Species (15.149)
- Bryometopus pseudochilodon Kahl 1932
- Bryometopus sphagni Penard 1922
- Bryometopus viridis Foissner 1987
- Bryometopus triquetrus Foissner 1993
- Bryophrya flexilis Penard 1922
- Bryophrya bavariensis Kahl 1931 ssp. minor
- Bryophyllum lingua Gelei 1933
- Cercaria hirtus Nitzsch 1827
- Balantidium geimani Earl 1973
- Balantidium giganteum Bezzenberger 1904
- Balantidium gracilis Bezzenberger 1904
- Balantidium granulosus Gauthier 1920
- Balantidium gyranus Kellicott 1888
- Balantidium helenae Bezzenberger 1904
- Balantidium haughwouti Leon 1919
- Balantidium indicum Abraham 1962
- Balantidium kirbyi Rodriguez 1939
- Balantidium hydrae Entz 1912
- Balantidium littorinae Chagas 1911
- Balantidium luciensis Poisson 1921
- Balantidium marsupialis Hegner 1934
- Balantidium major Earl 1973
- Balantidium medusarum Mereschkowsky 1879
- Balantidium minor Earl 1973
- Balantidium minutum Schaudinn 1899
- Balantidium nucleus Schrank 1803
- Balantidium orchestium Watson 1916
- Balantidium osmaniae Quadri & Navarathnam 1966
- Balantidium ovis Earl 1973
- Balantidium piscicola Entz 1913
- Balantidium philippiensis Hegner 1934
- Balantidium prionurium Grim 1985
- Balantidium polyvacuolum Lee 1963
- Balantidium struthionis Hegner 1934
- Balantidium testudinis Chagas 1911
- Balantidium tapiri Carini 1942
- Balantidium triangulatum Boisson 1959
- Balantidium xenopi Puytorac & Grain 1965
- Balantidium wenrichi Hegner 1934
- Balantiophorus bursaria Schewiakoff 1892
- Balantidium zebrascopi Grim 1992
- Balantiophorus chaetophorae Penard 1922
- Balantiophorus elongatus Schewiakoff 1892
- Balantiophorus lemnae Lepsi 1927
- Balantiophorus mucicola Penard 1922
- Cepedella hepatica Poyarkoff 1909
- Cepedietta fibrillata Kay 1942
- Cepedietta gigantea Maupas 1879
- Cepedietta plethodonis Lipscomb in Puytorac 1963
- Cephalotrichium tonsuratum Meunier 1910
- Ceratochona cimex Jankowski 1973
- Ceratochona scandens Jankowski 1973
- Cercaria turbo Müller 1786
- Cercaria hirta Müller 1786
- Certesia quadrinucleata Fabre-Domergue 1885
- Cerona pustulata Perty 1852
- Chaenea binucleata Wenzel 1953
- Chaenea clavata Grandori & Grandori 1934
- Chaenea crassa Maskell 1887
- Chaenea elongata Kahl 1926
- Chaenea gigas Kahl 1933
- Chaenea humicola Gellert 1957
- Chaenea limicola Lauterborn 1901
- Chaenea psammophila Dragesco 1960
- Chaenea pontica Lepsi 1926
- Chaenea minor Kahl 1926
- Chaenea nigricans Kahl 1933
- Chaenea sapropelica Kahl 1930
- Chaenea similis Zacharias 1893
- Chaenea robusta Kahl 1930
- Chaenea simulans Kahl 1930
- Chaenea tessealta Kahl 1933
- Chaenea teres Dujardin 1841
- Chaenea stricta Dujardin 1841
- Chaenea torrenticola Foissner 1984
- Chaenea tokkuri Shibuya ?
- Chaenea vorax Quennerstedt 1867
- Chaetospira anguifrons Dumas 1937
- Chaetospira cylindrica Bolton 1878
- Chaetospira maritima Wright 1862
- Chaetospira mucicola Lachmann 1856
- Chilodina silesiaca Sramek-Husek 1957
- Chilodochona aranei Jankowski 1973
- Chilodochona carcini Jankowski 1973
- Chilodon aureus Ehrenberg 1833
- Chilodochona microchilus Wallengren 1895
- Chilodochona palinuri Jankowski 1973
- Chilodon auricula Gourret & Roeser 1887
- Chilodon calkinsi Kahl 1928
- Chilodon capucina Penard 1922
- Chilodon complanatus Gourret & Roeser 1886
- Chilodon crebricostata Möbius 1888
- Chilodon cyprini Moroff 1902
- Calpionella parvelliptica Nagy 1986
- Calpionellopsis acutoblonga Nagy 1986
- Calpionellopsis breviclaroblonga Nagy 1986
- Calpionellopsis brevisimplex Nagy 1986
- Calpionellopsis claroblonga Nagy 1986
- Calpionellopsis conoblonga Nagy 1986
- Calpionellopsis humiloblonga Nagy 1986