Species (15.149)
- Tracheloraphis filiformis Dragesco 2002
- Tracheloraphis exilis Dragesco 2002
- Acineta collini Kahl 1934
- Trachelocerca bodiani Dragesco 1963
- Trachelocerca stephani Dragesco 1965
- Bryometopus triquetus
- Dileptus anguilla Kahl 1931
- Metopus contortus ssp. lev.
- Notocephalus parvulus Corliss & Snyder 1986
- Prorodon arenicola Kahl 1933
- Sathrophilus arenicolus Dragesco 2002
- Trachelocerca gigas
- Trachelocerca ditis Wright 1982
- Vorticella ascoideum Lindner
- Telotrochidium matthaii Gulati 1926
- Opisthonecta henneguyi Gelei 1954
- Gerda caudata Phillips 1883
- Ophrydium caudatum Phillips 1883
- Ophrydium caudata Phillips 1883
- Hausmanniella discoides Gellert 1956
- Hastatella radians Stiller 1971 ssp. monilata
- Cranotheridium foliosus Foissner 1983
- Cohnilembus caeci Powers 1935
- Entodiscoides sabulonis Powers 1935
- Bryometopus sphagni sensu Groliere 1977
- Tachysoma persincirra sensu Hemberger 1985
- Amphileptus rotundus Kahl 1926
- Lionotus lamella Kahl 1926 ssp. rotundus
- Blepharisma coerulea Gajevskaja 1927
- Dileptus anser sensu Kahl 1931
- Discomorpha lauterborni Wetzel 1928
- Strongylidium muscorum sensu Foissner
- Colpidium campyloides Sramek-Husek 1947
- Colpidium uncinatum Fernandez-Faliano & Ruiz 1972
- Opercularia parallela sensu Maskell
- Nassula lateritia sensu Faure-Fremiet 1967
- Colpidium glaucomaeforme Gelei 1935
- Gastronauta membranaceus sensu Deroux & Dragesco 1968
- Bursostoma sporophaga Beers & Sherwood 1966
- Epistylis anilocrae André 1910
- Epistylis tincta Stokes 1887
- Epistylis umbellaria Linnaeus 1758
- Epistylis sp. a Hentschel 1916
- Epistylis anastatica sensu Stiller 1931
- Epistylis steini sensu Penard
- Zoothamnium sp. a Hentschel 1916
- Zoothamnium sp. b Hentschel 1916
- Ophrydium ophrydiiformis Nüsslin 1884
- Cothurnia grandis Dons 1928
- Cothurnia crystallina sensu Swarczewsky
- Cothurnia longipes Mereschkowski 1879
- Cothurnia compressa Wailes 1928 ssp. flexa
- Cothurnia nodosa Mereschkowski 1879 ssp. longipes
- Thoracophrya luciae Wand & Nie 1932 ssp. livida
- Strombidium styliferum Kahl 1935 ssp. minor
- Pseudoprorodon major Kahl 1927
- Prorodon completum Kahl 1927 ssp. candens
- Prorodon completum ssp. completum
- Prorodon nudicaudatum Kahl 1927
- Chilodon nanus Kahl 1928
- Spathidium spathula sensus Kahl 1926
- Uronema powersi Kahl 1934
- Anophrys vermiformis Powers 1933
- Corynophrya francottei Sand 1895
- Corynophrya companula Schröder 1906
- Corynophrya steueri Schröder 1911
- Corynophrya interrupta Schröder 1906
- Podophrya elongata sensu Wailes 1932
- Colpidium echini Russo 1914
- Steinia inquieta sensu Foissner 1984
- Litonotus lamella sensu Fryd-Versavel et al. 1975
- Colpidium colpoda Vuxanovici 1962 ssp. pusillus
- Glaucoma pyriformis sensu Bhatia 1920
- Holosticha manca Kahl 1932
- Holosticha kessleri Wrzesniowski 1877
- Holosticha oculata Mereschkowsky 1877
- Holosticha setifera Kahl 1932
- Holosticha wrzesniowskii Mereschkowsky 1877
- Holosticha punctata Rees 1884
- Holosticha mystacea Stein 1859
- Holosticha violacea Kahl 1928
- Holosticha vernalis Stokes 1887
- Holosticha arenicola Kahl 1932
- Holosticha viridis Kahl 1932
- Holosticha piscis
- Holosticha stagnatilis Stokes 1891
- Holosticha aquarum
- Trichotaxis aquarum ssp. aquarum
- Holosticha aquarum ssp. aquarum
- Holosticha velox Quennerstedt 1869
- Lagynus vestitus Kahl 1927
- Metopus bothrostoma Stokes ssp. bothrostoma
- Thoracophrya luciae Kahl 1926 ssp. luciae
- Oxytricha furcata Smith 1897
- Prorodon ovum sensu Blochmann
- Oxytricha micans Engelmann 1862
- Oxytricha ovalis Kahl 1932
- Oxytricha sphagni Kahl 1932
- Oxytricha procera Kahl 1932
- Oxytricha parallela sensu Kahl 1932