Species (15.149)
- Paracineta crenata
- Trichoda bulla
- Engelmanniella halseyi
- Paradileptus canellai Dragesco 1966
- Pantotrichum lagenella
- Bryophrya bavariensis Kahl 1931
- Askenasia humilis
- Kolpoda striata Müller
- Aspidisca andrewii
- Aspidisca caspica
- Kolpoda triquetra Müller 1786
- Aspidisca eocenica
- Aspidisca fieldi
- Aspidisca maxima
- Thylacidium typicum Gellert
- Aspidisca nana
- Aspidisca pelvis
- Aspidisca sedigitata
- Aspidisca steini ssp. steini
- Aspidisca plana
- Aspidisca tetracirrata
- Mantoscyphidia midae Botes, Basson & Van Aas 2001
- Naxella minuta Dragesco & Dragesco-Kerneis 1986
- Bursaridium schewiakowi Lauterborn 1894
- Aristerostoma minuta
- Bryometopus pseudochylodon
- Arcuospathidium cultriforme Kahl 1930 ssp. lionotiforme
- Astrostoma sp.
- Astylozoon amphoriforme
- Astylozoon piriforme
- Astylozoon vagans Stiller 1939
- Atopospira galeata
- Akidodes henleae Lom 1959
- Akidodes symmetricus Lom 1959
- Alexandria arcuata
- Alexandria affinis
- Alexandrina karagjorgjevici
- Alexandria heterolobata
- Alexandrina möbiusi
- Almophrya mediovacuolata
- Alinostoma plurivacuolata Deroux & Dragesco 1968
- Alloiozona trizona
- Biggariella nudum
- Biggaria caryoselaginelloides
- Onychodromus grandis Szabo 1992 ssp. simplex
- Blepharisma clarissima Kahl 1928
- Blepharocorys hydrochoeri
- Blepharosphaera ellipsoidalis
- Baenodinium remigans
- Baeonidium remigens
- Baikalaster pelagicus Jankowski 1986
- Baikalocoleps quadratus Obolkina 1995
- Baikalophrya gammari
- Bakuella muensterlandii
- Bakuella salinarum
- Onychaspis steini ssp. steini
- Balanophrya sphaerica
- Balanophrya mammilata
- Balantidium suis
- Balantidium gyrans
- Balantiophorus bursarias
- Balantiophorus elongata Schewiakoff 1892
- Balladina elongata
- Balladina fusiformis
- Balladina parvula
- Balladinopsis sphaericus Vuxanovici 1963
- Balladina viridis
- Balladyna euplotes Dragesco 1960
- Blepharisma clarissimum Kahl ssp. arenicola
- Blepharisma lateritia ssp. minima
- Blepharisma melana Borror 1963
- Blepharisma multinucleata Dragesco 1960
- Blepharisma ovata
- Blepharisma vitraeum
- Blepharocorys bovis
- Blepharisma salinarium Florentin 1899
- Blepharocorys cardio-nucleata
- Paramecium pentaurelia
- Bignotella batiformis Keij 1969
- Bignotella guttiformis
- Bignotella elongata
- Plagiotricha camelus
- Bignotella polygona
- Ephelota apiculosa
- Ephelota gemmipara
- Ephelota coronata
- Ephelota trold
- Epiclintes ambigua
- Epicharocotyle kyburzi Kozloff 1965
- Epiclintes retractilis
- Epiclintes caudatus Lackey 1961
- Epiclintes radiosa
- Epiclintes vermis Gruber 1888
- Epicranella primsatica
- Epiplocylis atlantica
- Epiplocylis brandti
- Epiplocylis blanda
- Epiplocylis calyx
- Epiplocylis bruhni
- Epiplocylis calyx ssp. labiosa