Species (15.149)
- Xystonella lohmanni Brandt 1906
- Xystonella longicauda Brandt 1906
- Xystonella coronata Hensen 1911
- Xystonella minuscula Kofoid & Campbell 1929
- Xystonella scandens Brandt 1906
- Xystonellopsis abbreviata Kofoid & Campbell 1929
- Xystonella treforti Daday 1887
- Xystonellopsis acuminata Kofoid & Campbell 1929
- Xystonellopsis brandti Laackmann 1909
- Xystonellopsis armata Brandt 1906
- Xystonellopsis clevei Kofoid & Campbell 1929
- Xystonellopsis constricta Kofoid & Campbell 1929
- Xystonellopsis conicauda Kofoid & Campbell 1929
- Xystonellopsis cyclas Kofoid & Campbell 1929
- Xystonellopsis crassispinosa Kofoid & Campbell 1929
- Xystonellopsis cymatica Brandt 1906
- Xystonellopsis dahli Brandt 1906
- Xystonellopsis dicymatica Brandt 1906
- Xystonellopsis dilatata Brandt 1906
- Xystonellopsis epigrus Kofoid & Campbell 1929
- Xystonellopsis hastata Biedermann 1893
- Zoothamnium adamsi Stokes 1885
- Zoothamnium affine Stein 1854
- Zoothamnium aselli Claparède & Lachmann 1858
- Zoothamnium cienkowskii Wrzesniowski 1877
- Zoothamnium commune Kahl 1935
- Zoothamnium conchulaecola Dumas 1929
- Zoothamnium congerminale Dumas 1930
- Zoothamnium congermanum Dumas 1930
- Zoothamnium corymbiformis Dumas 1930
- Zoothamnium helicaecola Dumas 1929
- Trichodina domerguei Wallengren 1897
- Trichodina reticulata Hirschmann & Partsch 1955
- Trichodina urinaria Dogiel 1940
- Trichodinella epizootica (Raabe 1950
- Trichodinella maior Reichenbach-Klinke
- Pyxicola pusilla Kent 1882
- Pseudovorticella monilata Tatem 1870
- Saprodinium putrinum Lackey 1925
- Scyphidia rugosa Dujardin 1841
- Satrophilus muscorum
- Siroloxophyllum utriculariae Penard 1922
- Spathidium amphoriforme Greeff 1888
- Oxytricha longissima Dragesco & Njine 1971
- Spathidium ampulliforme Kaltenbach 1960 ssp. minuta
- Spathidium bavariense Kahl 1930 ssp. simplinucleatum
- Oxytricha maeceps
- Spathidium regium
- Sphaerophrya epizoica Hammann 1952
- Spirostomum ambiguum Müller 1786
- Stentor caeruleus Ehrenberg 1830
- Steinia ultricirrata Berger & Foissner 1987
- Stentor iqneus
- Spiretella plankticola
- Stentor roeseli Ehrenberg 1835
- Stentor muelleri Ehrenberg 1831
- Stokesia vernalis Wenrich 1929
- Strobilidium caudatum Fromentel 1876
- Strombilidium turbo
- Apiretta plancticola
- Strombilidium humile
- Stylonichia pustulata
- Strombilidium viride
- Actinobolus piriformis
- Stylonychia mytilus-Komplex
- Tachysoma humicola Gellert 1957
- Thigmogaster oppositevacuolatus Augustin & Foissner 1989
- Lagynus kessleri Mereschkowski 1924
- Telotrochidium crateriforme Müller 1773
- Thylakidium truncatum Schewiakoff 1893
- Tetrahymena pyriformis-Komplex
- Tillina magna Gruber 1879
- Tintinnidium fluviatile Stein 1863
- Tokophrya carchesi
- Trichoda musculus
- Trimyema compressum sensu Kahl 1933
- Trichospira inversa Claparède & Lachmann 1859
- Trichodina pediculus Müller 1773
- Trithigmostoma pituitosum Foissner 1979
- Trochilioides fimbriatus Foissner 1984
- Urceolaria mitra Siebold 1850
- Urocentrum mülleri
- Urolentus filum Ehrenberg 1833
- Acineta tripharetrata
- Euplotes patella Kahl 1932 ssp. planctonicus
- Uroleptus cattulus
- Uronema marinum Dujardin 1841
- Urostyla franzi Foissner 1982
- Urosomoida longa
- Urostyla weissi Stein 1859
- Urostyla weissii
- Urotricha armata Dragesco 1960
- Vaginicola crystallina Ehrenberg 1830
- Vibrio proteus
- Vorticella appuntata sensu Penard 1922
- Vorticella abreviata Keiser 1921
- Vorticella constricta Dumas 1874
- Calpionella massutiniana
- Calpionellites lata
- Holophrya spirogyrophaga Leipe 1989