Species (22.489)
- Cometodendron erectum Haeckel 1866
- Cometodendron erectum Swarczewsky 1928
- Coniculostomum indica Ammermann, Sapra & Schlegel 1987
- Cotensia commensalis Jankowski 1982
- Cothurnia acuta Levander 1915
- Cothurnia acuta sensu Wang & Nie 1932
- Cothurnia canthocampti Stokes 1886
- Cothurnia compressa sensu Wailes 1928
- Cothurnia compressa Claparède & Lachmann 1858
- Cothurnia innata sensu Wailes 1928
- Cothurnia canthocampti Monard 1918
- Cothurnia innata sensu Sahrhage 1916
- Cothurnia innata Müller 1786
- Cothurnia innata Hofker 1930
- Cothurnia nodosa sensu Wailes 1928
- Cothurnia lata Kellicott 1883
- Cothurnia lata Wailes 1928
- Cothurnia nodosa Entz 1884
- Cothurnia nodosa Fromentel ? Clap. & Lachmann: 123 1874
- Cothurnia nodosa Claparède & Lachmann 1858
- Cothurnia pupa Cohn 1866
- Cothurnia pupa Eichwald 1849
- Crassicolaria latinermedia Nagy 1986
- Cranotheridium taeniatum Schewiakoff 1892
- Cristigera pleuronemoides Roux 1899
- Cristigera pleuronemoides sensu Penard 1922
- Cristigera pleuronemoides Roux 1901
- Cryptochilium bermudense Biggar 1932
- Cryptochilium echini Maupas 1883
- Cryptochilium griseolum Maupas 1883
- Oxytricha procera Kahl 1932
- Cryptochilium polynucleatum Nie 1934
- Cryptochilum echini Maupas 1883
- Cyclidium nigricans Fromentel ?
- Cyclidium nigricans Kahl 1928
- Cyclidium paradoxum Bürger 1908
- Nassulopsis vorax
- Cycloposthium bipalmatum Fiorentini 1890
- Cyrtohymena candens Kahl 1932
- Cycloposthium bipalmatum Strelkow 1939
- Oxytricha planctonica sensu Wilbert 1986
- Cyttarocylis acuminata Daday 1887
- Cyttarocylis cassis Haeckel 1873
- Cyttarocylis acuminata Ehrenberg 1874
- Oxytricha plana Gelei & Szabados 1950
- Oxytricha phytophaga Gelei & Szabados 1950
- Dadayiella ganymedes Entz 1884
- Daturella datura Brandt 1906
- Paraenchelys brachyarmata Foissner, Agatha & Berger 2002
- Hemiurosoma polynucleata Foissner 1984
- Holophrya kessleri Mereschkowsky 1878
- Holophrya kessleri Faure-Fremiet 1924
- Oxytricha micans Gellert 1955
- Acaryophrya mamillata
- Kerona multipes Fromentel 1876
- Cyclotrichium ltmneticum
- Oxytricha magna Gelei & Szabadosz 1950
- Hystercineta paludinarum Stein 1861
- Jeppsia calani Jepps 1937
- Jeppsia calani Corliss 1960
- Juxtamesniella depressa Rossolimo 1926
- Juxtamesniella deronis Puytorac 1969
- Juxtamesniella ocevskiji Puytorac 1959
- Juxtamesniella ochridiana Puytorac 1959
- Juxtamesniella maritui Cheissin 1930
- Juxtamesniella taupodrili Kijenskij 1925
- Kentrochona nebaliae Rompel 1894
- Juxtamesniella variabilis Rossolimo 1926
- Juxtamesniella vermicularis Cheissin 1928
- Kerona rostrata Müller 1786
- Lembadium concavum Dumas 1929 ssp. non
- Leptocirra tekirghiolica Tucolescu 1962
- Lembadium ovulaeformis Dumas 1929 ssp. non
- Kerona haustellum Müller 1786
- Litontus carinatus Stokes 1885
- Litontus vesiculosus Stokes 1885
- Litontus trichocystus Stokes 1885
- Loxodes cucullio
- Kerona fimbriata Müller 1786
- Loxophyllum elongatum Dumas 1937
- Loxophyllum elongatum Tucolesco 1962
- Loxophyllum rostratum Cohn 1866
- Kerona elongata Fromentel 1876
- Loxophyllum verrucosum Stokes 1893
- Loxophyllum verrucosum Florentin 1889
- Marginotricha grandis Dragesco 1954
- Maupasella criodrili Heidenreich 1935
- Marginotricha grandis Dragesco 1954
- Oxytricha mistacea
- Kerona lacerata Fromentel 1876
- Oxytricha multiseta Dragesco 1966
- Metacylis mediterranea Mereschkowsky 1880
- Metacylis mediterranea Jörgensen 1924
- Metopus caudatus Cunha 1915
- Metasicuophrya petteri Albaret 1973
- Oxytricha minima Dragesco 1970
- Metopus caudatus Penard 1922
- Microthorax costatus Kahl 1926
- Microthorax costatus Dumas 1937
- Mirofolliculina limnoriae Giard 1883