Species (15.149)
- Latteuria polyfaria Timoshenko & Imai 1997
- Lecanodiscus longa Swarczewsky 1928
- Lecanophrya drosera Kahl 1934
- Lecanophryella paraleptastaci Dovgal 1985
- Legendrea interrupta Penard 1922
- Legendrea pespelicani
- Lembus attenuata Smith 1897
- Entobdella soleae
- Codonella cratera ssp. acuminata
- Codonella cratera ssp. entzi
- Codonella cratera ssp. insubrica
- Litonotus pictus ssp. binucleatus
- Codonella cratera ssp. laevis
- Litosolenus verrucosum
- Hypocoma patellarum
- Hypocomella raabei ssp. roscoffensis
- Hypocomides zyrpaeae
- Calvobakuella terricola nonZR
- Spirostomum filum Ehrenberg 1833
- Spirotontonia sp.
- Phialina vermicularis Müller 1786
- Oxytricha platystoma Ehrenberg 1831
- Oxytricha gibba Müller 1786
- Amphileptus meleagris Müller 1773
- Amphileptus longicollis Ehrenberg 1831
- Acineta mystacina Ehrenberg 1832
- Lionotus fascicola Müller 1773
- Teuthophrys trisulcata Chatton & Beauchamp 1923
- Allantosoma intestinale Gassovsky 1919
- Acineta tuberosa Ehrenberg 1834
- Amphileptiscus shi Song & Bradbury 1998
- Buschiella subantarctica Busch 1948
- Pseudotontinia sp.
- Trochochilodon flavus Deroux 1976
- Trichodoxa genitali Sirgel 1983
- Trypanococcus rotiferoru Stein in Zacharias 1885
- Urocyclo chesapeakensis Small & Lynn 1985
- Uropogon ura Ito & Imai 2000
- Velistoma echinometre Biggar & Wenrich 1932
- Xystonella treforti Daday 1887
- Zonotrichium discoides Meunier 1910
- Parallelostrombidium sp.
- Codonaria cristellula Fol 1884
- Cardiostomatella vermiformis Kahl 1928
- Macrocytopharynxa no TS Li & Wang 2002
- Coelothigma canale Katashima 1952
- Hysterocinetoides sanagae Ngassam 2002
- Conidophrys pilisucto Chatton & Lwoff 1934
- Cryptopharynx setigeru Kahl 1928
- Curimostoma renale Kay 1946
- Codonellopsis orthoceras Haeckel 1873
- Cyathodinium conicum Cunha 1914
- Dilleria sushilii Ray 1932
- Dissothigma saprophilum Kahl 1930
- Echinofolliculina mortenseni Dons 1934
- Enchelydium fusiden Kahl 1930
- Songophrya armata Foissner 2003
- Uronemella filificum Kahl 1931
- Ceratospathula brasiliensis Foissner 2003
- Epiclintes feli Müller 1786
- Favelloides balearicus Colom 1939
- Eudrilophrya complanata Puytorac 1969
- Fungiphrya strobili Foissner 1999
- Gonzeella coloniaris Kufferath 1953
- Holocoma primigenia Chatton & Lwoff 1950
- Horocontus arcuatu Deroux 1976
- Inocardion orbulinarius Lapparent 1918
- Klonostricha horrida Vuxanovici 1962
- Metaptychostomum nucleogigas Ngassam & Grain 1997
- Myriokaryon lieberkuehnii Bütschli 1889
- Popiella oblongata Rehakova 2002
- Parazoothamnium stenoticum Piesik 1975
- Paratrichodina globonuclea Lom 1963
- Parducia orbis Fauré-Fremiet 1950
- Pelagodileptus tracheloides Zacharias 1894
- Pelagovasicola cinctus Voigt 1901
- Jarrellia atramenti Poynton, Whitaker & Heinrich 2001
- Physalophrya spumos Penard 1922
- Protoisotricha agricolaeagresti Kopperi 1935
- Pseudometacylis ornat Balech 1968
- Pseudocinetochilum pulchellu Obolkina 1995
- Pseudomonilicaryon gracile Kahl 1931
- Pseudogemmides globos Kormos 1935
- Pseudoparafolliculina portito Andrews & Nelson 1942
- Spirocytopharynxa no TS Li & Wang 2002
- Pterodiniella microlithovorax Latteur & Dartevelle 1971
- Radiophryoides komareki Lom 1956
- Ichthyophthirius schlotfeldti Yunchis 1997
- Bicornella sola Bugrova 2003
- Rhynchophrya palpans Collin 1909
- Rossielella tintinnubulum Makarieva 1979
- Rovinjella spheromae Matthes 1972
- Rubioxytricha haematoplasma Blatterer & Foissner 1990
- Spiroperistomatus macropharyngeu Amaro & Sena 1967
- Spirophrya subparasitic Chatton & Lwoff 1924
- Stentofollicullina tubicola Hadzi 1938
- Dasytricha dehorityi Cameron et al. 2000
- Polycosta roundi Cameron & O'Donoghue 2003
- Stylophryodendron roscoffense Batisse & Dragesco 1967
- Tachyblaston ephelotensis Martin 1909