Species (874)
- Oxytricha faurei Tucolesco 1962
- Trichoda fimbriata Müller 1786
- Oxytricha ferruginea Stein 1859
- Oxytricha muscorum Kahl 1932
- Oxytricha histrio Müller 1786
- Peritromus hydrarum Chardez 1983
- Pleurotricha lanceolata
- Oxytricha aeruginosa Wrzesniowski 1870
- Himantopus ludio Müller 1773
- Histrio macrostoma Gellert & Tamas 1958
- Laurentiella macrostoma
- Oxytricha longicirrata Kahl 1932
- Oxytricha discifera Kahl 1932
- Holosticha dubium
- Stylonychia dupla
- Paruroleptus dubium
- Himantopus corona Müller 1786
- Stylonichia corniculata Dumas 1929
- Stylonychia clavata
- Urosoma caudatum Stokes 1887
- Oxytricha chlorelligera Kahl 1932
- Stylonichia capucinus Dumas 1930
- Stylonichia auriformis
- Tachysoma monstrosa
- Laurentia monilata Dragesco & Njiné 1971
- Coniculostomum monilatum Dragesco & Njiné 1971
- Laurentiella monilata Dragesco & Njiné 1971
- Urosoma acuta Dragesco 1972
- Oxytricha acuminatus Maskell 1886
- Stylonichia bicaudatus Dumas 1937
- Stylonichea bistyllus Dumas 1930
- Stylonichia limbifrons
- Oxytricha cienkowskii Kowalewski 1882
- Plagiotricha diana Bory 1824
- Stylonychia cimex Müller 1773
- Oxytricha macrostyla Wrzesniowski 1870
- Steinia macrostoma Groliere 1975
- Stylonichia labiata Dumas 1930
- Oxytricha lanceolata Shibuya 1930
- Tachysoma humicola Foissner 1998 ssp. longisetae
- Trichoda erosa Müller 1786
- Laurentia acuminata Fedriani, Martin & Perez-Silva 1976
- Onychodromus acuminatus
- Gonostomum ambiguum
- Stichochaeta affinis Stein
- Steinia candens Gellert 1942 ssp. depressa
- Stylonichia octonistylus Dumas 1930
- Stylonychia mytilus Sterki 1878 ssp. pusilla
- Oxytricha mytilus Ehrenberg 1838
- Urosoma pelagica
- Kerona silurus ssp. silurus
- Steinia candens Kahl 1932 ssp. candens
- Sterkiella similis ssp. similis
- Onychodromus grandis Stein 1859 ssp. grandis
- Opisthotricha parallela Engelmann 1862 ssp. parallela
- Oxytricha fastigata ssp. fastigata
- Oxytricha pellionella Müller 1786 ssp. pellionella
- Cyrtohymena aspoecki Foissner 2004
- Oxytricha arabica Foissner neu
- Erimophrya monostyla Foissner neu
- Stylonychia harbinensis Shi & Ammermann 2004
- Coniculostomum monilata Dragesco & Njine 1971
- Cossothigma dubia Dragesco 1954
- Lamtostyla raptans Hemberger 1985
- Laurentiella strenua Dingfelder 1962
- Laurosticha monilata Dragesco & Njiné 1971
- Lamtostyla longa Hemberger 1985
- Australocirrus oscitans Blatterer & Foissner 1988
- Australocirrus octonucleatus Foissner 1988
- Cerona pustulata Perty 1852
- Ceratidium cunetum Ehrenberg 1830
- Pleurotricha multinucleata Dragesco 2003
- Cyrtohymena candens Kahl 1932 ssp. candens
- Cyrtohymena australis Foissner 1995
- Cyrtohymena balladynula Kahl 1932
- Cyclidium pediculus Müller 1773
- Cyrtohymena candens Gellert 1942 ssp. depressa
- Cyrtohymena citrina Berger & Foissner 1987
- Cyrtohymena gracilis Kahl 1932
- Cyrtohymena dubia Gellert 1956
- Cyrtohymena inquieta Stokes 1887
- Cyrtohymena muscorum Kahl 1932
- Cyrtohymena primicirrata Berger & Foissner 1987
- Cyrtohymena granulata Kahl 1932
- Cyrtohymena tetracirrata Gellert 1942
- Cyrtohymena sphagnicola Foissner 1989
- Cyrtohymena quadrinucleata Dragesco & Njiné 1971
- Drepanina falcata Savi 1913
- Dipleurostyla acuminata Roux 1899
- Micromitra retractilis Claparède & Lachmann 1858
- Notohymena rubescens Blatterer & Foissner 1988
- Nothopleurotricha setifera Diesing 1866
- Notohymena australis Foissner & O'Donoghue 1990
- Notohymena n.sp.
- Notohymena antarctica Foissner 1996
- Notohymena selvatica Hemberger 1985
- Opisthotricha muscorum Kahl 1932
- Opisthotricha ovata Kahl 1932
- Opisthotricha euglenivora Kahl 1932
- Opisthotricha parallella Engelmann 1862