Species (15.149)
- Cardiastomatella vermiformis Kahl 1928
- Cardiastomatella minuta Dragesco 1965
- Askensia volvox Claparède & Lachmann 1859
- Bundleia postciliata Strelkow 1939
- Bursaria caudata Dumas 1929
- Buchnerella pheretimae Puytorac & Rakotoarivelo 1965
- Bundleia postciliata Bundle 1895
- Gonostomum parvum Lepsi 1947
- Histriculus polycirratus Agamliev 1978
- Blepharostoma glaucoma Schewiakoff 1892
- Cyrtohymena fenestrata Lepsi 1957
- Blepharostoma glaucoma Schewiakoff 1893
- Histriculus minimus
- Bicoscoeca phiala Stokes 1894
- Chilodonella dentata Dujardin 1841
- Balantidium caviae Cunha 1914
- Balanitizoon gyrans Stokes 1887
- Bakuella marina Jankowski 1979
- Bakuella marina Agamaliev & Alekperov 1976
- Aspidiscopsis bengalensis Naidu 1965
- Baeonidium remigans Perty 1852
- Aspidiscopsis bengalensis Ghosh 1921
- Baeonidium remigans Perty 1849
- Histriculus tricirratus Buitkamp 1977
- Histriculus acuminatus Maskell 1886
- Aselliacineta rossica Jankowski 1981
- Bursaria loxodes Perty 1852
- Cyclidium glaucoma Müller 1773 ssp. glaucoma
- Oxytricha lundi Dragesco 1970
- Histriculus sphagni
- Bursaria virens Perty 1852
- Holosticha setigera
- Gastrostyla parasteinii Small & Lynn 1985
- Amphileptus gutta Kalmus 1929
- Anigsteinia clarissima Isquith 1968
- Allotricha antarctica Berger 1999
- Colpoda infuscata Perty 1849
- Ancistrum arcopagiae
- Ancistrum dosiniae
- Ancistrum hydrobiae
- Ancistrum nucellae
- Anemadesma minuta
- Amphileptus ovum
- Amphileptus parafusidens Song & Wilbert 1989
- Amphileptus moniliger
- Amphileptus sphagni
- Amphileptus proceroformis Song & Wilbert
- Amphileptus sphagnis
- Amphileptus strictus
- Amphileptus teres
- Amphileptus tracheloides
- Amphileptus vorax
- Amphileptus virids
- Amphorellopsis turbinea
- Amphileptus acutus
- Amphileptus affinis Song & Wilbert 1989
- Amphileptus agilis Penard 1922
- Amphileptus anas
- Amphileptus barbatulus
- Amphileptus ensiformis
- Amphileptus incurvata
- Amphileptus fusiformis
- Amallocystis fasciatus
- Amphisia diademata Rees 1884
- Amphisia kessleri
- Amphisia gibba
- Amphisia marioni
- Amphisia pernix
- Amphisia piscis
- Amphisia velox
- Amphisiella oscensis
- Amphisiella perisincirra
- Amphista crassa
- Amphista diademata
- Amphorella ampla
- Amphorella borealis
- Amphorella pallida
- Amphorella steenstrupi
- Amphorellina lanceolata
- Amphorella subulata Daday 1887 ssp. subulata
- Ancistrocoma myae
- Ancistrocoma pelseneeri Chatton & Lwoff 1926 ssp. pelseneeri
- Amphileptus carchesi
- Amphileptus claparedeii Stein 1867
- Amphileptus claparedi Stein 1867
- Amphileptus falx
- Amphileptus litonotiformis
- Amphileptus lamella
- Amphileptus fascicola
- Amphileptus meiianus Song & Wilbert 1989
- Amphileptus moliger
- Choanophrya infundibulifera Hartog 1881
- Choanophrya subsessilis
- Chotecella leiotheca
- Cerona mytilus
- Cerona lanceolata
- Cerona histrio
- Cerona silurus
- Chaenea tesselata Kahl 1935
- Chaenia crassa