Species (22.489)
- Haptophrya planarium Siebold 1839
- Hartmannula acrobates Entz 1884
- Heteropolaria horizontalis Chatton 1936
- Trachelophyllum triangulatum
- Heteropolaria colisarum Foissner & Schubert 1977
- Hirsutusporos austrosimulii Batson 1983
- Histriculus similis Quennerstedt 1867
- Histriculus similis sensu Buitkamp
- Histrio muscorum Foissner, Blatterer, Berger & Kohmann 1991
- Histrio muscorum Kahl 1932
- Chilodon vorax Stokes 1887
- Choronochona pectinata Jankowski 1973
- Clausiocola apostropha Lom 1959
- Clausofolliculina clausa Hadzi 1951
- Clevelandella panesthide Kidder 1938
- Coccudina costata Ehrenberg 1834
- Coccudina costata Dujardin 1841
- Coelophrya roquei Puytorac & Dragesco 1969
- Coelophrya roquei Puytorac & Dragesco 1968
- Coelosomides marina Anigstein 1912
- Coelosomides marina Strand 1928
- Kerona calvitium Müller 1773
- Kerona mytilus Müller 1786
- Cothurnia vaga Schrank 1776
- Cothurnia vaga Roux ?
- Cothurnia valvata D'Udekem ?
- Cothurnia valvata Stokes 1893
- Coxliella laciniosa Brandt 1906
- Coxliella laciniosa Kofoid & Campbell 1929
- Cranotheridium taeniatum Schewiakoff 1893
- Crassicolaria parvintermedia Nagy 1986
- Crypacineta operata Swarczewsky ()
- Cyclochyrrha ophiotrix Fabre-Domergue 1888
- Cyrtohymena aestuarii Margalef Lopez 1945
- Kerona rostrata Dumas 1937
- Kentrochona nebaliae Doflein 1897
- Kerona lanceolata Dujardin 1841
- Klonstricha horrida Vuxanovici 1963
- Hypotrichidium geleii Lohmann 1908
- Kuklikophrya dragescoi Njine 1979
- Oxytricha candens Njine 1979
- Lacrymaria cohnii Kent 1881
- Lacrymaria cohnii sensu Buitkamp & Wilbert
- Lacrymaria spiralis Kahl 1926
- Lacrymaria spiralis Corliss & Snyder 1986
- Lacrymaria tenuicula Dumas 1876
- Lacrymaria tenuicula Fromentel 1876
- Lagenophrya mamillata Gelei 1954
- Lagenophrya ovalis Gelei 1954
- Lagenophrys patina Stokes 1887
- Kerona rotundata Fromentel 1876
- Laurentiella macrostoma Dragesco 1966
- Kerona histrio Müller 1786
- Laurentiella macrostoma Dragesco & Njiné 1971
- Latifolliculina incolorea Hadzi 1951
- Spathidium melophorme
- Lembadion ovale Dumas 1886
- Lembadion ovale Gourret & Roeser 1886
- Lobochona limnoriae Dons 194?
- Oxytricha balladynula Kahl 1932
- Opisthotricha macrostoma
- Aspidisca acerosa Jankowski 1978
- Netaspidisca acerosa Jankowski 1979
- Nicollela ctenodactyli Chatton & Pérard 1919
- Nuechterleinella corneliae Matthes 1990
- Nytotherus wichancoi Kidder 1937
- Oldesloeria mimeticus Kahl 1930
- Tintinnopsis lobiancoi ssp. fusiformis
- Opercularia allensi Stokes 1877
- Opercularia allensi Stokes 1887
- Ophrydiopsis concava Penard 1922
- Opisthotricha elongata Smith 1897
- Opisthotricha elongata Grandori & Grandori 1934
- Oxytricha immemorata Alekperov 1984
- Opisthotricum janus Buisson 1923
- Kerona vannus Müller 1786
- Orphryoglena griseovirens Perty 1852
- Ormosella cornucopia Kofoid & Campbell 1929
- Ormosella cornucopia Brandt ()
- Orphryoglena panophrys Perty 1852
- Otostoma carteri Kent 1881
- Otostoma carteri Carter 1856
- Oxytricha alfredi Berger 1999
- Oxytricha balladyna Song & Wilbert 1989
- Oxytricha durhamiensis Berger 1999
- Oxytricha geleii Wilbert 1986
- Kerona subrotundata Dumas 1930
- Kerona silurus Dumas 1929 ssp. congyrans
- Oxytricha kahlovata Berger 1999
- Oxytricha labiata Fromentel 1876
- Oxytricha labiata Dumas 1930
- Oxytricha monspessulata Chatton & Seguela 1940
- Oxytricha ovalis Schmarda 1854
- Oxytricha ovalis Fromentel 1876
- Oxytricha ovalis Schmarda 1854
- Oxytricha oxymarina Berger 1999
- Oxytricha ovalis Kahl 1932
- Oxytricha pseudofurcata Berger 1973
- Oxytricha parahalophila Wang & Nie 1935
- Oxytricha pseudofusiformis Dragesco & Dragesco-Kerneis 1986