Species (22.489)
- Platophrya rotunda Hentschel 1915
- Platycola amphora Swarczewsky 1930
- Platycola ampulla Fromentel 1874
- Platycola aurita
- Pseudohaplocaulus infravacuolatus Foissner & Brozek 1996
- Pseudohaplocaulus anabaenae Stiller 1940
- Pseudohaplocaulus nicoleae Precht 1935
- Pseudoholophrya terricola Berger, Foissner & Adam 1984
- Pseudokahliella marina Foissner, Adam & Foissner 1982
- Pseudokeronopsis carnea Cohn 1866
- Pseudokeronopsis flava Cohn 1866
- Pseudometacylis ornata Balech 1968
- Pseudomicrothorax agilis Mermod 1914
- Pseudomicrothorax foliformis Foissner 1987
- Pseudomicrothorax dubius Maupas 1883
- Pseudomicrothorax gracilis Kahl 1926
- Pseudonyctotherus corlissi Earl 1970
- Pseudoplagiopyla sinistra Small & Lynn 1985
- Pseudoplatynematum loricatum Bock 1952
- Pseudoplatynematum parvum Bock 1952
- Pseudoplatyophrya nana Kahl 1926
- Pseudoplatyophrya saltans Foissner 1988
- Pseudoprorodon arenicola Kahl 1933
- Pseudoprorodon eforianus Tucolesco 1962
- Pseudoprorodon armatus Kahl 1930
- Pseudoprorodon ellipticus Kahl 1930
- Pseudoprorodon emmae Bergh 1896
- Pseudoprorodon foliosus Foissner 1983
- Pseudoprorodon farctus Claparède & Lachmann 1859
- Pseudoprorodon incisus Bock 1952
- Pseudoprorodon gigas Cunha
- Pseudoprorodon halophilus Kahl 1930
- Pseudoprorodon lieberkuehni Bütschli 1889
- Pseudoprorodon mononucleatus Bock 1952
- Pseudoprorodon niveus Ehrenberg 1833
- Pseudoprorodon sossiae Dietz 1964
- Pseudoprorodon sulcatus Kahl 1927
- Pseudoprorodon vesiculatus Kahl 1927
- Pseudostrombidium planctonticum Horváth 1933
- Pseudothuricola dionyisi Penard 1914
- Pseudotrachelocerca trepida Kahl 1928
- Pseudouroleptus buitkampi Foissner 1982
- Pseudouroleptus procerus Berger & Foissner 1987
- Pseudouroleptus terrestris Hemberger 1985
- Pseudourostyla cristata Jerka-Dziadosz 1964
- Pseudourostyla urostyla Claparède & Lachmann 1858
- Pseudovorticella chlamydophora Penard 1922
- Pseudourostyla muscorum Kahl 1932
- Pseudourostyla franzi Foissner 1987
- Pseudovorticella margaritata Fromentel 1876
- Pseudovorticella mutans Penard 1922
- Pseudovorticella pseudocampanula Foissner 1979
- Pseudovorticella sauwaldensis Foissner & Schiffmann 1979
- Pseudovorticella quadrata Foissner 1979
- Pseudovorticella sphagni Foissner & Schiffmann 1974
- Pseudovorticella vestita Stokes 1883
- Psilotricha acuminata Stein 1859
- Psilotrix ovalis Gourret & Roeser 1888
- Psilotricha viridis Penard 1922
- Psilotricha fallax Zacharias 1896
- Rhabdophrya trimorpha Chatton & Collin 1910
- Rhabdosella octogenata Kofoid & Campbell 1929
- Rhabdostoma roscoffensis Dragesco 1960
- Rhabdostyla arborea Greef 1888
- Rhabdostyla arenicolae Fabre-Domergue 1888
- Rhabdonellopsis minima Kofoid & Campbell 1929
- Rhabdostyla bosminae Levander 1907
- Rhabdostyla commensalis Möbius 1888
- Rhabdostyla chironomi Kahl 1933
- Rhabdostyla congregata Zacharias 1903
- Rhabdostyla discostyla Svec 1897
- Rhabdostyla conipes Kahl 1935
- Rhabdostyla cyclopis Kahl 1935
- Rhabdostyla cylindrica Stiller 1933
- Rhabdostyla dubia Foissner 1979
- Rhabdostyla ephemerae Kahl 1935
- Rhabdostyla hungarica Stiller 1931
- Rhabdostyla fromenteli Kent 1881
- Rhabdostyla inclinans Müller 1773
- Rhabdostyla invaginata Stokes 1886
- Rhabdostyla limnophili Kahl 1935
- Rhabdostyla libera Kahl 1933
- Rhabdostyla longipes Kent 1881
- Rhabdostyla muscorum Kahl 1935
- Rhabdostyla lumbriculi Penard 1922
- Rhabdostyla nebulifera Fromentel 1874
- Rhabdostyla ovum Kent 1881
- Rhabdostyla pyriformis Perty 1852
- Rhabdostyla patula Perty 1852
- Rhabdostyla porculus Penard 1922
- Rhabdostyla ringens sensu Fromentel ?
- Rhabdostyla sphaeroides Fromentel 1874
- Rhagadostoma nudicaudatum Kahl 1926
- Rhabdothorax macrostegon Latteur & Bousez 1970
- Rhinakis faurei Fryd-Versavel, Iftode & Deroux 1980
- Rhinodisculus cristatus Mansfeld 1923
- Rhinozeta addoensis Van Hoven, Gilchrist & Hamilton-Attwell 1988
- Rhinozeta multiplatus Van Hoven, Gilchrist & Hamilton-Attwell 1988
- Rhinozeta caecalis Van Hoven, Gilchrist & Hamilton-Attwell 1988
- Rhinozeta cristata Van Hoven, Gilchrist & Hamilton-Attwell 1988