endlicher) H.G.L. Reichenbach, 1841 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Rosaceae (Family)
 Rhodopsis Lilja, 1840 accepted as Rhodopsis Lilja, 1840 (nomen rejiciendum) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Portulacaceae (Family)

Rhodoseris
     Rhodoseris Turczaninow, 1851 accepted as Rhodoseris Turczaninow, 1851 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Rhodoseris Harvey, 1863 accepted as Botryoglossum Kützing, 1843 (synonym) · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Ceramiales (Order) > Delesseriaceae (Family)

Rhodosoma
     Rhodosoma Ehrenberg, 1828 · Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Phlebobranchia (Order) > Corellidae (Family)
 Rhodosoma Butler, 1877 accepted as Hayesiana Fletcher in Fletcher & Nye, 1982 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Sphingidae (Family)

Rhodosphaera
 Rhodosphaera Buchanan, 1918 accepted as Rhodosphaera Buchanan, 1918 (No current standing in Prokaryotic nomenclature.) · Bacteria (Kingdom) > Bacteria (awaiting allocation) (Phylum) > (Class) > (Order) > (Family)
     Rhodosphaera Engler, 1881 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Anacardiaceae (Family)
     Rhodosphaera Haeckel, 1881 · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Spumellaria (Order) > Spumellaria (awaiting allocation) (Family)

Rhodostoma
     Rhodostoma Sollas, 1912 † accepted as Rhodostoma Sollas, 1912 † (unassessed) · Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
 Rhodostoma Scheidweiler, 1842 accepted as Palicourea Aublet, 1775 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
 Rhodostoma Swainson, 1840 accepted as Cassidula Férussac, 1821 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ellobiida (Order) > Ellobiidae (Family)

Rhodothamnus
 Rhodothamnus Lindley & Paxton, 1850-1851 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericaceae (Family)
     Rhodothamnus H.G.L. Reichenbach in J.C. Mössler, 1827 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericaceae (Family)

Rhomalea
     Rhomalea Koch in Koch (Keyserling), 1873 accepted as Rhomalea Koch in Koch (Keyserling), 1873 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Sparassidae (Family)
 Rhomalea Fischer, 1833 accepted as Romalea Audinet-Serville, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Romaleidae (Family)
 Rhomalea Jukes-Browne, 1914 accepted as Eurhomalea Cossmann, 1920 (invalid: junior homonym of Rhomalea Koch, 1873 [Arachnida]; Eurhomalea Cossmann, 1920 is a replacement name) · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Veneridae (Family)

Rhomaleus
     Rhomaleus Chatanay, 1915 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
     Rhomaleus Bode, 1953 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera incertae sedis (Family)

Rhombifera
     Rhombifera † · Animalia (Kingdom) > Echinodermata (Phylum) > Rhombifera (Class) > (Order) > (Family)
     Rhombifera Barrande, 1867 † · Animalia (Kingdom) > Echinodermata (Phylum) > Rhombifera (Class) > Rhombifera (awaiting allocation) (Order) > Rhombifera (awaiting allocation) (Family)
     Rhombifera Pérès, 1956 · Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Aplousobranchia (Order) > Polycitoridae (Family)

Rhombochiton
     Rhombochiton Berry, 1919 accepted as Rhombochiton Berry, 1919 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Rhombochiton Lindström, 1884 accepted as Rhombochiton Lindström, 1884 (Misspelling) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Rhombocoris
     Rhombocoris Mayr, 1864 accepted as Rhombocoris Mayr, 1864 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Rhombocoris Kormilev, 1965 accepted as Pararhombocoris Kormilev, 1990 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aradidae (Family)

Rhombodera
     Rhombodera Burmeister, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Mantodea (Order) > Mantidae (Family)
 Rhombodera Reiche, 1842 accepted as Pentagonica Schmidt-Goebel, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Rhomboidella
     Rhomboidella Pascher, 1939 · Chromista (Kingdom) > Ochrophyta (Phylum) > Xanthophyceae (Class) > Mischococcales (Order) > Pleurochloridaceae (Family)
     Rhomboidella Sucic-Protic, 1985 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Zeilleriidae (Family)
     Rhomboidella Monterosato, 1884 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Mytiloida (Order) > Mytilidae (Family)

Rhomboides
 Rhomboides Blainville, 1824 accepted as Hiatella Bosc, 1801 (synonym) · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Myoida (Order) > Hiatellidae (Family)
 Rhomboides Goldfuss, 1820 accepted as Scophthalmus Rafinesque, 1810 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Pleuronectiformes (Order) > Scophthalmidae (Family)

Rhombopalpa
     Rhombopalpa Dejean, 1835 accepted as Rhombopalpa Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Rhombopalpa Chevrolat, 1837 accepted as Oides Weber, 1801 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Rhombopholis
     Rhombopholis Fritsch, 1879 † accepted as Rhombopholis Fritsch, 1879 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)
     Rhombopholis Owen, 1866 † accepted as Rhombopholis Owen, 1866 † · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)

Rhombopsis
     Rhombopsis Gardner, 1916 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Melongenidae (Family)
 Rhombopsis Haupt, 1927 accepted as Dryadomorpha Kirkaldy, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)

Rhombosoma
 Rhombosoma Regan, 1914 accepted as Melanotaenia Gill, 1862 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Atheriniformes (Order) > Melanotaeniidae (Family)
 Rhombosoma Champion, 1914 accepted as Shutea Alonso-Zarazaga & Lyal, 1999 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Rhomboteuthis
 Rhomboteuthis Fowler, 1944 accepted as Acanthurus Forsskål, 1775 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Acanthuridae (Family)
     Rhomboteuthis Fischer & Riou, 1982 † accepted as Rhomboteuthis Fischer & Riou, 1982 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Cephalopoda (awaiting allocation) (Order) > Cephalopoda (awaiting allocation) (Family)

Rhombotides
 Rhombotides Walbaum in Artedi, 1792 accepted as Acanthurus Forsskål, 1775 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Acanthuridae (Family)
 Rhombotides Klein, 1775 accepted as Acanthurus Forsskål, 1775 (synonym) · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Acanthuridae (Family)
 Rhombotides Bleeker, 1863 accepted as Acanthurus Forsskål, 1775 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Acanthuridae (Family)

Rhombus
 Rhombus Cuvier, 1816 accepted as Scophthalmus Rafinesque, 1810 (synonym) · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Pleuronectiformes (Order) > Scophthalmidae (Family)
 Rhombus Walbaum in Artedi, 1792 accepted as Scophthalmus Rafinesque, 1810 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Pleuronectiformes (Order) > Scophthalmidae (Family)
 Rhombus Klein, 1775 accepted as Scophthalmus Rafinesque, 1810 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Pleuronectiformes (Order) > Scophthalmidae (Family)
 Rhombus Lacepède, 1800 accepted as Peprilus Cuvier, 1829 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Stromateidae (Family)
 Rhombus Montfort, 1810 † accepted as Conus Linnaeus, 1758 (Invalid: junior homonym of Rhombus Walbaum, 1792 [Pisces]) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Conidae (Family)

Rhonchus
     Rhonchus Agassiz, 1845 † accepted as Rhonchus Agassiz, 1845 † · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Rhonchus Agassiz, 1845 † accepted as Rhonchus Agassiz, 1845 † · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Rhonchus Woodward, 1901 † accepted as Rhonchus Woodward, 1901 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Rhopalia
     Rhopalia Radtke, 1991 † accepted as Rhopalia Radtke, 1991 † (unassessed) · Animalia (Kingdom) > Problematica (Phylum) > Problematica (awaiting allocation) (Class) > Problematica (awaiting allocation) (Order) > Problematica (awaiting allocation) (Family)
     Rhopalia Macquart, 1839 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Mydidae (Family)
 Rhopalia Norman, 1897 accepted as Rhopalaea Philippi, 1843 · Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Phlebobranchia (Order) > Diazonidae (Family)

Rhopalicus
     Rhopalicus Förster, 1856 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Pteromalidae (Family)
 Rhopalicus Schrammen, 1936 † accepted as Rhopalicus Schrammen, 1936 † (Misspelling) · Animalia (Kingdom) > Porifera (Phylum) > Porifera (awaiting allocation) (Class) > Porifera (awaiting allocation) (Order) > Porifera (awaiting allocation) (Family)

Rhopalidia
     Rhopalidia Lepeletier, 1835 accepted as Rhopalidia Lepeletier, 1835 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Rhopalidia Guérin-Méneville, 1838 accepted as Ropalidia · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Vespidae (Family)

Rhopalina
     Rhopalina Monné, 1990 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Rhopalina Tinkham, 1939 accepted as Rhopalina Tinkham, 1939 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tetrigidae (Family)

Rhopalobelus
     Rhopalobelus Schwetzoff, 1913 † accepted as Rhopalobelus Schwetzoff, 1913 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Rhopalobelus Pavlov, 1913 accepted as Rhopalobelus Pavlov, 1913 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Rhopalobrachium
     Rhopalobrachium Boheman, 1858 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Phloeostichidae (Family)
     Rhopalobrachium Schlechter & K. Krause, 1908 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Rhopalocanium
     Rhopalocanium Ehrenberg, 1847 · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Nassellaria (Order) > Theoperidae (Family)
 Rhopalocanium Haeckel, 1881 accepted as Rhopalocanium Ehrenberg, 1847 (later usage (additional citation in Nomenclator Zoologicus, with incorrect authority)) · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Nassellaria (Order) > Theoperidae (Family)

Rhopalocarpus
     Rhopalocarpus Bojer, 1846 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Sphaerosepalaceae (Family)
 Rhopalocarpus Teysmann & Binnendijk ex Miquel, 1865 accepted as Anaxagorea A.F.C.P. Saint-Hilaire, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Magnoliales (Order) > Annonaceae (Family)

Rhopalocera
 Rhopalocera Agassiz, 1846 accepted as Rhopalocera Agassiz, 1846 (Unjustified (?) emendation) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Rhopalocera Filippi, 1854 accepted as Rhopalocera Filippi, 1854 (Misspelling) · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Trematoda (awaiting allocation) (Order) > Trematoda (awaiting allocation) (Family)
 Rhopalocera Ganglbauer, 1895 accepted as Rhopalocerina Reitter, 1909 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Rhopalocerus
     Rhopalocerus Redtenbacher, 1842 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Zopheridae (Family)
 Rhopalocerus Agassiz, 1846 † accepted as Rhopalocerus Agassiz, 1846 † (Unjustified (?) emendation) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Erotylidae (Family)

Rhopalocystis
     Rhopalocystis Ubaghs, 1964 † · Animalia (Kingdom) > Echinodermata (Phylum) > Eocrinoidea (Class) > Eocrinoidea incertae sedis (Order) > Rhopalocystidae (Family)
 Rhopalocystis Schussnig, 1955 accepted as · Plantae (Kingdom) > Chlorophyta (Phylum) > Trebouxiophyceae (Class) > Oocystales (Order) > Oocystaceae (Family)
 Rhopalocystis W.B. Grove, 1911 accepted as Aspergillus Micheli ex Link, 1809 · Fungi (Kingdom) > Ascomycota (Phylum) > Eurotiomycetes (Class) > Eurotiales (Order) > Trichocomaceae (Family)

Rhopalodontus
 Rhopalodontus Dohrn in Strübing, 1851 accepted as Ropalodontus Mellié, 1847 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ciidae (Family)
     Rhopalodontus Gemminger & Harold, 1869 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ciidae (Family)

Rhopalogaster
     Rhopalogaster J.R. Johnston, 1902 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Boletales (Order) > Rhizopogonaceae (Family)
     Rhopalogaster Macquart, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Asilidae (Family)
 Rhopalogaster Kistner, 1972 † accepted as Steysborgia Kistner & Jacobson, 1975 † · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Rhopalomelus
     Rhopalomelus Boheman, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Rhopalomelus Motschulsky, 1864 accepted as Pseudotaphoxenus Schaufuss, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Rhopalomerus
     Rhopalomerus Blanchard in Gay, 1851 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Rhopalomerus Chevrolat, 1860 accepted as Neoclytus Thomson, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Rhopalomyces
     Rhopalomyces Corda, 1839 · Fungi (Kingdom) > Zygomycota (Phylum) > Zygomycota incertae sedis (Class) > Zoopagales (Order) > Helicocephalidaceae (Family)
 Rhopalomyces Harder & Sörgel, 1938 accepted as Blastocladiella V.D. Matthews, 1937 · Fungi (Kingdom) > Blastocladiomycota (Phylum) > Blastocladiomycetes (Class) > Blastocladiales (Order) > Blastocladiaceae (Family)

Rhopalomyia
     Rhopalomyia Rübsaamen, 1892 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Cecidomyiidae (Family)
 Rhopalomyia Williston, 1895 accepted as Willistoniella Mik, 1895 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Cecidomyiidae (Family)

Rhopalomyzus
     Rhopalomyzus Mordvilko, 1921 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aphididae (Family)
     Rhopalomyzus Börner, 1950 accepted as Rhopalomyzus Börner, 1950 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)

Rhopalophora
     Rhopalophora Audinet-Serville, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Rhopalophora Blanchard, 1845 accepted as Ropalophorus Curtis, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Braconidae (Family)

Rhopalophorus
 Rhopalophorus accepted as Rhopalophora Audinet-Serville, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Rhopalophorus Diesing, 1850 accepted as Rhopalias Stiles & Hassall, 1898 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Echinostomida (Order) > Rhopaliidae (Family)

Rhopalophyllum
     Rhopalophyllum C. von Ettingshausen, 1888 † accepted as Rhopalophyllum C. von Ettingshausen, 1888 † (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Proteales (Order) > Proteaceae (Family)
     Rhopalophyllum Wedekind, 1924 accepted as Rhopalophyllum Wedekind, 1924 (unassessed) · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)

Rhopalopsis
 Rhopalopsis M.C. Cooke, 1883 accepted as Kretzschmaria E.M. Fries, 1849 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Xylariales (Order) > Xylariaceae (Family)
 Rhopalopsis Herdman, 1890 accepted as Rhopalaea Philippi, 1843 · Animalia (Kingdom) > Chordata (Phylum) > Ascidiacea (Class) > Phlebobranchia (Order) > Diazonidae (Family)

Rhopalopus
     Rhopalopus Agassiz, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Rhopalopus Redtenbacher accepted as Ropalopus Mulsant, 1839 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Rhopalosoma
     Rhopalosoma Cresson, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Rhopalosomatidae (Family)
     Rhopalosoma Voigt, 1902 accepted as Rhopalosoma Voigt, 1902 (unassessed) · Animalia (Kingdom) > Rotifera (Phylum) > Rotifera (awaiting allocation) (Class) > Rotifera (awaiting allocation) (Order) > Rotifera (awaiting allocation) (Family)

Rhopalostigma
     Rhopalostigma R.A. Philippi, 1858 accepted as Rhopalostigma R.A. Philippi, 1858 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Solanales (Order) > Solanaceae (Family)
 Rhopalostigma H.W. Schott, 1859 accepted as Phrodus Miers, 1849 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Solanales (Order) > Solanaceae (Family)

Rhopalostylis
     Rhopalostylis H. Wendland & Drude, 1875 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Arecaceae (Family)
 Rhopalostylis J.F. Klotzsch ex H.E. Baillon, 1865 accepted as Dalechampia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)

Rhopalotoma
     Rhopalotoma Cameron, 1911 accepted as Rhopalotoma Cameron, 1911 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
 Rhopalotoma Clark, 1865 accepted as Ocnoscelis Erichson, 1847 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Rhopalotyphlus
 Rhopalotyphlus Scheerpeltz, 1940 accepted as Rhopalotyphlus Scheerpeltz, 1956 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Rhopalotyphlus Scheerpeltz, 1956 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Rhophobas
 Rhophobas Champion, 1895 accepted as Rhophobas Champion, 1895 (Misspelling) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Rhophobas Motschulsky, 1872 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Rhopocichla
     Rhopocichla Oates, 1889 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Sylviidae (Family)
 Rhopocichla Allen, 1891 accepted as Rhopornis Richmond, 1902 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Thamnophilidae (Family)

Rhopographus
     Rhopographus Nitschke ex Fuckel, 1870 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Pleosporales (Order) > Pleosporales incertae sedis (Family)
     Rhopographus Konow, 1899 accepted as Rhopographus Konow, 1899 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Rhoporhynchus
     Rhoporhynchus Wang, 1995 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Strigeidida (Order) > Bucephalidae (Family)
 Rhoporhynchus Wang & Wang, 1998 accepted as Rhoporhynchus Wang, 1995 (synonym) · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Strigeidida (Order) > Bucephalidae (Family)

Rhoptria
     Rhoptria Guenée, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
     Rhoptria Gumppenberg, 1892 accepted as Rhoptria Gumppenberg, 1892 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)

Rhoptrodinarda
     Rhoptrodinarda Brauns, 1914 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Rhoptrodinarda Wasmann, 1916 accepted as Rhoptrodinarda Brauns, 1914 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Rhoptrum
     Rhoptrum Schrammen, 1910 † · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Lithistida (Order) > Lithistida (awaiting allocation) (Family)
     Rhoptrum Enderlein, 1922 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Neriidae (Family)

Rhyacophila
     Rhyacophila Pictet, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Trichoptera (Order) > Rhyacophilidae (Family)
 Rhyacophila Hochstetter, 1841 accepted as Rotala Linnaeus, 1771 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Lythraceae (Family)

Rhynchaea
     Rhynchaea Zetterstedt, 1842 accepted as Rhynchaea Zetterstedt, 1842 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
 Rhynchaea Oken, 1817 accepted as Rostratula Vieillot, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Charadriiformes (Order) > Rostratulidae (Family)

Rhynchaena
 Rhynchaena Gloger, 1841 accepted as Rostratula Vieillot, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Charadriiformes (Order) > Rostratulidae (Family)
 Rhynchaena Weber & Beaufort, 1911 accepted as Gonorynchus Scopoli, 1777 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Gonorynchiformes (Order) > Gonorynchidae (Family)

Rhynchaenus
     Rhynchaenus Clairville, 1798 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Rhynchaenus Reitter in Heyden, Reitter & Weise, 1906 accepted as Rynchaenus Schellenberg in Clairville, 1798 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Rhynchaenus Latreille, 1828 accepted as Notaris Germar, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brachyceridae (Family)

Rhynchaturus
     Rhynchaturus Besch, 1964 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Aturidae (Family)
     Rhynchaturus Besch, 1963 accepted as Rhynchaturus Besch, 1964 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Aturidae (Family)

Rhynchitobius
     Rhynchitobius Sharp, 1889 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Attelabidae (Family)
 Rhynchitobius Kôno, 1928 accepted as Chonostropheus Prell, 1925 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Attelabidae (Family)

Rhynchitomacerinus
     Rhynchitomacerinus Kuschel, 1954 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Nemonychidae (Family)
     Rhynchitomacerinus Voss, 1951 accepted as Rhynchitomacerinus Voss, 1951 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Nemonychidae (Family)

Rhynchitoplesius
     Rhynchitoplesius Voss, 1951 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Nemonychidae (Family)
     Rhynchitoplesius Kuschel, 1954 accepted as Rhynchitoplesius Kuschel, 1954 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)

Rhynchium
     Rhynchium Dulac, 1867 accepted as Rhynchium Dulac, 1867 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Rhynchium Billberg, 1820 accepted as Rygchium Spinola, 1806 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Vespidae (Family)

Rhynchobodo
     Rhynchobodo J.B. Lackey, 1940 · Protozoa (Kingdom) > Euglenozoa (Phylum) > Kinetoplastea (Class) > Bodonida (Order) > Neobodonidae (Family)
 Rhynchobodo Vørs, 1992 accepted as Rhynchobodo J.B. Lackey, 1940 (incorrect cited authority) · Protozoa (Kingdom) > Euglenozoa (Phylum) > Kinetoplastea (Class) > Bodonida (Order) > Neobodonidae (Family)

Rhynchocarpa
 Rhynchocarpa H.A. Schrader ex Endlicher, 1839 accepted as Kedrostis Medikus, 1791 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Cucurbitales (Order) > Cucurbitaceae (Family)
 Rhynchocarpa Backer ex K. Heyne, 1927 accepted as Dialium Linnaeus, 1767 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Rhynchocarpa Beccari, 1920 accepted as Burretiokentia Pichi Sermolli in Beccari & Pichi Sermolli, 1955 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Arecaceae (Family)

Rhynchocephalus
     Rhynchocephalus Fischer, 1806 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Nemestrinidae (Family)
     Rhynchocephalus Owen, 1845 † accepted as Rhynchocephalus Owen, 1845 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Rhynchocephalia (Order) > Sphenodontidae (Family)

Rhynchoceros
     Rhynchoceros Berthold in Latreille, 1827 accepted as Rhynchoceros Berthold in Latreille, 1827 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Rhynchoceros Bonaparte, 1854 accepted as Rhynchoceros Bonaparte, 1854 (Misspelling) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Coraciiformes (Order) > Coraciiformes (awaiting allocation) (Family)

Rhynchocerus
 Rhynchocerus Berthold in Latreille, 1827 accepted as Rhynchocerus Berthold in Latreille, 1827 (Misspelling) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Rhynchocerus Karsch, 1896 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)

Rhynchocyclus
     Rhynchocyclus Cabanis & Heine, 1860 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Tyrannidae (Family)
 Rhynchocyclus Stimpson, 1860 accepted as Latreutes Stimpson, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Hippolytidae (Family)

Rhynchocyon
     Rhynchocyon Peters, 1847 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Insectivora (Order) > Macroscelididae (Family)
 Rhynchocyon Gistl, 1848 accepted as Macroglossus Cuvier, 1824 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Chiroptera (Order) > Pteropodidae (Family)

Rhynchodes
     Rhynchodes White, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Rhynchodes Guenée, 1852 accepted as Hondryches Nye, 1975 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Rhynchodia
     Rhynchodia Hampson, 1910 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
 Rhynchodia Bentham in Bentham & J.D. Hooker, 1876 accepted as Chonemorpha G. Don, 1837 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)

Rhynchoferella
     Rhynchoferella Strand, 1915 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Copromorphidae (Family)
     Rhynchoferella Spriestersbach, 1942 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Articulata (awaiting allocation) (Family)

Rhynchognathus
     Rhynchognathus Jaekel, 1929 † accepted as Rhynchognathus Jaekel, 1929 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Rhynchognathus Ethington, 1959 † accepted as Rhynchognathus Ethington, 1959 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Conodonta (Class) > Conodontophorida (Order) > Conodonta (awaiting allocation) (Family)

Rhynchogonia
     Rhynchogonia Brauer & Bergenstamm, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Rhynchogonia Arrow, 1902 accepted as Rhynchogonia Arrow, 1902 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)

Rhyncholagena
     Rhyncholagena Lang, 1944 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Miraciidae (Family)
 Rhyncholagena Lang, 1948 accepted as Rhyncholagena Lang, 1944 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Miraciidae (Family)

Rhyncholepis
     Rhyncholepis Kiaer, 1911 † accepted as Rhyncholepis Kiaer, 1911 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Cephalaspidomorphi (Class) > Birkeniiformes (Order) > Birkeniidae (Family)
     Rhyncholepis Miquel, 1843 accepted as Rhyncholepis Miquel, 1843 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Piperales (Order) > Piperaceae (Family)

Rhyncholophus
 Rhyncholophus Dugès, 1834 accepted as Erythraeus Latreille, 1806 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Erythraeidae (Family)
 Rhyncholophus Koch, 1879 accepted as Microtrombidium Haller, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Actinedida (Order) > Microtrombidiidae (Family)

Rhyncholus
     Rhyncholus Say, 1831 accepted as Rhyncholus Say, 1831 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Rhyncholus Gistl, 1834 accepted as Rhyncolus Germar, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Rhyncholus Schoenherr, 1826 accepted as Rhyncolus Germar, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Rhynchomonas
 Rhynchomonas Patton, 1910 accepted as Rhynchoidomonas Patton, 1910 · Protozoa (Kingdom) > Euglenozoa (Phylum) > Kinetoplastea (Class) > Trypanosomatida (Order) > Trypanosomatidae (Family)
     Rhynchomonas Klebs, 1892 · Protozoa (Kingdom) > Euglenozoa (Phylum) > Kinetoplastea (Class) > Bodonida (Order) > Rhynchomonadidae (Family)

Rhynchomya
     Rhynchomya Agassiz, 1843 † accepted as Rhynchomya Agassiz, 1843 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Rhynchomya accepted as Rhyncomya Robineau-Desvoidy, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Rhiniidae (Family)

Rhynchomyces
     Rhynchomyces Willkomm, 1866 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
 Rhynchomyces P.A. Saccardo & Marchal ex Marchal, 1885 accepted as Pyxidiophora Brefeld & Tavel, 1891 · Fungi (Kingdom) > Ascomycota (Phylum) > Laboulbeniomycetes (Class) > Pyxidiophorales (Order) > Pyxidiophoraceae (Family)

Rhynchomys
     Rhynchomys Thomas, 1895 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Muridae (Family)
 Rhynchomys Fairmaire, 1903 accepted as Eurhynchomys Hustache, 1924 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Rhynchonelloidea
     Rhynchonelloidea Buckman, 1917 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Rhynchonellidae (Family)
     Rhynchonelloidea Buckman, 1914 † accepted as Rhynchonelloidea Buckman, 1917 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Rhynchonellidae (Family)

Rhynchonellopsis
     Rhynchonellopsis Vincent, 1893 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Cancellothyrididae (Family)
 Rhynchonellopsis De Gregorio, 1930 † accepted as Sulcirostra Cooper & Muir-Wood, 1951 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Dimerellidae (Family)
 Rhynchonellopsis Böse, 1894 † accepted as Capillirostra Cooper & Muir-Wood, 1951 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Norellidae (Family)

Rhynchonema
     Rhynchonema Kützing, 1849 · Plantae (Kingdom) > Charophyta (Phylum) > Conjugatophyceae (Class) > Zygnematales (Order) > Zygnemataceae (Family)
     Rhynchonema Cobb, 1920 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Monhysterida (Order) > Xyalidae (Family)

Rhynchonerella
 Rhynchonerella Claparède, 1868 accepted as Plotohelmis Chamberlin, 1919 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Alciopidae (Family)
 Rhynchonerella Costa, 1862 accepted as Rhynchonereella Costa, 1864 (spelling variation) · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Phyllodocida (Order) > Alciopidae (Family)

Rhynchopera
 Rhynchopera Börner, 1912 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Cyperaceae (Family)
 Rhynchopera Klotzsch in Link et al., 1844 accepted as Pleurothallis R. Brown in W.T. Aiton, 1813 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Rhynchophorus
     Rhynchophorus Brunner in Brunner & Redtenbacher, 1908 accepted as Rhynchophorus Brunner in Brunner & Redtenbacher, 1908 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phasmatodea (Order) > Phasmatodea (awaiting allocation) (Family)
     Rhynchophorus Herbst, 1795 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Rhynchophorus Hollós, 1926 accepted as Ceratopycnis F. von Höhnel, 1915 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
 Rhynchophorus Gistl, 1834 accepted as Rhynchophorus Herbst, 1795 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dryophthoridae (Family)

Rhynchophrya
     Rhynchophrya Collin, 1909 · Chromista (Kingdom) > Ciliophora (Phylum) > Phyllopharyngea (Class) > Evaginogenida (Order) > Rhynchophryidae (Family)
 Rhynchophrya Raabe, 1935 accepted as Gargarius Chatton & Lwoff, 1934 (junior homonym and synonym) · Chromista (Kingdom) > Ciliophora (Phylum) > Phyllopharyngea (Class) > Rhynchodida (Order) > Sphenophryidae (Family)

Rhynchopora
     Rhynchopora King, 1865 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Rhynchoporidae (Family)
 Rhynchopora Hincks, 1877 accepted as Rhynchozoon Hincks, 1895 (pre-occupied name) · Animalia (Kingdom) > Bryozoa (Phylum) > Gymnolaemata (Class) > Cheilostomatida (Order) > Phidoloporidae (Family)

Rhynchoprion
     Rhynchoprion Hermann, 1804 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Ixodida (Order) > Ixodidae (Family)
 Rhynchoprion Oken, 1815 accepted as Pulex Linnaeus, 1758 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Siphonaptera (Order) > Pulicidae (Family)

Rhynchopsis
 Rhynchopsis Brehm in Baedeker, 1855-63 accepted as Rhynchopsis Brehm in Baedeker, 1855-63 (Misspelling) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Rhynchopsis J.M.H. Shaw, 2009 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Rhynchopterus
     Rhynchopterus Gabb, 1864 † accepted as Rhynchopterus Gabb, 1864 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Pterioida (Order) > Pteriidae (Family)
 Rhynchopterus Schrank, 1798 accepted as Rhynchophorus Herbst, 1795 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Dryophthoridae (Family)

Rhynchopus
     Rhynchopus Stock, 1979 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Cyclopoida (Order) > Serpulidicolidae (Family)
     Rhynchopus Skuja, 1948 · Protozoa (Kingdom) > Euglenozoa (Phylum) > Diplonemea (Class) > Diplonemida (Order) > Diplonemidae (Family)

Rhynchorhinus
     Rhynchorhinus Agassiz, 1845 † accepted as Rhynchorhinus Agassiz, 1845 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)
     Rhynchorhinus Agassiz, 1844 † accepted as Rhynchorhinus Agassiz, 1844 † · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Rhynchosia
     Rhynchosia Motschoulsky, 1855 accepted as Rhynchosia Motschoulsky, 1855 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Rhynchosia Loureiro, 1790 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Rhynchosia Macquart, 1848 accepted as Rhynchosia Macquart, 1848 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)

Rhynchospira
 Rhynchospira Hall, 1859 † accepted as Rhynchospira Hall, 1859 † (Misspelling) · Animalia (Kingdom) > Brachiopoda (Phylum) > Brachiopoda (awaiting allocation) (Class) > Brachiopoda (awaiting allocation) (Order) > Brachiopoda (awaiting allocation) (Family)
 Rhynchospira Ehrenberg, 1845 accepted as Globigerina d'Orbigny, 1826 · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Globigerinida (Order) > Globigerinidae (Family)

Rhynchostylis
 Rhynchostylis Tausch, 1834 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
     Rhynchostylis Blume, 1825 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Rhynchotaenia
     Rhynchotaenia Brèthes, 1911 accepted as Rhynchotaenia Brèthes, 1911 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
 Rhynchotaenia Diesing, 1850 accepted as Fimbriaria Froelich, 1802 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Cyclophyllidea (Order) > Hymenolepididae (Family)

Rhynchotettix
     Rhynchotettix Hancock, 1907 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tetrigidae (Family)
 Rhynchotettix Bolivar, 1912 accepted as Enoplotettix Bolivar, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Acrididae (Family)

Rhynchoteuthis
     Rhynchoteuthis d'Orbigny, 1847 · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Teuthoidea (Order) > Ommatostrephidae (Family)
     Rhynchoteuthis Chun, 1903 † accepted as Rhynchoteuthis Chun, 1903 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Rhynchotheca
     Rhynchotheca Klebahn, 1933 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Botryosphaeriales (Order) > Botryosphaeriaceae (Family)
     Rhynchotheca Ruiz & Pavon, 1794 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Geraniales (Order) > Francoaceae (Family)

Rhynchothrips
     Rhynchothrips Hood, 1912 accepted as Rhynchothrips Hood, 1912 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Thysanoptera (Order) > Phlaeothripidae (Family)
 Rhynchothrips Karny, 1912 accepted as Rhamphothrips Karny, 1913 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Thysanoptera (Order) > Thripidae (Family)

Rhynchotrema
     Rhynchotrema Hall, 1860 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Rhynchotrematidae (Family)
 Rhynchotrema Thapar, 1933 accepted as Hapalorhynchus Stunkard, 1922 (preoccupied) · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Strigeidida (Order) > Spirorchiidae (Family)

Rhyncocheilus
     Rhyncocheilus Fauvel, 1882 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
 Rhyncocheilus Bernhauer & Schubert, 1914 accepted as Rhynchocheilus Sharp, 1889 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Rhyncodon
 Rhyncodon Nitzsch, 1829 accepted as Rhyncodon Nitzsch, 1829 (Misspelling) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Rhyncodon Allen, 1892 accepted as Rhynchocyon Peters, 1847 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Insectivora (Order) > Macroscelididae (Family)

Rhyncolus
 Rhyncolus Marshall, 1937 accepted as Stereocorynes Wollaston, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Rhyncolus Germar, 1817 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Rhyncyclia
     Rhyncyclia J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Rhyncyclia J.M.H. Shaw, 2004 accepted as Rhyncyclia J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Rhynea
     Rhynea Scopoli, 1777 accepted as Rhynea Scopoli, 1777 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Clusiaceae (Family)
 Rhynea A.P. de Candolle, 1838 accepted as Tenrhynea O.M. Hilliard & B.L. Burtt, 1981 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Rhyngia
 Rhyngia Trost, 1801 accepted as Rhingia Scopoli, 1763 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Syrphidae (Family)
 Rhyngia Rondani, 1844 accepted as Rhingia Scopoli, 1763 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Syrphidae (Family)

Rhyniella
     Rhyniella W.N. Croft & E.A. George, 1959 † accepted as Rhyniella W.N. Croft & E.A. George, 1959 † (unassessed) · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Cyanophyceae (awaiting allocation) (Order) > Cyanophyceae (awaiting allocation) (Family)
     Rhyniella Hirst & Maulik, 1926 † accepted as Rhyniella Hirst & Maulik, 1926 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Insecta (awaiting allocation) (Order) > Insecta (awaiting allocation) (Family)

Rhynocrangon
     Rhynocrangon Zarenkov, 1965 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Crangonidae (Family)
 Rhynocrangon Zarenkov, 1964 accepted as Rhynocrangon Zarenkov, 1965 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Crangonidae (Family)

Rhynomya
 Rhynomya Crosse, 1866 accepted as Rhinoclama Dall & E. A. Smith, 1886 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Pholadomyoida (Order) > Cuspidariidae (Family)
 Rhynomya Lesson, 1839 accepted as Rhinocrypta Gray, 1841 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Rhinocryptidae (Family)

Rhyparia
     Rhyparia Hübner, 1820 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Arctiidae (Family)
     Rhyparia Hübner, 1825 accepted as Rhyparia Hübner, 1825 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)
     Rhyparia Blume ex Hasskarl, 1844 accepted as Rhyparia Blume ex Hasskarl, 1844 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Salicaceae (Family)

Rhyparochromus
     Rhyparochromus Hahn, 1826 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Lygaeidae (Family)
 Rhyparochromus Curtis, 1836 accepted as Megalonotus Fieber, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Lygaeidae (Family)

Rhyparus
     Rhyparus Agassiz, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Rhyparus Schönherr, 1823 accepted as Rhyparus Schönherr, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Rhyparus Westwood, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Rhypholophus
     Rhypholophus Kolenati, 1860 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Limoniidae (Family)
     Rhypholophus Lederer & Miller, 1860 accepted as Rhypholophus Lederer & Miller, 1860 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)

Rhypobius
     Rhypobius Leconte · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Corylophidae (Family)
 Rhypobius Gemminger & Harold, 1876 accepted as Rypobius Leconte, 1852 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Corylophidae (Family)

Rhypodes
     Rhypodes Stål, 1868 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Lygaeidae (Family)
 Rhypodes Horn in Leconte, 1876 accepted as Rhypodillus Cockerell, 1906 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Rhysodes
     Rhysodes Dalman, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Rhysodidae (Family)
     Rhysodes Germar, 1822 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Rhysodes Smith & Tremberth, 1927 † accepted as Circophyllum Lang & Smith, 1939 † · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Stauriida (Order) > Kodonophyllidae (Family)

Rhysodina
     Rhysodina Louis Alexandre Aug Chevrolat, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Rhysodina Westwood, 1875 accepted as Rhysodina Louis Alexandre Aug Chevrolat, 1873 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Rhyssocarpus
     Rhyssocarpus Endlicher, 1843 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
 Rhyssocarpus Schönherr, 1840 accepted as Prypnus Schönherr, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Rhyssocarpus Blanchard, 1853 accepted as Prypnus Schönherr, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Rhyssonotus
     Rhyssonotus Agassiz, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lucanidae (Family)
     Rhyssonotus MacLeay, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lucanidae (Family)

Rhytidaspis
     Rhytidaspis Redtenbacher, 1891 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)
     Rhytidaspis McCoy, 1890 accepted as Rhytidaspis McCoy, 1890 · Animalia (Kingdom) > Chordata (Phylum) > Pisces (awaiting allocation) (Class) > Pisces (awaiting allocation) (Order) > Pisces (awaiting allocation) (Family)

Rhytiderus
 Rhytiderus Latreille, 1828 accepted as Rhytideres Schönherr, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Rhytiderus Chaudoir, 1844 accepted as Sericoda Kirby in Richardson, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Rhytidiopsis
     Rhytidiopsis V.F. Brotherus in Engler & Prantl, 1908 · Plantae (Kingdom) > Bryophyta (Phylum) > Bryopsida (Class) > Hypnobryales (Order) > Hylocomiaceae (Family)
 Rhytidiopsis Fischer, 1908 accepted as Rhytidiopsis Fischer, 1908 (Misspelling) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Charopidae (Family)

Rhytidocaulon
     Rhytidocaulon P.R.O. Bally, 1963 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
 Rhytidocaulon Nylander ex A.A. Elenkin, 1916 accepted as Letharia (Th. Fries) A. Zahlbruckner, 1892 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Lecanorales (Order) > Parmeliaceae (Family)

Rhytidocephalus
 Rhytidocephalus Agassiz, 1846 accepted as Ischyromerus Imhoff, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)
 Rhytidocephalus Gemminger & Harold, 1872 accepted as Ischyromerus Imhoff, 1838 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Brentidae (Family)

Rhytidoderes
 Rhytidoderes Agassiz, 1846 accepted as Rhytideres Schönherr, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Rhytidoderes Karsch, 1893 accepted as Rutidoderes Westwood in Drury, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Pyrgomorphidae (Family)
 Rhytidoderes Gemminger & Harold, 1871 accepted as Rhytideres Schönherr, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Rhytidoderes Wollaston, 1864 accepted as Rhytideres Schönherr, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Rhytidogaster
     Rhytidogaster Turner, 1907 accepted as Rhytidogaster Turner, 1907 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Thynnidae (Family)
 Rhytidogaster Agassiz, 1846 accepted as Rhytidogaster Agassiz, 1846 (Unjustified (?) emendation) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Braconidae (Family)

Rhytidonota
 Rhytidonota Agassiz, 1846 accepted as Rytinota Eschscholtz, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Rhytidonota Gemminger & von Harold, 1870 accepted as Rytinota Eschscholtz, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Rhytidophyllum
     Rhytidophyllum Lindström, 1883 † · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Rugosa (Order) > Rugosa (awaiting allocation) (Family)
     Rhytidophyllum C.F.P. Martius, 1829 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)

Rhytidosoma
 Rhytidosoma Shuckard, 1840 accepted as Rutidosoma Stephens, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Rhytidosoma Agassiz, 1846 accepted as Rutidosoma Stephens, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Rhytidosomus
 Rhytidosomus Schönherr, 1837 accepted as Rutidosoma Stephens, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Rhytidosomus Gemminger & Harold, 1871 accepted as Rutidosoma Stephens, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Rhytiglossa
 Rhytiglossa Oersted, 1854 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)
 Rhytiglossa C.G.D. Nees in Lindley, 1836 accepted as Isoglossa Oersted, 1854 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)

Rhytinota
 Rhytinota Kraatz, 1864 accepted as Rytinota Eschscholtz, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)
 Rhytinota Eschscholtz, 1831 accepted as Rytinota Eschscholtz, 1831 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Rhytiodus
     Rhytiodus Kner, 1858 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Characiformes (Order) > Anostomidae (Family)
 Rhytiodus Roger, 1887 † accepted as Rytiodus Lartet, 1866 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Sirenia (Order) > Dugongidae (Family)

Rhytiphorus
 Rhytiphorus Meek, 1871 † accepted as Rhytiphorus Meek, 1871 † (Misspelling) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Rhytiphorus Meek, 1871 † accepted as Rhytiphorus Meek, 1871 † · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Rhytirhinus
 Rhytirhinus Agassiz, 1845 accepted as Rhythirrinus Schönherr, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Rhytirhinus Schoenherr, 1833 accepted as Rhythirrinus Schönherr, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)

Rhytis
     Rhytis Mayer, 1839 accepted as Rhytis Mayer, 1839 (unassessed) · Animalia (Kingdom) > Nematoda (Phylum) > Nematoda (awaiting allocation) (Class) > Nematoda (awaiting allocation) (Order) > Nematoda (awaiting allocation) (Family)
 Rhytis Loureiro, 1790 accepted as Antidesma Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Phyllanthaceae (Family)
 Rhytis Zeder, 1803 accepted as Triaenophorus Rudolphi, 1793 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Pseudophyllidea (Order) > Triaenophoridae (Family)

Rhytisma
     Rhytisma Alderslade, 2000 · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Alcyonacea (Order) > Alcyoniidae (Family)
     Rhytisma E.M. Fries, 1818 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Rhytismatales (Order) > Rhytismataceae (Family)

Rhytisodon
     Rhytisodon Paolo, 1897 accepted as Rhytisodon Paolo, 1897 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Mammalia (awaiting allocation) (Order) > Mammalia (awaiting allocation) (Family)
     Rhytisodon Costa, 1853 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Cetacea (Order) > Cetacea (awaiting allocation) (Family)

Rhytistylus
     Rhytistylus Fieber, 1872 accepted as Rhytistylus Fieber, 1872 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)
     Rhytistylus Fieber, 1875 accepted as Rhytistylus Fieber, 1875 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Cicadellidae (Family)

Rhytoniglossum
     Rhytoniglossum J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Rhytoniglossum J.M.H. Shaw, 2004 accepted as Rhytoniglossum J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Rhytophorus
     Rhytophorus Meek, 1877 † accepted as Rhytophorus Meek, 1877 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Rhytophorus Meek, 1871 † accepted as Rhytophorus Meek, 1871 † · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Rhyzaena
 Rhyzaena Wagner, 1841 accepted as Suricata Desmarest, 1804 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Herpestidae (Family)
 Rhyzaena Smuts, 1832 accepted as Suricata Desmarest, 1804 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Carnivora (Order) > Herpestidae (Family)

Rhyzobius
     Rhyzobius Stephens, 1829 accepted as Rhyzobius Stephens, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coccinellidae (Family)
 Rhyzobius Ferrari, 1872 accepted as Rhyzobius Ferrari, 1872 (Misspelling) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Aphididae (Family)
 Rhyzobius Stephens, 1831 accepted as Rhyzobius Stephens, 1829 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coccinellidae (Family)

Rhyzodes
 Rhyzodes Guérin-Ménéville, 1844 accepted as Rhysodes Dalman, 1823 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Rhysodidae (Family)
 Rhyzodes Chevrolat, 1848 accepted as Rhysodes Germar, 1822 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Ribaldia
     Ribaldia Dyar, 1916 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Notodontidae (Family)
 Ribaldia Ciferri, 1954 accepted as Asteroma A.P. de Candolle, 1815 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Diaporthales (Order) > Gnomoniaceae (Family)

Ribeirina
     Ribeirina Parker, 1934 accepted as Ribeirina Parker, 1934 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Anura (Order) > Microhylidae (Family)
     Ribeirina Billings, 1865 † · Animalia (Kingdom) > Mollusca (Phylum) > Rostroconchia (Class) > Ribeirioida (Order) > Ribeiriidae (Family)

Ricardia
 Ricardia Adanson, 1763 accepted as Richardia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
 Ricardia Derbès & Solier, 1856 accepted as Erythrocystis J.Agardh, 1876 (synonym) · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Ceramiales (Order) > Rhodomelaceae (Family)

Ricasolia
 Ricasolia G. De Notaris, 1846 accepted as Lobaria (J.C.D. Schreber) G.F. Hoffmann, 1796 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Peltigerales (Order) > Lobariaceae (Family)
 Ricasolia A. Massalongo, 1855 accepted as Solenopsora A. Massalongo, 1855 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Lecanorales (Order) > Lecanorales incertae sedis (Family)

Riccia
     Riccia Travassos, 1953 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Arctiidae (Family)
     Riccia Linnaeus, 1753 · Plantae (Kingdom) > Marchantiophyta (Phylum) > Marchantiopsida (Class) > Marchantiales (Order) > Ricciaceae (Family)

Ricciopsis
     Ricciopsis B. Lundblad, 1954 † · Plantae (Kingdom) > Marchantiophyta (Phylum) > Marchantiopsida (Class) > Marchantiales (Order) > Ricciaceae (Family)
 Ricciopsis G.P. Radczenko, 1956 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiidae (awaiting allocation) (Order) > Polypodiidae (awaiting allocation) (Family)

Richardia
     Richardia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
     Richardia Robineau-Desvoidy, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Richardiidae (Family)
 Richardia Kunth, 1818 accepted as Zantedeschia K.P.J. Sprengel, 1826 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Alismatales (Order) > Araceae (Family)
 Richardia Buszko, 1978 accepted as Buszkoiana Koçak, 1981 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Pterophoridae (Family)

Richardsonia
 Richardsonia Castelnau, 1872 accepted as Paristiopterus Bleeker, 1876 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Pentacerotidae (Family)
 Richardsonia Kunth, 1818 accepted as Richardia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
 Richardsonia Steindachner, 1866 accepted as Retropinna Gill, 1862 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Osmeriformes (Order) > Retropinnidae (Family)

Richea
     Richea R. Brown, 1810 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericaceae (Family)
 Richea Labillardière, 1800 accepted as Richea Labillardière, 1800 (nomen rejiciendum) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Richea C.E.O. Kuntze, 1891 accepted as Cassipourea Aublet, 1775 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Rhizophoraceae (Family)

Richia
     Richia Grote, 1887 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
 Richia Coker, 1926 accepted as Etheostoma Rafinesque, 1819 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Percidae (Family)

Richterella
     Richterella Hessler, 1965 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Proetida (Order) > Proetidae (Family)
 Richterella Avram, 1974 † accepted as Lemencia Donze & Enay, 1961 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Berriasellidae (Family)

Richteria
     Richteria Girault, 1920 accepted as Richteria Girault, 1920 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Mymaridae (Family)
     Richteria Karelin & Kirilov, 1842 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Richteria Tode, 1966 † accepted as Richteria Tode, 1966 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Membracidae (Family)
 Richteria Oloriz, 1978 † accepted as Lemencia Donze & Enay, 1961 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Berriasellidae (Family)
     Richteria Jones, 1874 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Myodocopida (Order) > Bolbozoidae (Family)

Richtersia
     Richtersia Steiner, 1920 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Selachinematida (Order) > Selachinematidae (Family)
 Richtersia Pilato & Binda, 1987 accepted as Richtersius Pilato & Binda, 1990 · Animalia (Kingdom) > Tardigrada (Phylum) > Eutardigrada (Class) > Parachela (Order) > Macrobiotidae (Family)

Richtersveldia
     Richtersveldia U. Meve & S. Liede, 2002 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
     Richtersveldia Bellamy, 2005 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)

Richthofenia
     Richthofenia Kayser, 1881 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Richthofeniidae (Family)
     Richthofenia Hosseus, 1907 accepted as Richthofenia Hosseus, 1907 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Rafflesiaceae (Family)
     Richthofenia Modell, 1964 † accepted as Richthofenia Modell, 1964 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)

Ricinella
 Ricinella J. Müller Arg., 1865 accepted as Adelia Linnaeus, 1759 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
 Ricinella Schumacher, 1817 accepted as Drupa Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Muricidae (Family)

Ricinoides
 Ricinoides Moench, 1794 accepted as Chrozophora A.H.L. Jussieu, 1824 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
     Ricinoides P. Miller, 1754 accepted as Ricinoides P. Miller, 1754 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
 Ricinoides Gagnebin, 1755 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
     Ricinoides Ewing, 1929 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Ricinulei (Order) > Ricinoididae (Family)

Ricinulus
     Ricinulus Ewing, 1929 accepted as Ricinulus Ewing, 1929 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
 Ricinulus Desmarest in Chenu, 1859 accepted as Drupa Röding, 1798 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Muricidae (Family)

Ricinus
     Ricinus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
     Ricinus de Geer, 1778 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Phthiraptera (Order) > Ricinidae (Family)
 Ricinus accepted as Ixodes Latreille, 1795 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Ixodida (Order) > Ixodidae (Family)

Riddellia
     Riddellia Rafinesque, 1838 accepted as Riddellia Rafinesque, 1838 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
 Riddellia Nuttall, 1841 accepted as Psilostrophe A.P. de Candolle, 1838 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Ridleya
     Ridleya Ancey, 1901 accepted as Ridleya Ancey, 1901 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Ridleya (J.D. Hooker) Pfitzer in Engler & Prantl, 1900 accepted as Thrixspermum Loureiro, 1790 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Ridleya Delage in Delage & Hérouard, 1899 accepted as Ridleia Dendy, 1888 · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Hadromerida (Order) > Polymastiidae (Family)

Riedelia
     Riedelia Mesnil, 1942 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Riedelia Shilejko, 1972 accepted as Riedelia Shilejko, 1972 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Hygromiidae (Family)
     Riedelia D. Oliver, 1883 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Zingiberales (Order) > Zingiberaceae (Family)
 Riedelia Chamisso, 1832 accepted as Riedelia Chamisso, 1832 (nomen rejiciendum) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Verbenaceae (Family)
 Riedelia C.F. Meisner in C.F.P. Martius, 1863 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericales (awaiting allocation) (Family)
 Riedelia F. Thiergart & U. Frantz, 1963 † accepted as · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)
 Riedelia K.S. Kunth, 1833 accepted as Arundinella Raddi, 1823 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Riedelia A.P. Jousé & V.S. Sheshukova-Poretzkaya, 1971 accepted as Williamriedelia S. Blanco & C.E. Wetzel, 2016 (junior homonym) · Chromista (Kingdom) > Ochrophyta (Phylum) > Bacillariophyceae (Class) > Hemiaulales (Order) > Hemiaulaceae (Family)

Riedeliella
     Riedeliella Schlickum & Strauch, 1975 † accepted as Riedeliella Schlickum & Strauch, 1975 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
     Riedeliella Harms, 1903 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Riedelius
     Riedelius Hudec, 1961 accepted as Riedelius Hudec, 1961 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
     Riedelius de Wever, 1982 † accepted as Riedelius de Wever, 1982 † (unassessed) · Protozoa (Kingdom) > (Phylum) > (Class) > Sarcomastigota (awaiting allocation) (Order) > Sarcomastigota (awaiting allocation) (Family)

Riedlea
 Riedlea Mirbel in Lamarck & Mirbel, 1802 accepted as Onoclea Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Onocleaceae (Family)
 Riedlea Ventenat, 1807 accepted as Melochia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)

Riessia
 Riessia Klotzsch, 1854 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Cucurbitales (Order) > Begoniaceae (Family)
     Riessia Fresenius, 1852 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricomycetes incertae sedis (Order) > Agaricomycetes incertae sedis (Family)

Riftus
     Riftus Jankowski, 1981 accepted as Riftus Jankowski, 1981 (unassessed) · Chromista (Kingdom) > Ciliophora (Phylum) > Ciliophora (awaiting allocation) (Class) > Ciliophora (awaiting allocation) (Order) > Ciliophora (awaiting allocation) (Family)
     Riftus Yankovskij, 1982 accepted as Riftus Yankovskij, 1982 (unassessed) · Chromista (Kingdom) > Ciliophora (Phylum) > Ciliophora (awaiting allocation) (Class) > Ciliophora (awaiting allocation) (Order) > Ciliophora (awaiting allocation) (Family)

Rigauxia
     Rigauxia Cossmann, 1885 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neotaenioglossa (Order) > Neotaenioglossa (awaiting allocation) (Family)
     Rigauxia Brice, 1988 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Echinospiriferidae (Family)

Rigbyella
     Rigbyella Stehli, 1956 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Rigbyellidae (Family)
     Rigbyella Mostler & Mosleh-Yazdi, 1976 † · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Hexactinellida (awaiting allocation) (Order) > Hexactinellida (awaiting allocation) (Family)

Rigidella
 Rigidella Lindley, 1840 accepted as Tigridia A.L. Jussieu, 1789 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Iridaceae (Family)
     Rigidella Öpik, 1937 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Palaeocopida (Order) > Ctenonotellidae (Family)

Rileya
     Rileya Howard, 1888 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Eurytomidae (Family)
     Rileya A. Funk, 1979 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
     Rileya von Huene, 1902 † accepted as Rileya von Huene, 1902 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Reptilia (awaiting allocation) (Order) > Reptilia (awaiting allocation) (Family)
 Rileya Olivier, 1911 accepted as Lucidota Laporte, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Lampyridae (Family)
 Rileya Brauer & Bergenstamm, 1893 accepted as Rileymyia Townsend, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
 Rileya Ashmead, 1888 accepted as Rileya Brauer & Bergenstamm, 1893 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
 Rileya Melichar, 1906 accepted as Misodema Melichar, 1907 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Issidae (Family)

Rileyella
     Rileyella Townsend, 1909 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
 Rileyella Spratt, 2003 accepted as Yelirella Spratt, 2010 (preoccupied) · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Raillietiellida (Order) > Raillietiellidae (Family)

Rima
     Rima Pallary, 1910 accepted as Rima Pallary, 1910 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Rima Needham, 1933 accepted as Rimanella Needham, 1934 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Odonata (Order) > Amphipterygidae (Family)

Rimaria
 Rimaria H.M.L. Bolus, 1937 accepted as Vanheerdea H.M.L. Bolus ex H.E.K. Hartmann, 1992 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Aizoaceae (Family)
 Rimaria N.E. Brown, 1925 accepted as Gibbaeum A.H. Haworth ex N.E. Brown, 1922 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Aizoaceae (Family)
     Rimaria Kützing, 1844 · Chromista (Kingdom) > Ochrophyta (Phylum) > Bacillariophyceae (Class) > Fragilariales (Order) > Fragilariaceae (Family)

Rimelia
     Rimelia M.E. Hale & A. Fletcher, 1990 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Lecanorales (Order) > Parmeliaceae (Family)
 Rimelia Oppenheim, 1906 † accepted as Rimella Agassiz in Sowerby, 1841 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Strombidae (Family)

Rimella
     Rimella Rafinesque, 1819 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricomycetes incertae sedis (Order) > Agaricomycetes incertae sedis (Family)
 Rimella Schmidt, 1879 accepted as Exsuperantia Özdikmen, 2009 (preoccupied) · Animalia (Kingdom) > Porifera (Phylum) > Demospongea (Class) > Lithistida (Order) > Phymaraphiniidae (Family)
     Rimella Agassiz in Sowerby, 1841 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Rostellariidae (Family)

Rimicola
     Rimicola Jordan & Evermann in Jordan, 1896 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Gobiesociformes (Order) > Gobiesocidae (Family)
     Rimicola Böhmig, 1908 · Animalia (Kingdom) > Xenacoelomorpha (Phylum) > Acoelomorpha incertae sedis (Class) > Acoela (Order) > Isodiametridae (Family)

Rimirhynchia
     Rimirhynchia Buckman, 1917 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Rhynchonellidae (Family)
     Rimirhynchia Buckman, 1914 † accepted as Rimirhynchia Buckman, 1917 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Rhynchonellidae (Family)

Rimula
     Rimula Velenovský, 1934 · Fungi (Kingdom) > Ascomycota (Phylum) > Leotiomycetes (Class) > Helotiales (Order) > Helotiales incertae sedis (Family)
     Rimula Defrance, 1827 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Vetigastropoda (Order) > Fissurellidae (Family)
     Rimula Lowe, 1852 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Vetigastropoda (Order) > Fissurellidae (Family)

Rimularia
     Rimularia Nylander, 1868 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Agyriales (Order) > Trapeliaceae (Family)
 Rimularia Bronn, 1838 accepted as Rimula Defrance, 1827 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Vetigastropoda (Order) > Fissurellidae (Family)

Rindgea
     Rindgea Johnson, 1993 accepted as Rindgea Johnson, 1993 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lycaenidae (Family)
     Rindgea Ferguson, 2008 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Geometridae (Family)

Rinella
     Rinella Poletaeva & Egorova in Egorova & Savitsky, 1969 † accepted as Rinella Poletaeva & Egorova in Egorova & Savitsky, 1969 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)
 Rinella Paetel, 1875 accepted as Rinella Paetel, 1875 (Misspelling) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Vetigastropoda (Order) > Turbinidae (Family)
     Rinella Bory de St. Vincent, 1827 accepted as Rinella Bory de St. Vincent, 1827 (unassessed) · Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)

Riopa
     Riopa Gray, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Scincidae (Family)
 Riopa D.A. Reid, 1969 accepted as Poria Persoon, 1794 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Polyporales (Order) > Polyporaceae (Family)

Riparia
     Riparia Forster, 1817 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Hirundinidae (Family)
     Riparia Herrmannsen, 1852 accepted as Riparia Herrmannsen, 1852 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Ripidium
 Ripidium Trinius, 1820 accepted as Saccharum Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Ripidium Bernhardi, 1801 accepted as Schizaea J.E. Smith, 1793 · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Schizaeales (Order) > Schizaeaceae (Family)

Ripiphorus
     Ripiphorus Bosc, 1791 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ripiphoridae (Family)
 Ripiphorus Fabricius, 1792 accepted as Metoecus Dejean, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ripiphoridae (Family)

Risbecia
     Risbecia Heraty, 2002 accepted as Risbecia Heraty, 2002 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Eucharitidae (Family)
 Risbecia Odhner, 1934 accepted as Hypselodoris Stimpson, 1855 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Chromodorididae (Family)
 Risbecia Kosuge, 1966 accepted as Differoforis Kosuge, 2008 (non Odhner, 1934) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ptenoglossa (Order) > Triphoridae (Family)

Risella
     Risella Gray, 1840 accepted as Risella Gray, 1840 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Littorinidae (Family)
     Risella Carter, 1993 † accepted as Risella Carter, 1993 † (unassessed) · Protozoa (Kingdom) > (Phylum) > (Class) > Sarcomastigota (awaiting allocation) (Order) > Sarcomastigota (awaiting allocation) (Family)
 Risella Gray, 1842 accepted as Bembicium Philippi, 1846 (Declared nomen oblitum by Reid (1988)) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Littorinidae (Family)

Risellopsis
     Risellopsis Kesteven, 1902 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Littorinidae (Family)
 Risellopsis Cossman, 1908 † accepted as Risselloidea Cossmann, 1909 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Archaeogastropoda (Order) > Archaeogastropoda (awaiting allocation) (Family)

Riseriellus
     Riseriellus Rogers, Junoy, Gibson & Thorpe, 1993 · Animalia (Kingdom) > Nemertea (Phylum) > Anopla (Class) > Heteronemertea (Order) > Lineidae (Family)
     Riseriellus Rogers, Junoy, Gibson & Thorpe, 1993 accepted as Riseriellus Rogers, Junoy, Gibson & Thorpe, 1993 (unassessed) · Animalia (Kingdom) > Nemertea (Phylum) > Nemertea (awaiting allocation) (Class) > Nemertea (awaiting allocation) (Order) > Nemertea (awaiting allocation) (Family)

Risophilus
 Risophilus Leach, 1815 accepted as Demetrias Bonelli, 1810 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
 Risophilus accepted as Peliocypas Schmidt-Goebel, 1846 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)

Rissoa
 Rissoa Michaelis & Scherk, 1847 accepted as Rossia Owen, 1834 · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Sepioidea (Order) > Sepiolidae (Family)
     Rissoa Desmarest, 1814 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Rissoidae (Family)
 Rissoa Arnott, 1836 accepted as Atalantia Correa, 1805 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Rutaceae (Family)

Rissoella
     Rissoella J.Agardh, 1849 · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Gigartinales (Order) > Rissoellaceae (Family)
     Rissoella Gray, 1847 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Heterostropha (Order) > Rissoellidae (Family)

Ristella
     Ristella Gray, 1839 · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Squamata (Order) > Scincidae (Family)
 Ristella Prévot, 1938 accepted as Bacteroides Castellani & Chalmers, 1919 (Approved Lists, 1980) emend. Shah & Collins, 1989 · Bacteria (Kingdom) > Bacteroidetes (Phylum) > Bacteroidia (Class) > Bacteroidales (Order) > Bacteroidaceae (Family)

Rittera
 Rittera Rafinesque, 1840 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Dipsacales (Order) > Caprifoliaceae (Family)
 Rittera Schreber, 1789 accepted as Swartzia Schreber, 1791 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Ritteria
     Ritteria Kramer, 1877 accepted as Ritteria Kramer, 1877 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
     Ritteria Deland, Cameron, Rao, Ritter & Bullock, 2010 · Animalia (Kingdom) > Hemichordata (Phylum) > Enteropneusta (Class) > (Order) > Harrimaniidae (Family)
 Ritteria Metcalf, 1918 accepted as Ritteriella Metcalf, 1919 (preoccupied) · Animalia (Kingdom) > Chordata (Phylum) > Thaliacea (Class) > Salpida (Order) > Salpidae (Family)

Rituichnus
     Rituichnus Yang in Yang, Song & Liang, 1982 † accepted as Rituichnus Yang in Yang, Song & Liang, 1982 † (unassessed) · Animalia (Kingdom) > Problematica (Phylum) > Problematica (awaiting allocation) (Class) > Problematica (awaiting allocation) (Order) > Problematica (awaiting allocation) (Family)
     Rituichnus Yang in Yang, Song & Liang, 1986 † accepted as Rituichnus Yang in Yang, Song & Liang, 1986 † (unassessed) · Animalia (Kingdom) > Problematica (Phylum) > Problematica (awaiting allocation) (Class) > Problematica (awaiting allocation) (Order) > Problematica (awaiting allocation) (Family)

Rivicola
     Rivicola Fitzinger, 1833 accepted as Rivicola Fitzinger, 1833 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Rivicola Sheu et al., 2014 · Bacteria (Kingdom) > Proteobacteria (Phylum) > Betaproteobacteria (Class) > Neisseriales (Order) > Neisseriaceae (Family)

Rivularia
     Rivularia Heude, 1890 accepted as Rivularia Heude, 1890 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Architaenioglossa (Order) > Viviparidae (Family)
     Rivularia A.W. Roth, 1797 accepted as Rivularia A.W. Roth, 1797 (unassessed) · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chaetophorales (Order) > Chaetophoraceae (Family)
     Rivularia C.Agardh ex Bornet & Flahault, 1886 · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Nostocales (Order) > Rivulariaceae (Family)

Rivulicola
     Rivulicola K.D. Hyde, 1997 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Sordariales (Order) > Lasiosphaeriaceae (Family)
     Rivulicola Calder, 1996 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Elateridae (Family)

Rivulina
     Rivulina Fleuriau de Belleville, 1820 accepted as Rivulina Fleuriau de Belleville, 1820 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Rivulina Lea, 1851 accepted as Rivulina Lea, 1851 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Thiaridae (Family)
 Rivulina Westerlund, 1873 accepted as Pisidium C. Pfeiffer, 1821 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Sphaeriidae (Family)

Robergia
     Robergia Schreber, 1789 accepted as Robergia Schreber, 1789 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Oxalidales (Order) > Connaraceae (Family)
     Robergia Wiman, 1905 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Asaphida (Order) > Remopleurididae (Family)

Robertella
     Robertella † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Hippuritida (Order) > Hippuritida (awaiting allocation) (Family)
     Robertella Mineo, 2004 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Scelionidae (Family)

Robertgurneya
     Robertgurneya Apostolov & Marinov, 1988 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Miraciidae (Family)
     Robertgurneya Lang, 1948 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Miraciidae (Family)
     Robertgurneya Lang, 1944 accepted as Robertgurneya Apostolov & Marinov, 1988 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Miraciidae (Family)

Robertia
 Robertia Choubert, 1932 † accepted as · Plantae (Kingdom) > Algae (awaiting allocation) (Phylum) > Algae (awaiting allocation) (Class) > Algae (awaiting allocation) (Order) > Algae (awaiting allocation) (Family)
     Robertia Boonstra, 1948 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Therapsida (Order) > Robertiidae (Family)
 Robertia Scopoli, 1777 accepted as Sideroxylon Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Sapotaceae (Family)
 Robertia Travassos & Kloss, 1961 accepted as Traklosia Bernard & Phillips, 2015 (junior homonym) · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Rhabditida (Order) > Traklosiidae (Family)
 Robertia Saaristo, 2006 accepted as Seycellesa Koçak & Kemal, 2008 (junior homonym) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Theridiidae (Family)
 Robertia Mérat, 1812 accepted as Eranthis R.A. Salisbury, 1807 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ranunculales (Order) > Ranunculaceae (Family)
 Robertia A. Richard ex A.P. de Candolle in Lamarck & A.P. de Candolle, 1815 accepted as Hypochaeris Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Robertiella
 Robertiella Hanks, 1907 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Geraniales (Order) > Geraniaceae (Family)
     Robertiella Mineo, 2013 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Scelionidae (Family)

Robertsella
     Robertsella Chen & Shi, 2003 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Strophomenata (Class) > Productida (Order) > Rugosochonetidae (Family)
     Robertsella Evenhuis, 1978 accepted as Robertsella Evenhuis, 1978 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Mythicomyiidae (Family)
     Robertsella Guinot, 1969 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Pseudorhombilidae (Family)

Robertsonia
     Robertsonia A.H. Haworth, 1812 accepted as Robertsonia A.H. Haworth, 1812 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Saxifragales (Order) > Saxifragaceae (Family)
     Robertsonia Brady, 1880 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Miraciidae (Family)
     Robertsonia Brady, 1878 accepted as Robertsonia Brady, 1880 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Harpacticoida (Order) > Miraciidae (Family)

Robillarda
     Robillarda P.A. Saccardo, 1882 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
 Robillarda Castagne, 1845 accepted as Pestalotiopsis R.L. Steyaert, 1949 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Xylariales (Order) > Amphisphaeriaceae (Family)

Robinia
     Robinia Pankov, Webster, Blasco-Costa, Gibson, Littlewood, Balbuena & Kostadinova, 2006 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Azygiida (Order) > Hemiuridae (Family)
     Robinia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
     Robinia Finks, Hollocher & Thies, 2011 † · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Lychniscosida (Order) > Camerospongiidae (Family)

Robinioxylon
     Robinioxylon G. Falqui, 1907 † accepted as Robinioxylon G. Falqui, 1907 † (unassessed) · Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)
 Robinioxylon W.R. Müller-Stoll & E. Mädel, 1967 † accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)

Robinsonella
     Robinsonella J.N. Rose & E.G. Baker, 1897 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
     Robinsonella Moisséiev, 1936 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Wellerellidae (Family)
     Robinsonella Lacroix, 1993 accepted as Robinsonella Lacroix, 1993 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)

Robinsonia
 Robinsonia Scopoli, 1777 accepted as Robinsonia Scopoli, 1777 (nomen rejiciendum) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Ochnaceae (Family)
     Robinsonia Grote, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Arctiidae (Family)
 Robinsonia A.P. de Candolle, 1833 accepted as Senecio Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Robinsonia G. Nevill & H. Nevill, 1869 accepted as Neclarina Iredale, 1943 (Invalid: junior homonym of Robinsonia Grote, 1865 [Lepidoptera]; Neclarina is a replacement name) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Architaenioglossa (Order) > Viviparidae (Family)

Robsonia
     Robsonia Cambridge, 1880 accepted as Robsonia Cambridge, 1880 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Arachnida (awaiting allocation) (Order) > Arachnida (awaiting allocation) (Family)
 Robsonia (Berlandier) H.G.L. Reichenbach, 1837 accepted as Ribes Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Saxifragales (Order) > Grossulariaceae (Family)

Robus
 Robus Zittel, 1893 † accepted as Kobus Smith, 1840 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)
 Robus † accepted as Gibbula Risso, 1826 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Vetigastropoda (Order) > Trochidae (Family)

Robynsia
     Robynsia Hutchinson in Hutchinson & Dalziel, 1931 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
 Robynsia Martens & Galeotti, 1843 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Robynsia Drapiez in Lemaire, 1841 accepted as Robynsia Drapiez in Lemaire, 1841 (nomen rejiciendum) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Amaryllidaceae (Family)

Roccardia
     Roccardia Necker ex Rafinesque, 1838 accepted as Roccardia Necker ex Rafinesque, 1838 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Roccardia Necker ex Voss in Vilmorin, 1894 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Roccellaria
 Roccellaria Schaufuss, 1869 accepted as Roccellaria Schaufuss, 1869 (Misspelling) · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Myoida (Order) > Gastrochaenidae (Family)
     Roccellaria O.V. Darbishire, 1897 · Fungi (Kingdom) > Ascomycota (Phylum) > Arthoniomycetes (Class) > Arthoniales (Order) > Roccellaceae (Family)

Rochea
 Rochea Scopoli, 1777 accepted as Rochea Scopoli, 1777 (nomen rejiciendum) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Rochea A.P. de Candolle, 1802 accepted as Crassula Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Saxifragales (Order) > Crassulaceae (Family)

Rochefortia
     Rochefortia O. Swartz, 1788 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Boraginales (Order) > Boraginaceae (Family)
 Rochefortia Vélain, 1877 accepted as Mysella Angas, 1877 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Lasaeidae (Family)

Rochelia
     Rochelia H.G.L. Reichenbach, 1824 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Boraginales (Order) > Boraginaceae (Family)
 Rochelia J.J. Roemer & J.A. Schultes, 1819 accepted as Rochelia J.J. Roemer & J.A. Schultes, 1819 (nomen rejiciendum) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Boraginales (Order) > Boraginaceae (Family)

Rochia
     Rochia Gray, 1857 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Archaeogastropoda (Order) > Archaeogastropoda (awaiting allocation) (Family)
 Rochia Munari, 1975 † accepted as Lyrodus Gould, 1870 (non Gray, 1857) · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Myoida (Order) > Teredinidae (Family)

Rochiana
 Rochiana Munari, 1976 † accepted as Lyrodus Gould, 1870 (non Servain, 1881) · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Myoida (Order) > Teredinidae (Family)
 Rochiana Servain, 1881 accepted as Radix Montfort, 1810 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Hygrophila (Order) > Lymnaeidae (Family)

Rochonia
     Rochonia Distant, 1913 accepted as Rochonia Distant, 1913 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Rochonia A.P. de Candolle, 1836 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)

Rodriguesia
     Rodriguesia Dyar, 1912 accepted as Rodriguesia Dyar, 1912 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
 Rodriguesia A.T. Brongniart, 1843 accepted as Rodriguezia Ruiz & Pavon, 1794 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Rodriguezia
     Rodriguezia Ruiz & Pavon, 1794 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Rodriguezia Bott, 1969 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Trichodactylidae (Family)

Rodrumnia
     Rodrumnia J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Rodrumnia J.M.H. Shaw, 2004 accepted as Rodrumnia J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Rodschiedia
     Rodschiedia P.G. Gaertner, B. Meyer & Scherbius, 1800 accepted as Rodschiedia P.G. Gaertner, B. Meyer & Scherbius, 1800 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Brassicaceae (Family)
 Rodschiedia Miquel, 1845 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Polygalaceae (Family)

Rodwayia
     Rodwayia Lea, 1907 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Ptiliidae (Family)
     Rodwayia Cameron, 1911 accepted as Rodwayia Cameron, 1911 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Roebuckia
 Roebuckia P.S. Short, 2014 accepted as Roebuckiella P.S. Short, 2015 (Preoccupied by Roebuckia S. McLoughlin, 1996, a fossil fern) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Roebuckia S. McLoughlin, 1996 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Polypodiales (Order) > Pteridaceae (Family)

Roemerella
     Roemerella Hall & Clarke, 1892 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Lingulata (Class) > Linguliporida (Order) > Discinidae (Family)
     Roemerella Akopyan in Akopyan, Kryachkova & Pchelintzev, 1969 † accepted as Roemerella Akopyan in Akopyan, Kryachkova & Pchelintzev, 1969 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
     Roemerella Hall & Clarke, 1889 † accepted as Roemerella Hall & Clarke, 1892 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Lingulata (Class) > Linguliporida (Order) > Discinidae (Family)

Roemeria
     Roemeria Milne-Edwards & Haime, 1851 † · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Tabulata (Order) > Syringoporidae (Family)
     Roemeria Medikus, 1792 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ranunculales (Order) > Papaveraceae (Family)
 Roemeria Raddi, 1818 accepted as · Plantae (Kingdom) > Marchantiophyta (Phylum) > Jungermanniopsida (Class) > Metzgeriales (Order) > Aneuraceae (Family)
 Roemeria F.J.A.N. Unger in F. Roemer, 1852 † accepted as · Plantae (Kingdom) > Plantae (awaiting allocation) (Phylum) > Plantae (awaiting allocation) (Class) > Plantae (awaiting allocation) (Order) > Plantae (awaiting allocation) (Family)
 Roemeria Moench, 1794 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)
     Roemeria L. Trattinnick ex A.P. de Candolle, 1821 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Capparaceae (Family)
     Roemeria A.W. Dennstedt, 1818 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Goodeniaceae (Family)
 Roemeria J.J. Roemer & J.A. Schultes, 1817 accepted as Diarrhena Palisot de Beauvois, 1812 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)
 Roemeria Thunberg, 1798 accepted as Sideroxylon Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Sapotaceae (Family)
 Roemeria Koch, 1881 † accepted as Kochia Frech, 1891 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Pterioida (Order) > Pterioida (awaiting allocation) (Family)

Roeperia
 Roeperia F. von Mueller, 1857 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Capparaceae (Family)
 Roeperia K.P.J. Sprengel, 1826 accepted as Ricinocarpos Desfontaines, 1817 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)

Roeselia
     Roeselia Hübner, 1825 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Nolidae (Family)
 Roeselia Robineau-Desvoidy, 1830 accepted as Ocytata Gistl, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Roesleria
     Roesleria Martins-Neto & Vulcano, 1989 accepted as Roesleria Martins-Neto & Vulcano, 1989 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Neuroptera (awaiting allocation) (Family)
     Roesleria Badonnel, 1963 accepted as Roesleria Badonnel, 1963 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Psocoptera (Order) > Psocoptera (awaiting allocation) (Family)
     Roesleria Thümen & Passerini, 1877 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Dothideomycetes incertae sedis (Order) > Roesleriaceae (Family)

Roeweria
     Roeweria Mello-Leitão, 1923 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Gonyleptidae (Family)
 Roeweria Lawrence, 1931 accepted as Lawrencella Strand, 1932 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Triaenonychidae (Family)

Rogeria
     Rogeria Teppner, 1922 † accepted as Rogeria Teppner, 1922 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Rogeria Emery, 1894 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Formicidae (Family)
     Rogeria J. Gay ex Delile in Cailliaud, 1827 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Pedaliaceae (Family)

Rogersia
     Rogersia Fontaine, 1889 † accepted as Rogersia Fontaine, 1889 † (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Proteales (Order) > Proteaceae (Family)
 Rogersia C.A. Shearer & J.L. Crane, 1976 accepted as Filosporella A. Nawawi, 1976 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Rohaniella
     Rohaniella Bouvier, 1927 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Saturniidae (Family)
     Rohaniella Laboissière, 1940 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Rohdea
     Rohdea A.W. Roth, 1821 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Asparagaceae (Family)
     Rohdea Kabata, 1992 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Cyclopoida (Order) > Chondracanthidae (Family)

Rohdendorfia
     Rohdendorfia Townsend, 1934 accepted as Rohdendorfia Townsend, 1934 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Calliphoridae (Family)
     Rohdendorfia Smirnov, 1924 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Syrphidae (Family)

Rohria
 Rohria M. Vahl, 1791 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Rohria Balogh & Mahunka, 1977 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Oribatida (Order) > Zetomotrichidae (Family)
     Rohria Schreber, 1789 accepted as Rohria Schreber, 1789 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Dichapetalaceae (Family)

Rohweria
     Rohweria Fouts, 1925 accepted as Rohweria Fouts, 1925 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Bethylidae (Family)
     Rohweria Malaise, 1935 accepted as Rohweria Malaise, 1935 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Tenthredinidae (Family)

Rojasia
     Rojasia Malme, 1905 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)
 Rojasia Sánchez Roig, 1951 † accepted as Schizobrissus Pomel, 1869 † (subjective junior synonym) · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Spatangoida (Order) > Brissidae (Family)

Rolandia
     Rolandia de Lacaze-Duthiers, 1900 · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Alcyonacea (Order) > Clavulariidae (Family)
 Rolandia Pruvot-Fol, 1951 accepted as Pruvotfolia Tardy, 1969 (invalid: junior homonym of Rolandia Lacaze-Duthiers, 1900 [Cnidaria]) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Nudibranchia (Order) > Facelinidae (Family)
 Rolandia Richards, 1962 accepted as Metaparagia Meade-Waldo, 1911 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Vespidae (Family)

Rollandia
     Rollandia Bonaparte, 1856 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Podicipediformes (Order) > Podicipedidae (Family)
 Rollandia Gaudichaud-Beaupré in Freycinet, 1829 accepted as Cyanea Gaudichaud-Beaupré in Freycinet, 1829 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Campanulaceae (Family)

Rollieria
     Rollieria Jeannet, 1951 † · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Ammonitida (Order) > Ammonoidea (awaiting allocation) (Family)
     Rollieria Cossmann, 1920 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Nuculida (Order) > Nuculida (awaiting allocation) (Family)
     Rollieria Cossmann, 1923 accepted as Rollieria Cossmann, 1923 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Rollieria Cossmann, 1924 † accepted as Rollierella Cossmann, 1924 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Arcticidae (Family)

Romaniella
     Romaniella Cushman, 1940 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Ichneumonidae (Family)
     Romaniella Doguzhaeva, 1971 † · Animalia (Kingdom) > Mollusca (Phylum) > Monoplacophora (Class) > Cyrtonellida (Order) > Cyrtolitidae (Family)
     Romaniella Eldredge & Branisa in Eldredge & Ormiston, 1979 † accepted as Romaniella Eldredge & Branisa in Eldredge & Ormiston, 1979 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Romanoa
     Romanoa Thirumalachar, 1954 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Hypocreales (Order) > Hypocreales incertae sedis (Family)
     Romanoa Trevisan, 1848 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)

Romellia
     Romellia Berlese, 1900 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Diaporthales (Order) > Togniniaceae (Family)
 Romellia Murrill, 1904 accepted as Phaeolus (Patouillard) Patouillard, 1900 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Polyporales (Order) > Fomitopsidaceae (Family)

Romeria
     Romeria Price, 1937 † · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Cotylosauria (Order) > Romeriidae (Family)
 Romeria Koch, 1881 † accepted as Kochia Frech, 1891 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Pterioida (Order) > Pterioida (awaiting allocation) (Family)
     Romeria M. Koczwara in Geitler, 1932 · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Synechococcales (Order) > Romeriaceae (Family)

Rondania
     Rondania Robineau-Desvoidy, 1850 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
 Rondania Bigot, 1854 accepted as Ula Haliday, 1833 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Limoniidae (Family)
 Rondania Jaennicke, 1867 accepted as Cyphomyia Wiedemann, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Stratiomyidae (Family)

Rondaniella
     Rondaniella Rübsaamen, 1916 accepted as Rondaniella Rübsaamen, 1916 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Cecidomyiidae (Family)
     Rondaniella Johannsen, 1909 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Mycetophilidae (Family)
     Rondaniella Del Guercio, 1918 accepted as Rondaniella Del Guercio, 1918 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Cecidomyiidae (Family)

Rondeletia
     Rondeletia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
     Rondeletia Goode & Bean, 1895 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Cetomimiformes (Order) > Rondeletiidae (Family)
 Rondeletia Naef, 1916 accepted as Rondeletiola Naef, 1921 · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Sepioidea (Order) > Sepiolidae (Family)
 Rondeletia Alessandrello, Bracchi & Riou, 2004 † accepted as Rondeletiana Alessandrello, Bracchi & Riou, 2004 † · Animalia (Kingdom) > Sipuncula (Phylum) > Sipuncula incertae sedis (Class) > Sipuncula incertae sedis (Order) > Sipuncula incertae sedis (Family)

Rondonia
     Rondonia Breuning, 1962 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Rondonia Travassos, 1920 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Atractidae (Family)

Rooseveltia
 Rooseveltia Jordan & Evermann in Jordan & Seale, 1906 accepted as Pristipomoides Bleeker, 1852 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Lutjanidae (Family)
 Rooseveltia O.F. Cook, 1939 accepted as Euterpe C.F.P. Martius, 1823 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Arecales (Order) > Arecaceae (Family)
 Rooseveltia Peckham, 1907 accepted as Ogdenia Peckham & Peckham, 1908 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Araneae (Order) > Salticidae (Family)

Rooseveltiella
 Rooseveltiella Eigenmann, 1915 accepted as Pygocentrus Müller & Troschel, 1844 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Characiformes (Order) > Serrasalmidae (Family)
 Rooseveltiella Fox, 1914 accepted as Xenopsylla Glinkiewicz, 1907 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Siphonaptera (Order) > Pulicidae (Family)

Ropalichrus
     Ropalichrus Paulian, 1980 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Hybosoridae (Family)
     Ropalichrus Allsopp, 1982 accepted as Ropalichrus Allsopp, 1982 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Hybosoridae (Family)

Ropalocera
     Ropalocera Meigen, 1820 accepted as Ropalocera Meigen, 1820 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Diptera (awaiting allocation) (Family)
 Ropalocera Filippi, 1854 accepted as Ropalocera Filippi, 1854 (Misspelling) · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Trematoda (awaiting allocation) (Order) > Trematoda (awaiting allocation) (Family)

Ropalophorus
     Ropalophorus Curtis, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Braconidae (Family)
 Ropalophorus Westwood, 1840 accepted as Ropalophorus Curtis, 1837 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Braconidae (Family)

Roparhynchus
     Roparhynchus Gupta & Kumari, 1970 accepted as Roparhynchus Gupta & Kumari, 1970 (unassessed) · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Trematoda (awaiting allocation) (Order) > Trematoda (awaiting allocation) (Family)
     Roparhynchus Gupta & Kumari, 1978 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Strigeidida (Order) > Bucephalidae (Family)

Roperia
     Roperia Grunow ex Pelletan, 1889 · Chromista (Kingdom) > Ochrophyta (Phylum) > Bacillariophyceae (Class) > Centrales (Order) > Hemidiscaceae (Family)
     Roperia Dall, 1898 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Muricidae (Family)

Rophobas
     Rophobas Motschoulsky, 1872 accepted as Rophobas Motschoulsky, 1872 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
 Rophobas Kaszab, 1980 accepted as Rhophobas Motschulsky, 1872 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Tenebrionidae (Family)

Ropicomorpha
 Ropicomorpha Breuning, 1958 accepted as Ropicomorphoides Breuning, 1968 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
 Ropicomorpha Pic, 1944 accepted as Sybra Pascoe, 1865 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)

Rorella
     Rorella J. Hill, 1756 accepted as Rorella J. Hill, 1756 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Droseraceae (Family)
 Rorella Rafinesque, 1837 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Droseraceae (Family)

Roridula
     Roridula N.L. Burman ex Linnaeus, 1764 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Roridulaceae (Family)
 Roridula Forsskål, 1775 accepted as Cleome Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Brassicales (Order) > Cleomaceae (Family)

Rosacea
     Rosacea Quoy & Gaimard, 1827 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Siphonophorae (Order) > Prayidae (Family)
 Rosacea Schneider, 1898 accepted as Praya Quoy & Gaimard in de Blainville, 1834 · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Siphonophorae (Order) > Prayidae (Family)

Rosalia
     Rosalia Audinet-Serville, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Rosalia Pospelov & Fedyanina, 1971 † accepted as Rosalia Pospelov & Fedyanina, 1971 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Trilobita (awaiting allocation) (Order) > Trilobita (awaiting allocation) (Family)

Rosaria
     Rosaria Carmichael ex Harvey, 1833 · Chromista (Kingdom) > Ochrophyta (Phylum) > Bacillariophyceae (Class) > Bacillariophyceae (awaiting allocation) (Order) > Bacillariophyceae (awaiting allocation) (Family)
 Rosaria N. Carter, 1922 accepted as · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Nostocales (Order) > Stigonemataceae (Family)
     Rosaria Dörfelt, A.R. Schmidt & J. Wunderlich, 2000 · Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > Fungi (awaiting allocation) (Class) > Fungi (awaiting allocation) (Order) > Fungi (awaiting allocation) (Family)

Roscoea
     Roscoea J.E. Smith, 1806 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Zingiberales (Order) > Zingiberaceae (Family)
 Roscoea Roxburgh, 1832 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiales (awaiting allocation) (Family)

Rosea
 Rosea C.F.P. Martius, 1825 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Amaranthaceae (Family)
     Rosea de Puytorac, 1994 accepted as Rosea de Puytorac, 1994 (unassessed) · Chromista (Kingdom) > Ciliophora (Phylum) > Oligohymenophorea (Class) > Apostomatida (Order) > Apostomatida (awaiting allocation) (Family)
 Rosea Klotzsch, 1853 accepted as Tricalysia A. Richard ex A.P. de Candolle, 1830 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
     Rosea Fabricius, 1759 accepted as Rosea Fabricius, 1759 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Saxifragales (Order) > Crassulaceae (Family)

Rosella
     Rosella A.M. Stanevitch in T.V. Jankauskas, 1989 † accepted as Rosella A.M. Stanevitch in T.V. Jankauskas, 1989 † (unassessed) · Protozoa (Kingdom) > Acritarcha (Phylum) > Acritarcha (awaiting allocation) (Class) > Acritarcha (awaiting allocation) (Order) > Acritarcha (awaiting allocation) (Family)
     Rosella Vassiljeva in Vasiljeva & Sayutina, 1988 † · Animalia (Kingdom) > Problematica (Phylum) > Coeloscleritophora (Class) > Sachitida (Order) > Sachitida (awaiting allocation) (Family)
 Rosella Cossmann, 1925 † accepted as Rosella Cossmann, 1925 † (Misspelling) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Vetigastropoda (Order) > Trochidae (Family)
 Rosella Whitehead in Clark, Whitehead & Warner, 1977 † accepted as Plocetes Leconte, 1876 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
 Rosella Andreeva, 1972 † accepted as Rossella Jones, 1978 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Pentamerida (Order) > Syntrophiidae (Family)
 Rosella accepted as Rossella Carter, 1872 · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Lyssacinosida (Order) > Rossellidae (Family)

Rosellinites
     Rosellinites R. Potonié, 1893 † · Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > Fungi (awaiting allocation) (Class) > Fungi (awaiting allocation) (Order) > Fungi (awaiting allocation) (Family)
     Rosellinites Meschinelli, 1892 † · Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > Fungi (awaiting allocation) (Class) > Fungi (awaiting allocation) (Order) > Fungi (awaiting allocation) (Family)

Rosenbergia
     Rosenbergia Ritsema, 1881 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cerambycidae (Family)
     Rosenbergia Oersted, 1856 accepted as Rosenbergia Oersted, 1856 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Polemoniaceae (Family)

Rosenbuschia
     Rosenbuschia J.T. Sterzel, 1895 † accepted as Rosenbuschia J.T. Sterzel, 1895 † (unassessed) · Plantae (Kingdom) > Algae (awaiting allocation) (Phylum) > Algae (awaiting allocation) (Class) > Algae (awaiting allocation) (Order) > Algae (awaiting allocation) (Family)
     Rosenbuschia Röder, 1882 accepted as Rosenbuschia Röder, 1882 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Rosenia
     Rosenia Kieffer, 1921 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Chironomidae (Family)
     Rosenia Schepman in Voeltzkow, 1914 accepted as Rosenia Schepman in Voeltzkow, 1914 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ptenoglossa (Order) > Eulimidae (Family)
     Rosenia Thunberg, 1800 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Rosenia Waagen & Wentzel, 1886 † accepted as Rosenia Waagen & Wentzel, 1886 † (unassessed) · Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
 Rosenia Hesse, 1916 accepted as Roseniella Thiele, 1931 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Clausiliidae (Family)
 Rosenia Nierstrasz, 1913 accepted as Pelseneeria Koehler & Vaney, 1908 (not Waagen & Wentzel, 1886: homonym) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Ptenoglossa (Order) > Eulimidae (Family)
 Rosenia Schawerda, 1922 accepted as Rotoa Strand, 1942 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Rossella
     Rossella Cameron, 1906 accepted as Rossella Cameron, 1906 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Rossella Carter, 1872 · Animalia (Kingdom) > Porifera (Phylum) > Hexactinellida (Class) > Lyssacinosida (Order) > Rossellidae (Family)
 Rossella Jones, 1978 † accepted as Nanukidium Jones, 1979 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Pentamerida (Order) > Pentameridae (Family)

Rossia
     Rossia M. Voigt, 1960 · Chromista (Kingdom) > Ochrophyta (Phylum) > Bacillariophyceae (Class) > Naviculales (Order) > Sellaphoraceae (Family)
     Rossia Bonaparte, 1838 accepted as Rossia Bonaparte, 1838 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Rossia Theobald, 1902 accepted as Rossia Theobald, 1902 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Culicidae (Family)
     Rossia Owen, 1834 · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Sepioidea (Order) > Sepiolidae (Family)
 Rossia Anderson, 1992 accepted as Arossella Anderson, 1993 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Sessilia (Order) > Pyrgomatidae (Family)

Rossiella
     Rossiella T.V. Desikachary & C.L. Maheshwari, 1958 † · Chromista (Kingdom) > Ochrophyta (Phylum) > Bacillariophyceae (Class) > Cymatosirales (Order) > Cymatosiraceae (Family)
 Rossiella Obenberger, 1942 accepted as Chalcophorella Kerremans, 1903 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Buprestidae (Family)
 Rossiella Makar'eva, 1979 † accepted as Rossielella Aescht, 2001 † · Chromista (Kingdom) > Ciliophora (Phylum) > Ciliophora (awaiting allocation) (Class) > Ciliophora (awaiting allocation) (Order) > Ciliophora (awaiting allocation) (Family)
 Rossiella Nuttall, 1912 accepted as Babesia Starcovivi, 1893 · Chromista (Kingdom) > Miozoa (Phylum) > Coccidiomorphea (Class) > Piroplasmida (Order) > Babesiidae (Family)

Rossmassleriana
     Rossmassleriana Bourguignat, 1881 accepted as Rossmassleriana Bourguignat, 1881 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Rossmassleriana Locard, 1890 accepted as Rossmassleriana Locard, 1890 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Rossmässleriana
 Rossmässleriana Locard, 1890 accepted as Rossmassleriana Locard, 1890 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
 Rossmässleriana Bourguignat, 1881 accepted as Rossmassleriana Bourguignat, 1881 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Rossophyllum
     Rossophyllum Stuckenberg, 1888 † accepted as Rossophyllum Stuckenberg, 1888 † (unassessed) · Animalia (Kingdom) > Cnidaria (Phylum) > Cnidaria (awaiting allocation) (Class) > Cnidaria (awaiting allocation) (Order) > Cnidaria (awaiting allocation) (Family)
     Rossophyllum Grant, 1958 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)

Rostafinskia
     Rostafinskia Spegazzini, 1880 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Dothideomycetes incertae sedis (Order) > Dothideomycetes incertae sedis (Family)
 Rostafinskia Raciborski, 1884 accepted as Comatricha Preuss, 1851 · Protozoa (Kingdom) > Amoebozoa (Phylum) > Myxogastrea (Class) > Fuscisporida (Order) > Stemonitidae (Family)

Rostellaria
     Rostellaria C.F. Gaertner, 1807 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Sapotaceae (Family)
 Rostellaria Lamarck, 1799 accepted as Tibia Röding, 1798 (junior objective synonym of Tibia) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Littorinimorpha (Order) > Rostellariidae (Family)
 Rostellaria C.G.D. Nees in Wallich, 1832 accepted as Justicia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)

Rostraria
     Rostraria Haecker, 1898 · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Amphinomida (Order) > Amphinomidae (Family)
     Rostraria Trinius, 1820 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Rostrata
     Rostrata Gray, 1855 accepted as Rostrata Gray, 1855 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Rostrata Wagner, 1905 accepted as Rostrata Wagner, 1905 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Rostratiana
     Rostratiana Bourguignat, 1881 accepted as Rostratiana Bourguignat, 1881 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Rostratiana Locard, 1889 accepted as Rostratiana Locard, 1889 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Rostrella
 Rostrella Fabre, 1879 accepted as Ceratocystis J.B. Ellis & Halsted, 1890 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Microascales (Order) > Ceratocystidaceae (Family)
 Rostrella A. Zimmermann, 1900 accepted as Ceratocystis J.B. Ellis & Halsted, 1890 · Fungi (Kingdom) > Ascomycota (Phylum) > Sordariomycetes (Class) > Microascales (Order) > Ceratocystidaceae (Family)

Rostrophrya
     Rostrophrya Njiné, 1979 · Chromista (Kingdom) > Ciliophora (Phylum) > Colpodea (Class) > Colpodida (Order) > Woodruffiidae (Family)
     Rostrophrya Foissner, 1993 accepted as Rostrophrya Foissner, 1993 (unassessed) · Chromista (Kingdom) > Ciliophora (Phylum) > Ciliophora (awaiting allocation) (Class) > Ciliophora (awaiting allocation) (Order) > Ciliophora (awaiting allocation) (Family)

Rota
     Rota Langenheim & Epis, 1957 † · Animalia (Kingdom) > Echinodermata (Phylum) > Holothuroidea (Class) > Apodida (Order) > Apodida (awaiting allocation) (Family)
     Rota Batista, Ciferri & Nascimento, 1959 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)

Rotadiscus
     Rotadiscus Pilsbry, 1926 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Charopidae (Family)
     Rotadiscus Sun & Hou, 1987 † · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Siphonophorae (Order) > Siphonophora (awaiting allocation) (Family)

Rotala
     Rotala Scudder, 1882 accepted as Rotala Scudder, 1882 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Rotala Linnaeus, 1771 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Lythraceae (Family)

Rotalites
     Rotalites Lamarck, 1801 accepted as Rotalites Lamarck, 1801 · Protozoa (Kingdom) > (Phylum) > Protozoa (awaiting allocation) (Class) > (Order) > (Family)
 Rotalites Lamarck, 1804 accepted as Rotalia Lamarck, 1804 (Opinion of Loeblich & Tappan, 1987) · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Rotaliidae (Family)

Rotantha
 Rotantha J.K. Small, 1933 accepted as Campanula Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Campanulaceae (Family)
 Rotantha J.G. Baker, 1890 accepted as Lawsonia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Lythraceae (Family)

Rotella
     Rotella Blainville, 1827 accepted as Rotella Blainville, 1827 (unassessed) · Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
 Rotella Lamarck, 1822 accepted as Umbonium Link, 1807 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Vetigastropoda (Order) > Trochidae (Family)
     Rotella V.P. Shuysky, 1987 † accepted as Rotella V.P. Shuysky, 1987 † (unassessed) · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Bryopsidales (Order) > Bryopsidales (awaiting allocation) (Family)

Rothella
     Rothella Wilson, 1935 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Metacopida (Order) > Metacopida (awaiting allocation) (Family)
 Rothella Gaillon, 1833 accepted as · Plantae (Kingdom) > Chlorophyta (Phylum) > Ulvophyceae (Class) > Cladophorales (Order) > Cladophoraceae (Family)

Rothia
     Rothia O. Varol & M.H. Girgis, 1994 † · Chromista (Kingdom) > Haptophyta (Phylum) > Coccolithophyceae (Class) > Eiffellithales (Order) > Eiffellithaceae (Family)
     Rothia Georg & Brown, 1967 (Approved Lists, 1980) · Bacteria (Kingdom) > Actinobacteria (Phylum) > Actinobacteria (Class) > Micrococcales (Order) > Micrococcaceae (Family)
     Rothia Westwood, 1877 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Rothia Persoon, 1807 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Rothia Schreber, 1791 accepted as Rothia Schreber, 1791 (nomen rejiciendum) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Rothia Lamarck, 1792 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
     Rothia Olson & Beerbower, 1953 † accepted as Rothia Olson & Beerbower, 1953 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Testudines (Order) > Captorhinidae (Family)
 Rothia Borkhausen, 1792 accepted as Mibora Adanson, 1763 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Rothpletzella
     Rothpletzella A. Wood, 1948 † accepted as Rothpletzella A. Wood, 1948 † (unassessed) · Bacteria (Kingdom) > Cyanobacteria (Phylum) > Cyanophyceae (Class) > Cyanophyceae (awaiting allocation) (Order) > Cyanophyceae (awaiting allocation) (Family)
     Rothpletzella Böhm, 1895 † · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Archaeogastropoda (Order) > Archaeogastropoda (awaiting allocation) (Family)

Rothschildia
     Rothschildia Grote, 1896 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Saturniidae (Family)
     Rothschildia Mocquard, 1905 accepted as Rothschildia Mocquard, 1905 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)
     Rothschildia Perkins in Wilson & Evans, 1899 accepted as Rothschildia Perkins in Wilson & Evans, 1899 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Rottlera
     Rottlera Vahl, 1804 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Gesneriaceae (Family)
 Rottlera W. Roxburgh, 1798 accepted as Mallotus Loureiro, 1790 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Euphorbiaceae (Family)
 Rottlera Willdenow, 1797 accepted as Tetragastris J. Gaertner, 1790 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Burseraceae (Family)

Rotula
     Rotula Schumacher, 1817 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Clypeasteroida (Order) > Rotulidae (Family)
     Rotula Agassiz, 1841 accepted as Rotula Agassiz, 1841 (unassessed) · Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
     Rotula Rafinesque, 1815 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Agaricales incertae sedis (Family)
     Rotula Albers, 1850 accepted as Rotula Albers, 1850 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Rotula Loureiro, 1790 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Boraginales (Order) > Boraginaceae (Family)
 Rotula (J. Müller Arg.) J. Müller Arg., 1890 accepted as Mazosia A. Massalongo, 1854 · Fungi (Kingdom) > Ascomycota (Phylum) > Arthoniomycetes (Class) > Arthoniales (Order) > Roccellaceae (Family)

Rotularia
     Rotularia Mörch, 1872 accepted as Rotularia Mörch, 1872 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Helicarionidae (Family)
     Rotularia Defrance, 1827 † · Animalia (Kingdom) > Annelida (Phylum) > Polychaeta (Class) > Sabellida (Order) > Serpulidae (Family)
 Rotularia (Vainio) A. Zahlbruckner, 1923 accepted as Mazosia A. Massalongo, 1854 · Fungi (Kingdom) > Ascomycota (Phylum) > Arthoniomycetes (Class) > Arthoniales (Order) > Roccellaceae (Family)
 Rotularia Sternberg, 1821 † accepted as Sphenophyllum A.T. Brongniart, 1828 † (nomen rejiciendum) · Plantae (Kingdom) > Tracheophyta (Phylum) > Polypodiopsida (Class) > Sphenophyllales (Order) > Sphenophyllaceae (Family)

Rotundatiana
 Rotundatiana Caziot, 1910 accepted as Rotundatiana Caziot, 1910 (Misspelling) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Rotundatiana Caziot, 1908 accepted as Rotundatiana Caziot, 1908 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Rotundina
     Rotundina V.S. Maljavkina, 1949 † accepted as Rotundina V.S. Maljavkina, 1949 † (unassessed) · Plantae (Kingdom) > Sporae dispersae (Phylum) > (Class) > (Order) > (Family)
 Rotundina Subbotina, 1953 † accepted as Praeglobotruncana Bermúdez, 1952 † (Opinion of Loeblich & Tappan, 1987) · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Hedbergellidae (Family)

Rotundomys
     Rotundomys Mein, 1966 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Muridae (Family)
     Rotundomys Mein, 1965 † accepted as Rotundomys Mein, 1965 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Rodentia (Order) > Rodentia (awaiting allocation) (Family)

Rotundopteryx
     Rotundopteryx Duckhouse, 1990 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Psychodidae (Family)
     Rotundopteryx Maisch & Matzke, 2000 † accepted as Rotundopteryx Maisch & Matzke, 2000 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Ichthyosauria (Order) > Ichthyosauria (awaiting allocation) (Family)

Rotundovaldivia
     Rotundovaldivia Pretzmann, 1968 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Trichodactylidae (Family)
     Rotundovaldivia Pretzmann, 1983 accepted as Rotundovaldivia Pretzmann, 1983 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Malacostraca (awaiting allocation) (Order) > Malacostraca (awaiting allocation) (Family)

Rotundula
     Rotundula Goodrich, 1949 · Chromista (Kingdom) > Miozoa (Phylum) > Gregarinomorphea (Class) > Arthrogregarida (Order) > Cephaloidophoridae (Family)
 Rotundula Hartlaub, 1917 accepted as Modeeria Forbes, 1848 (synonym) · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Tiarannidae (Family)

Rotylenchus
     Rotylenchus Filipjev, 1934 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Panagrolaimida (Order) > Hoplolaimidae (Family)
     Rotylenchus Filipjev, 1936 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Panagrolaimida (Order) > Hoplolaimidae (Family)

Rougeotiana
     Rougeotiana Laporte, 1974 accepted as Rougeotiana Laporte, 1974 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Rougeotiana Herbulot, 1983 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Rouleina
     Rouleina Jordan, 1923 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Osmeriformes (Order) > Alepocephalidae (Family)
 Rouleina Fowler, 1925 accepted as Eurypharynx Vaillant, 1882 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Saccopharyngiformes (Order) > Eurypharyngidae (Family)

Roulinia
     Roulinia A.T. Brongniart, 1840 accepted as Roulinia A.T. Brongniart, 1840 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Liliales (Order) > Liliaceae (Family)
 Roulinia Decaisne in Alph. de Candolle, 1844 accepted as Cynanchum Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Apocynaceae (Family)

Roumegueria
     Roumegueria (P.A. Saccardo) P.C. Hennings, 1908 · Fungi (Kingdom) > Ascomycota (Phylum) > Dothideomycetes (Class) > Dothideomycetes incertae sedis (Order) > Dothideomycetes incertae sedis (Family)
 Roumegueria P.A. Karsten, 1879 accepted as Roumegueria P.A. Karsten, 1879 (Misspelling) · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Agaricales (Order) > Strophariaceae (Family)

Rousselia
     Rousselia Douvillé, 1898 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Hippuritida (Order) > Hippuritida (awaiting allocation) (Family)
     Rousselia Gaudichaud-Beaupré in Freycinet, 1830 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Rosales (Order) > Urticaceae (Family)

Rouxia
     Rouxia J. Brun & Héribaud in Héribaud, 1893 † accepted as Rouxia J. Brun & Héribaud in Héribaud, 1893 † · Chromista (Kingdom) > Ochrophyta (Phylum) > Bacillariophyceae (Class) > Bacillariophyceae (awaiting allocation) (Order) > Bacillariophyceae (awaiting allocation) (Family)
 Rouxia Husnot, 1899 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Rowellia
     Rowellia Carbonell, 2002 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Romaleidae (Family)
 Rowellia Carpenter, 1864 accepted as Trimusculus F. C. Schmidt, 1818 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Eupulmonata incertae sedis (Order) > Trimusculidae (Family)

Rowleyella
     Rowleyella Lewis, 1971 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Siphonaptera (Order) > Ceratophyllidae (Family)
     Rowleyella Weller, 1911 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Spiriferida (Order) > Meristidae (Family)

Roxana
     Roxana Gemminger & Harold, 1873 accepted as Roxana Gemminger & Harold, 1873 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Coleoptera (awaiting allocation) (Family)
     Roxana Stephens, 1834 accepted as Roxana Stephens, 1834 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
 Roxana Paetel, 1875 accepted as Roxana Paetel, 1875 (Misspelling) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Roxania
     Roxania Gray, 1847 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Cephalaspidea (Order) > Cylichnidae (Family)
     Roxania Leach, 1847 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Cephalaspidea (Order) > Scaphandridae (Family)

Roxasella
     Roxasella Merino, 1936 accepted as Roxasella Merino, 1936 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Roxasella Fowler, 1943 accepted as Matsubaraea Taki, 1953 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Percophidae (Family)

Roxellaria
 Roxellaria Menke, 1830 accepted as Roxellaria Menke, 1830 (Misspelling) · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Myoida (Order) > Gastrochaenidae (Family)
 Roxellaria Agassiz, 1845 accepted as Rupellaria Fleuriau de Bellevue, 1802 · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Veneridae (Family)

Roya
     Roya W. West & G.S. West, 1896 · Plantae (Kingdom) > Charophyta (Phylum) > Conjugatophyceae (Class) > Zygnematales (Order) > Mesotaeniaceae (Family)
 Roya Iredale, 1912 accepted as Williamia Monterosato, 1884 (synonym) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Basommatophora incertae sedis (Order) > Siphonariidae (Family)

Royella
     Royella Iredale, 1912 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Sorbeoconcha (Order) > Cerithiidae (Family)
 Royella R.S. Dwivedi, 1960 accepted as Dichotomomyces Saito ex D.B. Scott, 1970 · Fungi (Kingdom) > Ascomycota (Phylum) > Eurotiomycetes (Class) > Eurotiales (Order) > Trichocomaceae (Family)

Roylea
     Roylea Wallich ex Bentham, 1829 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Lamiaceae (Family)
 Roylea C.G.D. Nees von Esenbeck ex E.G. von Steudel, 1841 accepted as Melanocenchris C.G.D. Nees, 1841 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Rozanoviella
 Rozanoviella Missarzhevsky, 1981 † accepted as Purella Missarzhevsky, 1974 † (invalid: junior homonym of Rozanoviella Subba Rao, 1974 [Hymenoptera]) · Animalia (Kingdom) > Mollusca (Phylum) > Monoplacophora (Class) > (Order) > Maikhanellidae (Family)
 Rozanoviella Subba Rao, 1974 accepted as Signiphora Ashmead, 1880 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Signiphoridae (Family)

Ruandella
     Ruandella Risbec, 1957 accepted as Ruandella Risbec, 1957 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Encyrtidae (Family)
 Ruandella Roewer, 1956 accepted as Odontobunus Roewer, 1910 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Phalangiidae (Family)

Rubeola
 Rubeola J. Hill, 1756 accepted as Sherardia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
 Rubeola P. Miller, 1754 accepted as Crucianella Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)

Rubeta
     Rubeta Scudder, 1882 accepted as Rubeta Scudder, 1882 · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Rubeta Fatio, 1872 accepted as Rubeta Fatio, 1872 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Amphibia (Class) > Amphibia (awaiting allocation) (Order) > Amphibia (awaiting allocation) (Family)

Rubicola
     Rubicola Blyth, 1842 accepted as Rubicola Blyth, 1842 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Galliformes (Order) > Phasianidae (Family)
 Rubicola Jameson in Wilson, 1831 accepted as Rubicola Jameson in Wilson, 1831 (Misspelling) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Charadriiformes (Order) > Scolopacidae (Family)

Rubidgea
     Rubidgea Broom, 1938 † accepted as Rubidgea Broom, 1938 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Reptilia (Class) > Therapsida (Order) > Gorgonopsidae (Family)
     Rubidgea Tate, 1867 † accepted as Rubidgea Tate, 1867 † (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Gymnospermae (awaiting allocation) (Class) > Gymnospermae (awaiting allocation) (Order) > Gymnospermae (awaiting allocation) (Family)

Rubricapilla
     Rubricapilla Blyth, 1845 accepted as Rubricapilla Blyth, 1845 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Rubricapilla S.D.W., 1835 accepted as Rubricapilla S.D.W., 1835 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Rudbeckia
     Rudbeckia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Asteraceae (Family)
 Rudbeckia Adanson, 1763 accepted as Conocarpus Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Myrtales (Order) > Combretaceae (Family)

Rudebeckia
     Rudebeckia Tjeder & Hansson, 1992 accepted as Rudebeckia Tjeder & Hansson, 1992 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Neuroptera (Order) > Ascalaphidae (Family)
     Rudebeckia Princis in Hanström, Brinck & Rudebeck, 1963 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Blattodea (Order) > Blattellidae (Family)

Rudia
     Rudia Stål, 1866 accepted as Rudia Stål, 1866 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Tropiduchidae (Family)
     Rudia A. Costa in O. Costa, 1856 accepted as Rudia A. Costa in O. Costa, 1856 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Tropiduchidae (Family)

Rudirhynchia
     Rudirhynchia Buckman, 1917 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Rhynchonellidae (Family)
     Rudirhynchia Buckman, 1914 † accepted as Rudirhynchia Buckman, 1917 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Rhynchonellidae (Family)

Rudolfia
     Rudolfia Rohácek, 1983 accepted as Rudolfia Rohácek, 1983 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sphaeroceridae (Family)
 Rudolfia Rohácek, 1982 accepted as Rudolfina Rohácek, 1987 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Sphaeroceridae (Family)
 Rudolfia Wilson C.B., 1924 accepted as Lucicutia Giesbrecht, 1898 (synonym) · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Calanoida (Order) > Lucicutiidae (Family)

Rudolphia
 Rudolphia Willdenow, 1801 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Rudolphia Gray, 1847 accepted as Rudolphia Gray, 1847 (Misspelling) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Neogastropoda (Order) > Muricidae (Family)
     Rudolphia Medikus, 1787 accepted as Rudolphia Medikus, 1787 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Malpighiaceae (Family)
     Rudolphia Grosso & Peralta, 2009 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Amphipoda (Order) > Paraleptamphopidae (Family)
 Rudolphia Jacoby, 1898 accepted as Galerudolphia Hincks, 1949 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)
 Rudolphia Sarwar, 1959 accepted as Trichuris Röderer, 1761 · Animalia (Kingdom) > Nematoda (Phylum) > Dorylaimea (Class) > Trichocephalida (Order) > Trichuridae (Family)
 Rudolphia Dalla Torre & Strand, 1925 accepted as Rodolphia Le Cerf, 1911 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Sesiidae (Family)

Rudolphiella
     Rudolphiella Fuhrmann, 1916 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Cestoda (Class) > Proteocephalidea (Order) > Proteocephalidae (Family)
     Rudolphiella Travassos, 1924 accepted as Rudolphiella Travassos, 1924 (unassessed) · Animalia (Kingdom) > Platyhelminthes (Phylum) > Trematoda (Class) > Trematoda (awaiting allocation) (Order) > Trematoda (awaiting allocation) (Family)

Ruegenella
     Ruegenella Owen, 1977 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Terebrataliidae (Family)
     Ruegenella Frenzel, 2000 † · Chromista (Kingdom) > Retaria (Phylum) > Foraminifera incertae sedis (Class) > Foraminifera (awaiting allocation) (Order) > Foraminifera (awaiting allocation) (Family)

Ruellia
     Ruellia Cossmann, 1913 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Venerida (Order) > Veneroida (awaiting allocation) (Family)
     Ruellia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)

Rueppellia
 Rueppellia Kertész, 1909 accepted as Ruppellia Wiedemann, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Therevidae (Family)
 Rueppellia H. Milne Edwards, 1834 accepted as Lydia Gistel, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Eriphiidae (Family)
 Rueppellia A. Rich. accepted as Aeschynomene Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Rueppellia Weber & Beaufort, 1911 accepted as Paragobiodon Bleeker, 1873 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Gobiidae (Family)

Rugasphaera
     Rugasphaera Jiabo, 1978 † · Protozoa (Kingdom) > Acritarcha (Phylum) > Acritarcha (awaiting allocation) (Class) > Acritarcha (awaiting allocation) (Order) > Acritarcha (awaiting allocation) (Family)
 Rugasphaera Martin in Martin & Dean, 1988 † accepted as Corrugasphaera R.A. Fensome, G.L. Williams, M.S. Barss, J.M. Freeman & J.M. Hill, 1990 † · Protozoa (Kingdom) > Acritarcha (Phylum) > Acritarcha (awaiting allocation) (Class) > Acritarcha (awaiting allocation) (Order) > Acritarcha (awaiting allocation) (Family)

Ruggieria
     Ruggieria Ciferri & Montemartini, 1958 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
     Ruggieria Keij, 1957 · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Trachyleberididae (Family)

Rugilus
     Rugilus Curtis, 1827 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)
     Rugilus Leach, 1819 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Rugithyris
     Rugithyris Buckman, 1918 · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Terebratulidae (Family)
     Rugithyris Buckman, 1915 † accepted as Rugithyris Buckman, 1918 · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Terebratulidae (Family)

Ruizara
     Ruizara J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
 Ruizara J.M.H. Shaw, 2004 accepted as Ruizara J.M.H. Shaw, 2005 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Ruizia
     Ruizia Cavanilles, 1786 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malvales (Order) > Malvaceae (Family)
 Ruizia Pavón in Ruiz & Pavón, 1794 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Laurales (Order) > Monimiaceae (Family)
 Ruizia Travassos & Kloss, 1959 accepted as Rhigonema Cobb, 1898 · Animalia (Kingdom) > Nematoda (Phylum) > Chromadorea (Class) > Spirurida (Order) > Rhigonematidae (Family)

Ruiziella
     Ruiziella Timberlake, 1952 accepted as Ruiziella Timberlake, 1952 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)
     Ruiziella Cortés, 1951 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)

Rukhinia
     Rukhinia M.A. Plotnikov, 1975 † accepted as Rukhinia M.A. Plotnikov, 1975 † (unassessed) · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlorophyceae (awaiting allocation) (Order) > Microcodiaceae (Family)
     Rukhinia Strelnikov, 1963 † · Animalia (Kingdom) > Cnidaria (Phylum) > Anthozoa (Class) > Stauriida (Order) > Lykophyllidae (Family)

Rumea
     Rumea Desutter, 1988 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Paragryllidae (Family)
 Rumea Poiteau, 1814 accepted as Xylosma J.G.A. Forster, 1786 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Salicaceae (Family)

Rumia
     Rumia Duponchel in Godart, 1829 accepted as Rumia Duponchel in Godart, 1829 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Lepidoptera (awaiting allocation) (Family)
     Rumia G.F. Hoffmann, 1816 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)
 Rumia Gregorio, 1930 † accepted as Ramia Gregorio, 1930 † · Animalia (Kingdom) > Bryozoa (Phylum) > Stenolaemata (Class) > Cyclostomatida (Order) > Cyclostomatida (awaiting allocation) (Family)

Rumina
     Rumina Risso, 1826 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Stylommatophora (Order) > Subulinidae (Family)
     Rumina Dejean, 1835 accepted as Rumina Dejean, 1835 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Chrysomelidae (Family)

Rumphia
     Rumphia Desor, 1857 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Clypeasteroida (Order) > Laganidae (Family)
 Rumphia Pagenstecher, 1909 accepted as Ramphia Guenée, 1852 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)
     Rumphia Linnaeus, 1753 accepted as Rumphia Linnaeus, 1753 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Magnoliopsida incertae sedis (Order) > Magnoliopsida incertae sedis (Family)

Rumrillara
 Rumrillara L.A. Garay, 1972 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)
     Rumrillara Hort., 1969 accepted as Rumrillara Hort., 1969 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asparagales (Order) > Orchidaceae (Family)

Runcina
     Runcina Forbes in Forbes & Hanley, 1851 · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Cephalaspidea (Order) > Runcinidae (Family)
     Runcina F. Allamand, 1770 accepted as Runcina F. Allamand, 1770 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Poales (Order) > Poaceae (Family)

Rupa
     Rupa Jedlicka, 1935 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Carabidae (Family)
     Rupa Jonathan, 1971 † accepted as Rupa Jonathan, 1971 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Hymenoptera (awaiting allocation) (Family)

Rupertia
     Rupertia Gray, 1865 accepted as Rupertia Gray, 1865 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)
     Rupertia J.W. Grimes, 1990 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Rupertia Wallich, 1877 accepted as Rupertina Loeblich & Tappan, 1961 (Junior homonym of Rupertia Gray, 1865) · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Homotrematidae (Family)

Rupicapra
     Rupicapra Blainville, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)
 Rupicapra Frisch, 1775 accepted as Rupicapra Blainville, 1816 · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)

Rupicola
     Rupicola Brisson, 1760 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Tyrannidae (Family)
     Rupicola Bogdanov, 1881 accepted as Rupicola Bogdanov, 1881 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Rupicola Hartmann, 1844 accepted as Rupicola Hartmann, 1844 (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Gastropoda (awaiting allocation) (Order) > Gastropoda (awaiting allocation) (Family)
     Rupicola Maiden & Betche, 1899 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Ericales (Order) > Ericaceae (Family)
 Rupicola Fleuriau de Bellevue, 1802 accepted as Thracia Blainville, 1824 (preoccupied by Rupicola Brisson, 1760 (Aves)) · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Anomalodesmata (Order) > Thraciidae (Family)

Rupinia
 Rupinia Spegazzini & Roumeguère, 1879 accepted as Heydenia Fresenius, 1852 · Fungi (Kingdom) > Ascomycota (Phylum) > Ascomycota incertae sedis (Class) > Ascomycota incertae sedis (Order) > Ascomycota incertae sedis (Family)
 Rupinia Linnaeus f., 1782 accepted as Plagiochasma J.G.C. Lehmann & Lindenberg in J.G.C. Lehmann, 1832 · Plantae (Kingdom) > Marchantiophyta (Phylum) > Marchantiopsida (Class) > Marchantiales (Order) > Aytoniaceae (Family)
 Rupinia Corda, 1829 accepted as Plagiochasma J.G.C. Lehmann & Lindenberg in J.G.C. Lehmann, 1832 · Plantae (Kingdom) > Marchantiophyta (Phylum) > Marchantiopsida (Class) > Marchantiales (Order) > Aytoniaceae (Family)

Ruppelia
 Ruppelia Castelnau, 1873 accepted as Paraplesiops Bleeker, 1875 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Plesiopidae (Family)
 Ruppelia Swainson, 1839 accepted as Paragobiodon Bleeker, 1873 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Gobiidae (Family)

Ruppellia
     Ruppellia Wiedemann, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Therevidae (Family)
 Ruppellia Castelnau, 1873 accepted as Paraplesiops Bleeker, 1875 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Plesiopidae (Family)
 Ruppellia H. Milne Edwards, 1834 accepted as Rueppellia H. Milne Edwards, 1834 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Eriphiidae (Family)
 Ruppellia Swainson, 1839 accepted as Paragobiodon Bleeker, 1873 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Gobiidae (Family)

Rüppellia
 Rüppellia H. Milne Edwards, 1834 accepted as Lydia Gistel, 1848 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Eriphiidae (Family)
 Rüppellia Weber & Beaufort, 1911 accepted as Paragobiodon Bleeker, 1873 · Animalia (Kingdom) > Chordata (Phylum) > Actinopterygii (Class) > Perciformes (Order) > Gobiidae (Family)

Ruprechtiella
 Ruprechtiella Yendo, 1913 accepted as · Chromista (Kingdom) > Ochrophyta (Phylum) > Phaeophyceae (Class) > Chordariales (Order) > Chordariaceae (Family)
 Ruprechtiella Kylin, 1924 accepted as Yendonia Kylin, 1935 (synonym) · Plantae (Kingdom) > Rhodophyta (Phylum) > Florideophyceae (Class) > Ceramiales (Order) > Delesseriaceae (Family)

Rusalka
     Rusalka T. Nakada in T. Nakada, H. Nozaki & T. Pröschold, 2008 · Plantae (Kingdom) > Chlorophyta (Phylum) > Chlorophyceae (Class) > Chlamydomonadales (Order) > Haematococcaceae (Family)
 Rusalka Uljanin, 1870 accepted as Pseudostomum Schmidt, 1848 · Animalia (Kingdom) > Platyhelminthes (Phylum) > Turbellaria (Class) > Prolecithophora (Order) > Pseudostomidae (Family)

Ruschia
     Ruschia Mello-Leitão, 1940 · Animalia (Kingdom) > Arthropoda (Phylum) > Arachnida (Class) > Opiliones (Order) > Gonyleptidae (Family)
     Ruschia Schwantes, 1926 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Caryophyllales (Order) > Aizoaceae (Family)

Ruspolia
     Ruspolia Schulthess-Schindler, 1898 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Orthoptera (Order) > Tettigoniidae (Family)
     Ruspolia Lindau in Engler & Prantl, 1895 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Acanthaceae (Family)

Ruspoliella
     Ruspoliella Poppius, 1921 accepted as Ruspoliella Poppius, 1921 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Ruspoliella M. Cengia, 1937 accepted as Ruspoliella M. Cengia, 1937 (unassessed) · Fungi (Kingdom) > Fungi (awaiting allocation) (Phylum) > Fungi (awaiting allocation) (Class) > Fungi (awaiting allocation) (Order) > Fungi (awaiting allocation) (Family)
 Ruspoliella Sambo, 1937 accepted as Solorina Acharius, 1808 · Fungi (Kingdom) > Ascomycota (Phylum) > Lecanoromycetes (Class) > Peltigerales (Order) > Peltigeraceae (Family)

Russelia
     Russelia N.J. Jacquin, 1760 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Lamiales (Order) > Plantaginaceae (Family)
 Russelia Linnaeus f., 1782 accepted as · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Saxifragales (Order) > Saxifragaceae (Family)

Russellia
     Russellia J.B. Risatti, 1973 † · Chromista (Kingdom) > Haptophyta (Phylum) > Coccolithophyceae (Class) > Coccosphaerales (Order) > Calyptrosphaeraceae (Family)
     Russellia Vargas, 1943 accepted as Russellia Vargas, 1943 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Culicidae (Family)
     Russellia Muesebeck, 1950 accepted as Russellia Muesebeck, 1950 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hymenoptera (Order) > Braconidae (Family)
 Russellia Kramp, 1957 accepted as Heterotentacula Schuchert, 2010 (junior homonym of Russellia Vargas, 1943 [Insecta: Diptera] and Russellia Muesebeck, 1950 [Insecta: Hymenoptera]) · Animalia (Kingdom) > Cnidaria (Phylum) > Hydrozoa (Class) > Anthoathecata (Order) > Russelliidae (Family)
     Russellia Singh & Hanumaiah, 1979 accepted as Russellia Singh & Hanumaiah, 1979 (unassessed) · Protozoa (Kingdom) > (Phylum) > (Class) > Sarcomastigota (awaiting allocation) (Order) > Sarcomastigota (awaiting allocation) (Family)

Russellites
     Russellites Van Valen, 1965 † accepted as Russellites Van Valen, 1965 † (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Cimolesta (Order) > Paroxyclaenidae (Family)
 Russellites S.H. Mamay, 1968 † accepted as Yuania H.C. Sze, 1953 † · Plantae (Kingdom) > Tracheophyta (Phylum) > Progymnospermopsida (Class) > Discinitales (Order) > Discinitaceae (Family)

Russiella
     Russiella Makridin, 1964 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Terebratulida (Order) > Terebratulina incertae sedis (Family)
     Russiella Miklukho-Maklay, 1957 † · Chromista (Kingdom) > Retaria (Phylum) > Tubothalamea (Class) > Fusulinida (Order) > Schubertellidae (Family)

Russirhynchia
     Russirhynchia Buckman, 1917 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Rhynchonellidae (Family)
     Russirhynchia Buckman, 1914 † accepted as Russirhynchia Buckman, 1917 † · Animalia (Kingdom) > Brachiopoda (Phylum) > Rhynchonellata (Class) > Rhynchonellida (Order) > Rhynchonellidae (Family)

Rustia
     Rustia Stål, 1866 accepted as Rustia Stål, 1866 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
     Rustia Klotzsch in Hayne, 1846 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Gentianales (Order) > Rubiaceae (Family)
     Rustia Vinassa de Regny, 1898 † · Chromista (Kingdom) > Retaria (Phylum) > Polycystinea (Class) > Spumellaria (Order) > Spumellaria (awaiting allocation) (Family)

Rusticola
     Rusticola Vieillot, 1816 accepted as Rusticola Vieillot, 1816 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Charadriiformes (Order) > Scolopacidae (Family)
 Rusticola Houttuyn in Nozeman, 1770 accepted as Limosa Brisson, 1760 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Charadriiformes (Order) > Scolopacidae (Family)

Rusticula
 Rusticula Vieillot, 1818 accepted as Rusticula Vieillot, 1818 (Misspelling) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Charadriiformes (Order) > Scolopacidae (Family)
 Rusticula Möhring, 1758 accepted as Rusticula Möhring, 1758 (Published in a rejected work (ICZN)) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)

Ruteria
     Ruteria Roudier, 1954 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Curculionidae (Family)
     Ruteria Medikus, 1787 accepted as Ruteria Medikus, 1787 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Fabales (Order) > Fabaceae (Family)
 Ruteria Jarrige, 1957 accepted as Coenonica Kraatz, 1857 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Staphylinidae (Family)

Ruthea
 Ruthea Opatowski, 1836 accepted as Paxillus E.M. Fries, 1836 · Fungi (Kingdom) > Basidiomycota (Phylum) > Agaricomycetes (Class) > Boletales (Order) > Paxillaceae (Family)
 Ruthea Bolle, 1862 accepted as Rutheopsis A. Hansen & G. Kunkel, 1976 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Apiales (Order) > Apiaceae (Family)

Rutherfordia
     Rutherfordia Macgillivray, 1921 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Diaspididae (Family)
 Rutherfordia McCulloch, 1977 accepted as Rutherfordoides McCulloch, 1981 (Junior homonym) · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Bolivinitidae (Family)

Ruthiella
     Ruthiella Steenis, 1965 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Asterales (Order) > Campanulaceae (Family)
     Ruthiella Schödel, 1983 · Chromista (Kingdom) > Ciliophora (Phylum) > Oligohymenophorea (Class) > Peritrichida (Order) > Vorticellidae (Family)

Ruticilla
     Ruticilla Brehm, 1828 accepted as Ruticilla Brehm, 1828 · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Turdidae (Family)
     Ruticilla Brehm, 1831 accepted as Ruticilla Brehm, 1831 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Turdidae (Family)
     Ruticilla Bartram, 1791 accepted as Ruticilla Bartram, 1791 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Passeriformes (Order) > Parulidae (Family)

Rutilia
     Rutilia Robineau-Desvoidy, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Tachinidae (Family)
     Rutilia Vellozo, 1829 accepted as Rutilia Vellozo, 1829 (unassessed) · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Sapindales (Order) > Sapindaceae (Family)

Rutitherium
     Rutitherium Filhol, 1877 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)
     Rutitherium Filhol, 1876 † accepted as Rutitherium Filhol, 1877 † · Animalia (Kingdom) > Chordata (Phylum) > Mammalia (Class) > Artiodactyla (Order) > Bovidae (Family)

Rutonia
     Rutonia Yang, Nie & Wu in Yang, Nie, Wu & Liang, 1986 † accepted as Rutonia Yang, Nie & Wu in Yang, Nie, Wu & Liang, 1986 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Bivalvia (awaiting allocation) (Order) > Bivalvia (awaiting allocation) (Family)
     Rutonia Yang, Nie, Wu & Liang, 1982 † · Animalia (Kingdom) > Mollusca (Phylum) > Bivalvia (Class) > Hippuritida (Order) > Requieniidae (Family)

Rutroclypeus
     Rutroclypeus Caster & Gill, 1960 † · Animalia (Kingdom) > Echinodermata (Phylum) > Homoiostelea (Class) > Soluta (Order) > Rutroclypeidae (Family)
     Rutroclypeus Withers, 1933 † accepted as Rutroclypeus Withers, 1933 † (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Merostomata (Class) > Xiphosura (Order) > Xiphosura (awaiting allocation) (Family)

Ruttenella
     Ruttenella Bold, 1946 † · Animalia (Kingdom) > Arthropoda (Phylum) > Ostracoda (Class) > Podocopida (Order) > Podocopida (awaiting allocation) (Family)
 Ruttenella Keyzer, 1953 † accepted as Bueningia Finlay, 1939 (Opinion of Loeblich & Tappan, 1987) · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Bueningiidae (Family)

Ruttenia
     Ruttenia Rodhain, 1924 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Diptera (Order) > Oestridae (Family)
 Ruttenia Pijpers, 1933 † accepted as Pijpersia Thalmann, 1954 † (Junior homonym of Ruttenia Rodhain, 1924) · Chromista (Kingdom) > Retaria (Phylum) > Globothalamea (Class) > Rotaliida (Order) > Glabratellidae (Family)

Ruvulus
     Ruvulus Cocco, 1832 accepted as Ruvulus Cocco, 1832 · Animalia (Kingdom) > Echinodermata (Phylum) > Echinodermata (awaiting allocation) (Class) > Echinodermata (awaiting allocation) (Order) > Echinodermata (awaiting allocation) (Family)
 Ruvulus De Natale, 1850 accepted as Sicyonia H. Milne Edwards, 1830 · Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Sicyoniidae (Family)

Ruzhencevites
     Ruzhencevites Mikesh, 1968 † accepted as Ruzhencevites Mikesh, 1968 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Cephalopoda (awaiting allocation) (Order) > Cephalopoda (awaiting allocation) (Family)
     Ruzhencevites Moyle, 1963 † accepted as Ruzhencevites Moyle, 1963 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Cephalopoda (Class) > Cephalopoda (awaiting allocation) (Order) > Cephalopoda (awaiting allocation) (Family)

Ryania
     Ryania Mathews, 1912 accepted as Ryania Mathews, 1912 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
     Ryania Vahl, 1796 · Plantae (Kingdom) > Tracheophyta (Phylum) > Magnoliopsida (Class) > Malpighiales (Order) > Salicaceae (Family)

Rybocyclops
     Rybocyclops Dussart, 1982 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Cyclopoida (Order) > Cyclopidae (Family)
     Rybocyclops Reddy & DeFaye, 2008 · Animalia (Kingdom) > Arthropoda (Phylum) > Maxillopoda (Class) > Cyclopoida (Order) > Cyclopidae (Family)

Ryckholtia
     Ryckholtia Snajdr, 1980 † · Animalia (Kingdom) > Arthropoda (Phylum) > Trilobita (Class) > Proetida (Order) > Proetida (awaiting allocation) (Family)
     Ryckholtia Fritsch, 1910 † accepted as Ryckholtia Fritsch, 1910 † (unassessed) · Animalia (Kingdom) > Mollusca (Phylum) > Mollusca (awaiting allocation) (Class) > Mollusca (awaiting allocation) (Order) > Mollusca (awaiting allocation) (Family)

Rynchina
     Rynchina Fleming, 1822 accepted as Rynchina Fleming, 1822 (unassessed) · Animalia (Kingdom) > Chordata (Phylum) > Aves (Class) > Aves (awaiting allocation) (Order) > Aves (awaiting allocation) (Family)
 Rynchina accepted as Rhynchina Guenée, 1854 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Lepidoptera (Order) > Noctuidae (Family)

Ryparocoris
     Ryparocoris Schilling, 1827 accepted as Ryparocoris Schilling, 1827 (unassessed) · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Hemiptera (awaiting allocation) (Family)
 Ryparocoris Schummel, 1827 accepted as Reduvius Fabricius, 1775 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Hemiptera (Order) > Reduviidae (Family)

Ryparus
     Ryparus Dejean, 1833 accepted as Rhyparus Westwood, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
     Ryparus Westwood, 1844 accepted as Rhyparus Westwood, 1845 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Scarabaeidae (Family)
 Ryparus Spinola, 1844 accepted as Prosymnus Laporte, 1836 · Animalia (Kingdom) > Arthropoda (Phylum) > Insecta (Class) > Coleoptera (Order) > Cleridae (Family)