Species (1.675)
- Orthoamphisiella breviseries Foissner, Agatha & Berger 2002
- Parakahliella namibicola Foissner, Agatha & Berger 2002
- Urosomoida namibiensis Foissner, Agatha & Berger 2002
- Nudiamphisiella interrupta Foissner, Agatha & Berger 2002
- Urosomoida monostyla Foissner, Agatha & Berger 2002
- Vermioxytricha arenicola Foissner, Agatha & Berger 2002
- Urosomoida reticulata Foissner, Agatha & Berger 2002
- Laurentiella monilata Dragesco & Njiné 1971
- Histrio quadrinucleatus
- Stichochaeta strenua sensu Gourret & Roeser 1888
- Steinia ovalis Reuter 1961
- Steinia torrenticola Sramek-Husek 1957
- Calvobakuella terricola nonZR
- Oxytricha platystoma Ehrenberg 1831
- Oxytricha gibba Müller 1786
- Bicornella sola Bugrova 2003
- Rubioxytricha haematoplasma Blatterer & Foissner 1990
- Cossothigma dubium Dragesco 1954
- Oxytricha tetranucleata Nemeth in Gelei 1950
- Oxytricha trifallax Greslin et al. 1989
- Strombidium planctonicum ssp. viride
- Tachysoma parvulum Corliss & Snyder 1986
- Trichoda rostrata Müller 1786
- Histriculus similis
- Holosticha musculus Kahl 1932 ssp. musculus
- Kerona acarus Müller 1773
- Himantopus acarus Müller 1773
- Trichoda gallina Müller 1786
- Aspidisca acerosa
- Gastrostyla minima senus Foissner 1997
- Stylonychia massula Dumas
- Stylonychia membranaceus Dumas
- Stylonychia mutabunda Dumas
- Stylonychia rostrata Dumas
- Stylonychia trochiformis Dumas
- Stylonychia mamillata Dumas 1929
- Stylonychia frontosus Dumas
- Stylonychia globifrons Dumas
- Stylonychia fastigata Dumas
- Stylonychia excavata Dumas
- Stylonychia ellpisoides Dumas
- Stylonychia dupla Dumas
- Stylonichia aurifrons Dumas
- Stylonychia anfracta Dumas
- Stylonychia cornifrons Dumas
- Urosoma planctonisum sensu Lepsi 1965
- Stylonychia limbiformis Dumas
- Stylonichia fronte-albens Dumas 1929
- Oxytricha euglenivora Kahl 1932
- Euplotopsis elegans Kahl 1932
- Euplotopsis encysticus Yonezawa 1985
- Histriculus erethesticus
- Euplotopsis finki
- Amphisiella edaphoni Berger & Foissner 1987
- Oxytricha fallax Stein 1859
- Oxytricha faurei Tucolesco 1962
- Trichoda fimbriata Müller 1786
- Oxytricha ferruginea Stein 1859
- Oxytricha muscorum Kahl 1932
- Euplotopsis bisulcatus 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
- Urostyla lynchi Horvath 1939
- Laurentiella macrostoma
- Oxytricha longicirrata Kahl 1932
- Urostrongylum deflectum
- Oxytricha discifera Kahl 1932
- Holosticha dubium
- Stylonychia dupla
- Paruroleptus dubium
- Himantopus corona Müller 1786
- Stylonichia corniculata Dumas 1929
- Trichoda delphis
- Stylonychia clavata
- Trichoda crinita
- Urosoma caudatum Stokes 1887
- Oxytricha chlorelligera Kahl 1932
- Neogeneia costata
- Stylonichia capucinus Dumas 1930
- Euplotes balteata
- Oxytricha crassistillata Kahl 1932
- Euplotes balteatus
- Stylonichia auriformis
- Euplotoides amieti Dragesco 1970
- Amphisiella arenicola
- Holosticha musculus Kahl 1932
- Tachysoma monstrosa
- Laurentia monilata Dragesco & Njiné 1971
- Coniculostomum monilatum Dragesco & Njiné 1971
- Laurentiella monilata Dragesco & Njiné 1971
- Urostyla algivora
- Urosoma acuta Dragesco 1972
- Oxytricha acuminatus Maskell 1886
- Stylonichia bicaudatus Dumas 1937
- Euplotopsis apsheronicus Agamaliev 1966
- Urospina calcibia