• Actinophycus kordeae A.G. Vologdin †
• Actinophycus obrutschevi K.B. Korde †
• Actinophycus parvus A.G. Vologdin †
• Actinophycus ramosus A.G. Vologdin †
• Ainactis alpina Kützing
• Ainactis calcarea (J.E. Smith) Kützing
• Ainactis gothica Areschoug
• Ainactis haematites (Lamarck & De Candolle) Trevisan
• Bija grandis Korde †
• Cayeuxia americana J.H. Johnson †
• Cayeuxia anae O. Dragastan †
• Cayeuxia atanasiui O. Dragastan †
• Cayeuxia elliottii O. Dragastan †
• Cayeuxia fruticulosa J.H. Johnson & H.V. Kaska †
• Cayeuxia kurdistanensis G.F. Elliott †
• Cayeuxia lemaitrae O. Dragastan †
• Cayeuxia mediterranea M. Herak †
• Cayeuxia nodosa F.W. Anderson †
• Cayeuxia piae M.M. Frollo †
• Dasyactis biasolettiana Kützing
• Dasyactis brunnea Nägeli ex Kützing
• Dasyactis crustacea (Kützing) P.L. Crouan & H.M. Crouan
• Dasyactis fissurata P.L. Crouan & H.M. Crouan
• Dasyactis hospita (Kützing) P.L. Crouan & H.M. Crouan
• Dasyactis kunzeana Kützing
• Dasyactis mollis Wood
• Dasyactis naegeliana Kützing
• Dasyactis plana (Harvey) Kützing
• Dasyactis rivularis Nägeli ex Kützing
• Dasyactis salina Kützing
• Dasyactis torfacea Nägeli ex Kützing
• Dichothrix baueriana (Grunow) Bornet & Flahault, 1886
• Dichothrix bornetiana M.A. Howe, 1924
• Dichothrix calcarea Tilden, 1897
• Dichothrix catalaunica P. González, 1930
• Dichothrix cavanillesii P. González, 1945
• Dichothrix chungii Gardner, 1927
• Dichothrix compacta (C. Agardh) Bornet & Flahault, 1885
• Dichothrix eylathensis Rayass & Dor, 1963
• Dichothrix fucicola (Kützing) Bornet & Flahault, 1886
• Dichothrix fusca F.E. Fritsch, 1918
• Dichothrix gypsophila (Kützing) Bornet & Flahault, 1885
• Dichothrix handelii Skuja, 1937
• Dichothrix interrupta W. West & G.S. West, 1894
• Dichothrix meneghiniana (Kützing) Forti, 1911
• Dichothrix minima Setchell & N.L. Gardner, 1918
• Dichothrix montana Tilden, 1902
• Dichothrix nordstedtii Bornet & Flahault, 1886 accepted as Homoeothrix caespitosa (Rabenhorst) Kirchner, 1900
• Dichothrix olivacea Bornet & Flahault, 1886
• Dichothrix orsiniana (Kützing) Bornet & Flahault, 1886
• Dichothrix penicillata Zanardini, 1858
• Dichothrix rupicola Collins, 1900
• Dichothrix saccnemoides C.-C. Jao & Y.-Y. Li, 1974
• Dichothrix seriata Setchell & N.L. Gardner, 1918
• Dichothrix sinensis C.-C. Jao
• Dichothrix spiralis F.E. Fritsch, 1918
• Dichothrix subdichotoma Woronichin, 1923
• Dichothrix utahensis Tilden, 1898
• Dichothrix willei Gardner, 1927
• Diplotrichia polyotis J.G. Agardh, 1842 accepted as Rivularia polyotis (J.G. Agardh) Hauck, 1884
• Fremyella aequalis Frémy, 1942 accepted as Microchaete aequalis (Frémy) Desikachary, 1942
• Fremyella bossei Frémy, 1942 accepted as Fortiea bossei (Frémy) Desikachary, 1959
• Fremyella diplosiphon (Bornet & Flahault) Drouet
• Fremyella elongata Frémy, 1942 accepted as Microchaete elongata (Frémy) Desikachary, 1959
• Fremyella vitiensis (Askenasy) De Toni fil, 1936 accepted as Microchaete vitiensis Askenasy ex Bornet & Flahault, 1885
• Gaillardotella natans (Hedwig) Bory de St.-Vincent
• Gardnerula corymbosa (Harvey) De Toni, 1936
• Gardnerula spongiosa (Zanardini) Tseng & Hua, 1982
• Gardnerula tenuissima Tseng & Hua, 1984
• Gardnerula xishaensis Tseng & Hua, 1982
• Globuloella botomensis Korde †
• Globuloella incompacta Korde †
• Hedstroemia aequalis Høeg †
• Hedstroemia australis J.H. Johnson †
• Hedstroemia bifilosa Rothpletz †
• Hedstroemia corymbosa Pia †
• Hedstroemia halimedoidea Rothpletz †
• Hedstroemia moldavica O. Dragastan †
• Hedstroemia nidarosiensis Høeg †
• Heteractis mesenterica Kützing
• Heteractis pruniformis Kützing
• Isactis caespitosa (Kützing) Wolle
• Isactis centrifuga Bornet
• Isactis fluviatilis (Kützing) Kirchner
• Isactis nipponica Hirose
• Isactis plana (Harvey) Thuret ex Bornet & Flahault, 1886
• Jatuliana furcata Korde †
• Linckiella atra (Roth) Gaillon
• Linckiella dura (Roth) Gaillon
• Linckiella natans (Hedwig) Gaillon accepted as
• Lophopodium sandvicense Nordstedt, 1878 accepted as Calothrix sandvicensis (Nordstedt) Schmidle, 1897
• Mastichonema pluviale
• Mastichonema thermale Schwabe, 1837 accepted as Calothrix thermalis (Schwabe) Hasngirg, 1884
• Mastigonema donnellii Wolle ex Forti, 1907
• Mastigonema donnellii Wolle, 1879 accepted as Mastigonema donnellii Wolle ex Forti, 1907
• Mastigonema thermale Schwabe
• Microchaete aequalis (Frémy) Desikachary, 1942
• Microchaete aeruginea Batters, 1892
• Microchaete aeruginosa Batters
• Microchaete brunescens Komárek