Espécies (15.149)
- Cyttarocylis brandti
- Cyttarocylis cymatica
- Cyttarocylis cylindrica
- Cyttarocylis denticulata ssp. edentata
- Cyttarocylis dicymatica
- Cyttarocylis dilatata
- Cyttarocylis ehrenbergii ssp. ehrenbergii
- Cyttarocylis favata
- Cyttarocylis edentata
- Cyttarocylis helix
- Cyttarocylis inflexa
- Cyttarocylis norvegica
- Cyttarocylis lanceolata
- Cyttarocylis obscura
- Cyttarocylis ornata
- Cyttarocylis scalarius
- Cyttarocylis pseudannulata
- Cyttarocylis scandens
- Cymatocylis waldtrauti
- Cynetochilum margaritaceum
- Cypridium crassipes
- Cypridium lanceolatum
- Cyttarocylis denticulata ssp. denticulata
- Cyttarocylis serrata
- Cyttarocylis sipho
- Cyclotricha citrea
- Cyclotrichium brunneum
- Cyclotrichium inflatum
- Cyclotrichium nordicum
- Euplotes bistylus
- Nassula conica
- Nassula depressa
- Nassula derouxi
- Nassula depressus
- Nassula halophila
- Nassula elegans Ehrenberg 1833 ssp. elegans
- Nassula euglena
- Nassula leucas
- Nassula microstomata
- Nassula ornatus
- Nassula plantiformis
- Nassula pratensis Czapik & Jordan
- Nassula rubens
- Nassula pluvialis
- Protocyclidium muscicola Kahl 1931
- Nassula vesiculosa
- Nassula tricirrata Gelei 1932 ssp. tricirrata
- Nassula viridis
- Nasulla vernalis
- Mycodinium facatum
- Metacineta mystacea
- Mycterothrix galeata
- Mycterothrix minima Gelei 1950
- Mycterothrix ovata Gelei 1950
- Mycterothrix taumotuensis
- Mycterothrix grisea Gelei 1950
- Mycterothrix tuamotensis
- Myoschiston carcini
- Myoschiston balanorum
- Myoschiston neomysidis
- Myoschiston simile
- Myoschiston centropagidarum
- Myoschiston cypridicola
- Mystichona nudum
- Volvox oniscus
- Brachyosoma brachypoda Stokes 1885 ssp. brachypoda
- Tetrahymena mobilis
- Holosticha brevis Kahl 1932
- Nassula aureola
- Nassula bivacuolata Sramek-Husek 1946
- Nassula tumida ssp. tumida
- Epistylis lacustris ssp. rugosa
- Nidula multicapitata
- Tetrahymena setosa Schewiakoff
- Balladina similis
- Nyctitherus velox
- Nyctotherus actiniarum
- Nyctotherus lumbrici
- Nyctotherus acuminatus
- Nyctotherus györyanus
- Nyctotherus gyoeryanus
- Nüchterleinella corneliae
- Obertrumia xantha Dragesco & Dragesco-Kernéis 1991
- Epalxella spinosa
- Nolaclusilis hudsonicus
- Nordicoma nudum
- Colpoda colpodiopsis Beier 1939
- Carchesium limneticum Svec 1897
- Pinacocoleps incurvus
- Urotricha cyrtonucleata Martin & Montagnes 1993
- Rhabdostyla cyclopicola
- Philasterella nudum
- Philasterides armata Kahl 1926
- Vorticella acinosa ssp. acinosa
- Cyclidium dilectatissimum
- Phialina dodiolum
- Phialina doliolum Schmarda 1854
- Vorticella compacta ssp. compacta
- Vorticella convallaria ssp. convallaria
- Telotrochidium henneguyi sensu Davidson & Finley 1972