IRMNG

Between brackets is the number of accepted species

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Biota
Kingdom Animalia
Phylum Acanthocephala
Phylum Agmata †
Phylum Animalia (awaiting allocation)
Phylum Animalia incertae sedis
Phylum Annelida
Phylum Arthropoda
Phylum Brachiopoda
Phylum Bryozoa
Phylum Cephalorhyncha incertae sedis
Phylum Chaetognatha
Phylum Chitinozoa †
Phylum Chordata
Subphylum Cephalochordata
Subphylum Tunicata accepted as Urochordata
Subphylum Urochordata
Subphylum Vertebrata
Superclass Tetrapoda
Class Acanthodii †
Class Actinopterygii
Order Acanthomorpha
Order Acipenseriformes
Order Actinopterygii (awaiting allocation)
Order Actinopterygii incertae sedis
Order Aeduelliformes †
Order Albuliformes
Order Alepisauriformes
Order Amiiformes
Order Anguilliformes
Family Anguillavidae Hay, 1903 †
Family Anguillidae Rafinesque, 1810
Family Anguilliformes (awaiting allocation)
Family Anguilloididae †
Family Chlopsidae Rafinesque, 1815
Family Colocongridae Smith, 1976
Family Congridae Kaup, 1856
Family Derichthyidae Gill, 1884
Family Derichtyidae accepted as Derichthyidae Gill, 1884
Family Dysommatidae Steyskal, 1980 accepted as Dysommidae Gill, 1893
Family Dysommidae Gill, 1893 accepted as Synaphobranchidae Johnson, 1862
Family Georgidentidae Sychevskaya & Prokofyev, 2004 †
Family Heterenchelyidae Regan, 1912
Family Libanechelyidae Taverne, 2004 †
Family Macrocephenchelyidae Fowler, 1934 accepted as Congridae Kaup, 1856
Family Milananguillidae †
Family Moringuidae Gill, 1885
Family Muraenesocidae Kaup, 1859
Family Muraenidae Rafinesque, 1815
Family Myrocongridae Gill, 1890
Family Nardoechelyidae Taverne & Capasso, 2014 †
Family Nemichthyidae Kaup, 1859
Family Nettastomatidae Kaup, 1859
Family Ophichthidae Gunther, 1870
Genus Acanthenchelys Norman, 1922 accepted as Ophichthus Ahl, 1789
Genus Achirophichthys Bleeker, 1864 accepted as Brachysomophis Kaup, 1856
Genus Achlia Borodin, 1928 accepted as Ahlia Jordan & Davis, 1891
Genus Ahlia Jordan & Davis, 1891
Genus Allips McCosker, 1972
Genus Anepistomon Gistel, 1848 accepted as Ophisurus Lacepède, 1800
Genus Anguisurus Kaup, 1856 accepted as Lamnostoma Kaup, 1856
Genus Antobrantia Pinto, 1970 accepted as Ophichthus Ahl, 1789
Genus Aotea Phillipps, 1926 accepted as Scolecenchelys Ogilby, 1897
Genus Aplatophis Böhlke, 1956
Genus Aprognathodon Böhlke, 1967
Genus Apterichtes Fleming, 1822 accepted as Apterichtus Duméril, 1805
Genus Apterichthus accepted as Apterichtus Duméril, 1805
Genus Apterichthys Kaup in Duméril, 1856 accepted as Apterichtus Duméril, 1805
Genus Apterichtus Duméril, 1805
Genus Apterichtys Schinz in Cuvier, 1822 accepted as Apterichtus Duméril, 1805
Genus Asanoa Sychevskaya & Prokofyev, 2004 †
Genus Asarcenchelys McCosker, 1985
Genus Auchenichthys Kaup in Duméril, 1856 accepted as Brachysomophis Kaup, 1856
Genus Bascanichthys Jordan & Davis, 1891
Genus Benthenchelys Fowler, 1934
Genus Bertinulus Whitley, 1948
Genus Brachycheirophis Fowler, 1944 accepted as Pisodonophis Kaup, 1856
Genus Brachysomophis Kaup, 1856
Genus Brachysomorphis accepted as Brachysomophis Kaup, 1856
Genus Brachysonophis accepted as Brachysomophis Kaup, 1856
Genus Branderius Rafinesque, 1815 accepted as Apterichtus Duméril, 1805
Genus Caecilia Lacepède, 1800 accepted as Apterichtus Duméril, 1805
Genus Caecilophis Duméril, 1856 accepted as Ophichthus Ahl, 1789
Genus Caecula Vahl, 1794
Genus Calamuraena Whitley, 1944 accepted as Cirrhimuraena Kaup, 1856
Genus Callechelys Kaup, 1856
Genus Caralophia Böhlke, 1955
Genus Cecilia Rafinesque, 1815 [2] accepted as Apterichtus Duméril, 1805
Genus Centrurophis Kaup, 1856 accepted as Ophichthus Ahl, 1789
Genus Chlevastes Jordan & Snyder, 1901 accepted as Myrichthys Girard, 1859
Genus Cirrhimuraena Kaup, 1856
Genus Cirricaecula Schultz in Schultz, Herald, Lachner, Welander & Woods, 1953
Genus Cirrihimuraena
Genus Coecilia Duméril, 1805 accepted as Apterichtus Duméril, 1805
Genus Coecilophis Kaup, 1856 accepted as Ophichthus Ahl, 1789
Genus Coecula Cuvier, 1817 accepted as Caecula Vahl, 1794
Genus Cogrus Rafinesque, 1810 accepted as Ophichthus Ahl, 1789
Genus Colubrina Lacepède, 1803
Genus Colubrinus Duméril, 1805
Genus Crotalopsis Kaup, 1860 accepted as Echiophis Kaup, 1856
Genus Cryptopterenchelys Fowler, 1925 accepted as Ophichthus Ahl, 1789
Genus Cryptopterus Kaup, 1860 accepted as Ophichthus Ahl, 1789
Genus Cryptopterygium Ginsburg, 1951 accepted as Callechelys Kaup, 1856
Genus Cyclophichthys Whitley, 1951 accepted as Elapsopis Kaup, 1856
Genus Dalaphis Rafinesque, 1810 accepted as Dalophis Rafinesque, 1810
Genus Dalophis Rafinesque, 1810
Genus Dendrophis Kaup in Duméril, 1856 accepted as Brachysomophis Kaup, 1856
Genus Echelus Rafinesque, 1810
Genus Echiophis Kaup, 1856
Genus Echiopsis Kaup, 1856 accepted as Echiophis Kaup, 1856
Genus Elapsopis Kaup, 1856 accepted as Leiuranus Bleeker, 1853
Genus Elapsopsis Kaup, 1856 accepted as Elapsopis Kaup, 1856
Genus Enchelys Agassiz, 1846 accepted as Echelus Rafinesque, 1810
Genus Eophichthus Schwarzhans, Stringer & Takeuchi, 2024 †
Genus Ethadophis Rosenblatt & McCosker, 1970
Genus Evipes accepted as Evips McCosker, 1972
Genus Evips McCosker, 1972
Genus Giscenchelys Fowler, 1944 accepted as Ophichthus Ahl, 1789
Genus Glenoglossa McCosker, 1982
Genus Gordiichthys Jordan & Davis, 1891
Genus Hemerorhinus Weber & de Beaufort, 1916
Genus Herpetoichthys Kaup, 1856
Genus Hesperomyrus Myers & Storey, 1939 accepted as Myrophis Lütken, 1852
Genus Holopterura Cope, 1871 accepted as Myrophis Lütken, 1852
Genus Hyphalophis McCosker & Böhlke, 1982
Genus Ichthyapus Brisout de Barneville, 1847
Genus Innominado Parra, 1787 accepted as Ophichthus Ahl, 1789
Genus Ipaimuraena Schwarzhans, Stringer & Takeuchi, 2024 †
Genus Jenkinsella accepted as Jenkinsiella Jordan & Evermann, 1905
Genus Jenkinsiella Jordan & Evermann, 1905 accepted as Cirrhimuraena Kaup, 1856
Genus Kertomichthys McCosker & Böhlke, 1982
Genus Lamnastoma accepted as Lamnostoma Kaup, 1856
Genus Lamnosoma accepted as Lamnostoma Kaup, 1856
Genus Lamnostoma Kaup, 1856
Genus Lamnostomus accepted as Lamnostoma Kaup, 1856
Genus Leiuranus Bleeker, 1853
Genus Leiurus Kaup in Duméril, 1856 accepted as Myrichthys Girard, 1859
Genus Leptenchelys Myers & Wade, 1941
Genus Leptoconcher Carus, 1880 accepted as Myrophis Lütken, 1852
Genus Leptoconger Poey, 1880 accepted as Myrophis Lütken, 1852
Genus Leptognathus Swainson, 1838 accepted as Ophisurus Lacepède, 1800
Genus Leptorhinophis Kaup, 1856 accepted as Ophichthus Ahl, 1789
Genus Leptorhynchus Smith, 1840 accepted as Ophisurus Lacepède, 1800
Genus Letharchus Goode & Bean, 1882
Genus Letharcus Goode & Bean, 1882 accepted as Letharchus Goode & Bean, 1882
Genus Lethogoleos McCosker & Böhlke, 1982
Genus Leuropharus Rosenblatt & McCosker, 1970
Genus Liuranus Günther, 1870 accepted as Leiuranus Bleeker, 1853
Genus Luthulenchelys McCosker, 2007
Genus Machaerenchelys Fowler, 1938 accepted as Leiuranus Bleeker, 1853
Species Machaerenchelys phoenixensis Schultz, 1943 accepted as Leiuranus semicinctus (Lay & Bennett, 1839)
Species Machaerenchelys vanderbilti Fowler, 1938 accepted as Leiuranus semicinctus (Lay & Bennett, 1839)
Genus Macrodonophis Poey, 1868 accepted as Echiophis Kaup, 1856
Genus Malviolophus accepted as Malvoliophis Whitley, 1934
Genus Malvoliophis Whitley, 1934
Genus Microdonophis Kaup, 1856 accepted as Ophichthus Ahl, 1789
Genus Microrhynchus Blache & Bauchot, 1972 accepted as Phaenomonas Myers & Wade, 1941
Genus Mixomyrophis McCosker, 1985
Genus Muaenichthys accepted as Muraenichthys Bleeker, 1853
Genus Muraenichthys Bleeker, 1853
Genus Muraenophis Lacepède, 1803 accepted as Gymnothorax Bloch, 1795
Genus Muraenopsis Lesueur in Kaup, 1856 accepted as Ophichthus Ahl, 1789
Genus Myrichthys Girard, 1859
Genus Myrichttys accepted as Myrichthys Girard, 1859
Genus Myrichtys accepted as Myrichthys Girard, 1859
Genus Myrophis Lütken, 1852
Genus Myroplius accepted as Myrophis Lütken, 1852
Genus Myropterura Ogilby, 1897 accepted as Scolecenchelys Ogilby, 1897
Genus Myrus Kaup, 1856 accepted as Echelus Rafinesque, 1810
Genus Mystriophis Kaup, 1856
Genus Neenchelys Bamber, 1915
Genus Notophtophis Castro-Aguirre & Suárez de los Cobos, 1983 accepted as Echiophis Kaup, 1856
Genus Omochelys Fowler, 1918 accepted as Ophichthus Ahl, 1789
Genus Ophichtchys accepted as Ophichthus Ahl, 1789
Genus Ophichthus Ahl, 1789
Genus Ophichthys Swainson, 1839 accepted as Monopterus Lacepède, 1800
Genus Ophichtus
Genus Ophichtys accepted as Ophichthus Ahl, 1789
Genus Ophicthus accepted as Ophichthus Ahl, 1789
Genus Ophicthys Swainson, 1839
Genus Ophictus
Genus Ophis Turton, 1807 accepted as Ophichthus Ahl, 1789
Genus Ophisuraphis Kaup, 1856 accepted as Apterichtus Duméril, 1805
Genus Ophisurapus Kaup, 1856 accepted as Apterichtus Duméril, 1805
Genus Ophisurophis Bleeker, 1864 accepted as Apterichtus Duméril, 1805
Genus Ophisurus Lacepède, 1800
Genus Ophithorax McClelland, 1844 accepted as Ophichthus Ahl, 1789
Genus Ophiurus Agassiz, 1846 accepted as Ophisurus Lacepède, 1800
Genus Ophychthus accepted as Ophichthus Ahl, 1789
Genus Opichthus accepted as Ophichthus Ahl, 1789
Genus Oxyodontichthys Poey, 1880 accepted as Ophichthus Ahl, 1789
Genus Oxystomus Rafinesque, 1810
Genus Pantonora Smith, 1965 accepted as Yirrkala Whitley, 1940
Genus Paraletharchus McCosker, 1974
Genus Paramyrus Günther, 1870 accepted as Ophichthus Ahl, 1789
Genus Pelia Schlegel in Bleeker, 1863 accepted as Dalophis Rafinesque, 1810
Genus Phaenomonas Myers & Wade, 1941
Genus Phyllophichthus Gosline, 1951
Genus Pisodonophis Kaup, 1856
Genus Pisodonphis accepted as Pisodonophis Kaup, 1856
Genus Pisodontophis Günther, 1870 accepted as Pisodonophis Kaup, 1856
Genus Pisoodonophis Kaup, 1860 accepted as Pisodonophis Kaup, 1856
Genus Pisoodontus Popta, 1904 accepted as Pisodonophis Kaup, 1856
Genus Poecilocephalus Kaup, 1856 accepted as Ophichthus Ahl, 1789
Genus Pogonophis Myers & Wade, 1941 accepted as Herpetoichthys Kaup, 1856
Genus Pseudomyrophis Wade, 1946
Genus Pterurus Rafinesque, 1810 accepted as Dalophis Rafinesque, 1810
Genus Pylorobranchus McCosker & Chen, 2012
Genus Quassiremus Jordan & Davis, 1891
Genus Rhinenchelys Blache & Bauchot, 1972 accepted as Ichthyapus Brisout de Barneville, 1847
Genus Rhinophichthus McCosker, 1999
Genus Schismorhynchus McCosker, 1970
Genus Schizmorhynchus accepted as Schismorhynchus McCosker, 1970
Genus Schultzidia Gosline, 1951
Genus Scolecenchelys Ogilby, 1897
Genus Scolenchelys Ogilby, 1897 accepted as Scolecenchelys Ogilby, 1897
Genus Scytalichthys Jordan & Davis, 1891
Genus Scytallurus Duméril, 1856 accepted as Dalophis Rafinesque, 1810
Genus Scytalophis Kaup, 1856 accepted as Ophichthus Ahl, 1789
Genus Skythrenchelys Castle & McCosker, 1999
Genus Sphagebranchus Bloch, 1795 accepted as Caecula Vahl, 1794
Genus Stethopterus Bleeker, 1853 accepted as Leiuranus Bleeker, 1853
Genus Stictorhinus Böhlke & McCosker, 1975
Genus Suculentophichthus Fricke, 2015
Genus Syletophis Whitley, 1950 accepted as Ophichthus Ahl, 1789
Genus Syletor Jordan, 1919 accepted as Ophichthus Ahl, 1789
Genus Typhlotes Fischer, 1813 accepted as Apterichtus Duméril, 1805
Genus Uranichthys Poey, 1867 accepted as Ophichthus Ahl, 1789
Genus Verma Jordan & Evermann, 1896 accepted as Apterichtus Duméril, 1805
Genus Xestochilus McCosker, 1998
Genus Xyrias Jordan & Snyder, 1901
Genus Yirrkala Whitley, 1940
Genus Zonophichthus Whitley, 1930 accepted as Ophichthus Ahl, 1789
Family Ophichthyidae accepted as Ophichthidae Gunther, 1870
Family Paranguillidae †
Family Parechelidae †
Family Patavichthyidae †
Family Phyllodontidae Sauvage, 1875 †
Family Protanguillidae Johnson, Ida & Miya in Johnson, Ida, Sakaue, Sado, Asahida & Miya, 2011
Family Proteomyridae †
Family Protoanguillidae Johnson, Ida & Miya, 2011 accepted as Protanguillidae Johnson, Ida & Miya in Johnson, Ida, Sakaue, Sado, Asahida & Miya, 2011
Family Serrivomeridae Trewavas, 1932
Family Simenchelyidae Gill in Goode & Bean, 1879 accepted as Synaphobranchidae Johnson, 1862
Family Synaphobranchidae Johnson, 1862
Family Urenchelyidae †
Family Xenocongridae Regan, 1912 accepted as Chlopsidae Rafinesque, 1815
Genus Abisaadia Belouze, Gayet & Atallah, 2003 †
Genus Muraenanguilla Schwarzhans, 2019 †
Order Ankylophoriformes †
Order Argentiniformes
Order Asarotiformes †
Order Ascalaboidiformes †
Order Aspidorhynchiformes †
Order Ateleopodiformes
Order Atheriniformes
Order Aulopiformes
Order Batrachoidiformes
Order Beloniformes
Order Beryciformes
Order Bobasatraniformes † accepted as Bobasatraniiformes †
Order Bobasatraniiformes †
Order Catervarioliformes †
Order Cephaloxeniformes †
Order Cetomimiformes
Order Characiformes
Order Cheirolepiformes †
Order Clupeiformes
Order Clupeocephala incertae sedis
Order Clupeomorpha incertae sedis
Order Crossognathiformes †
Order Ctenothrissiformes †
Order Cypriniformes
Order Cyprinodontiformes
Order Dactylopteriformes accepted as Syngnathiformes
Order Dapediiformes †
Order Discordichthyiformes †
Order Dorsetichthyiformes †
Order Dorypteriformes †
Order Ellimmichthyiformes †
Order Elonichthyiformes †
Order Elopiformes
Order Esociformes
Order Eurynotoidiformes †
Order Euteleostei incertae sedis
Order Gadiformes
Order Gasterosteiformes
Order Gobiesociformes
Order Gobiiformes
Order Gonorhynchiformes accepted as Gonorynchiformes
Order Gonorynchiformes
Order Guildayichthyiformes †
Order Gymnotiformes
Order Halecomorphi incertae sedis
Order Haplolepidiformes †
Order Holocentriformes
Order Ichthyodectiformes †
Order Ionoscopiformes †
Order Kyphosichthyiformes †
Order Lampriformes
Order Lepisosteiformes
Order Leptolepidiformes †
Order Lophiiformes
Order Louwoichthyiformes †
Order Luganoiiformes †
Order Lycopteriformes †
Order Macrosemiiformes †
Order Megalopiformes accepted as Elopiformes
Order Mormyriformes accepted as Osteoglossiformes
Order Myctophiformes
Order Neopterygii incertae sedis
Order Notacanthiformes
Order Ophidiiformes
Order Ophiopsiformes †
Order Ophisthomi †
Order Osmeriformes
Order Osteoglossiformes
Order Osteoglossomorpha incertae sedis
Order Pachycormiformes †
Order Palaeonisciformes †
Order Palaeoniscimorpha incertae sedis
Order Palaeoniscoidea † accepted as Palaeonisciformes †
Order Paleonisciformes † accepted as Palaeonisciformes †
Order Panxianichthyformes †
Order Paphosisciformes †
Order Parasemionotiformes †
Order Pattersonichthyiformes †
Order Peltopleuriformes †
Order Perciformes
Order Percomorpha incertae sedis
Order Percopsiformes
Order Perleidiformes †
Order Pholidophoriformes †
Order Pholidophoroidea † accepted as Pholidophoriformes †
Order Pholidopleuriformes †
Order Pleuronectiformes
Order Polymixiiformes
Order Prohaleciteiformes †
Order Protacanthopterygii incertae sedis
Order Ptycholepiformes †
Order Pycnodontiformes †
Order Redfieldiiformes †
Order Saccopharyngiformes
Order Salmoniformes
Order Saurichthyiformes †
Order Scanilepiformes †
Order Scorpaeniformes
Order Semionotiformes †
Order Siluriformes
Order Sorbininardiformes †
Order Stephanoberyciformes
Order Stomiiformes
Order Synbranchiformes
Order Syngnathiformes
Order Tarrasiiformes †
Order Teleostei incertae sedis
Order Teleostii (awaiting allocation)
Order Tetraodontiformes
Order Tselfatiformes accepted as Tselfatiiformes †
Order Tselfatiiformes †
Order Zeiformes
Genus Avitosmerus Fielitz, 2002 †
Genus Avonichthys Wilson, Pardo & Anderson, 2018 †
Genus Bacchiaichthys Bannikov & Sorbini, 2000 †
Genus Bethesdaichthys Bender, 2001 †
Genus Bluefieldius Mickle, 2018 †
Genus Choctawichthys Schwarzhans & Stringer in Stringer et al., 2020 †
Genus Cladistia Cope, 1870
Genus Diplospondichthys Filleul & Dutheil, 2004 †
Genus Fuyuanichthys Xu, Ma & Ren, 2018 †
Genus Gwyneddocaris Bock, 1946 †
Genus Otolithopsis Huddleston, 1983 †
Genus Otolithus Koken, 1884 † accepted as Otolithopsis Huddleston, 1983 †
Class Agnatha (awaiting allocation)
Class Cephalaspidomorphi
Class Chondrichthyes
Class Conodonta †
Class Dipnoi
Class Dipnomorpha accepted as Dipnoi
Class Galeaspida †
Class Gnathostomata incertae sedis †
Class Myxini
Class Osteichthyes (awaiting allocation)
Class Osteichthyes incertae sedis †
Class Ostracodermi †
Class Pisces (awaiting allocation)
Class Placodermi †
Class Pteraspidomorphi †
Class Sarcopterygii
Class Thelodonti †
Genus Emmonsaspis Resser & Howell, 1938 †
Genus Harajicadectes Choo, Holland, Clement, King, Challands, Young & Long, 2024 †
Genus Kahamachli Malkani, 2019 †
Genus Nuucichthys Lerosey-Aubril & Ortega-Hernández, 2024 †
Genus Rhynchocopros Hunt, Lucas & Spielmann, 2013 †
Genus Santamariacopros Hunt, Lucas & Spielmann, 2013 †
Genus Squirmarius McCoy, Wittry, Sadabadi & Mayer, 2023 †
Class Chordata (awaiting allocation)
Class Eotetrapodiformes incertae sedis
Phylum Cnidaria
Phylum Ctenophora
Phylum Cycliophora
Phylum Cycloneuralia incertae sedis
Phylum Ecdysozoa incertae sedis †
Phylum Echinodermata
Phylum Entoprocta
Phylum Gastrotricha
Phylum Gnathostomulida
Phylum Hemichordata
Phylum Hyolitha †
Phylum Kinorhyncha
Phylum Lobopoda †
Phylum Loricifera
Phylum Micrognathozoa
Phylum Mollusca
Phylum Monoblastozoa accepted as Animalia incertae sedis
Phylum Nematoda
Phylum Nematomorpha
Phylum Nemertea
Phylum Onychophora
Phylum Orthonectida
Phylum Phoronida
Phylum Placozoa
Phylum Platyhelminthes
Phylum Pogonophora accepted as Siboglinidae Caullery, 1914
Phylum Porifera
Phylum Priapula accepted as Priapulida
Phylum Priapulida
Phylum Problematica † accepted as Animalia incertae sedis
Phylum Rhombozoa
Phylum Rotifera
Phylum Scalidophora incertae sedis
Phylum Sipuncula
Phylum Tardigrada
Phylum Trace fossils †
Phylum Vendobionta †
Phylum Vestimentifera accepted as Siboglinidae Caullery, 1914
Phylum Vetulicolia †
Phylum Vinctiplicata incertae sedis †
Phylum Xenacoelomorpha
Genus Trilobocaris Pribyl, 1953 †
Kingdom Archaea
Kingdom Bacteria
Kingdom Chromista
Kingdom Fungi
Kingdom Plantae
Kingdom Protista accepted as Protozoa
Kingdom Protozoa
Kingdom Viruses