Species (15.149)
- Oxytricha ferruginea Stein 1859
- Cadosinopsis andrusovi Scheiber 1967
- Calpionellites murgeanui
- Calpionelloides irregularis Colom 1984
- Campbelliella milesi ssp. elongata
- Carchesium polypinum ssp. asellicola
- Euplotopsis muscorum
- Oxytricha muscorum Kahl 1932
- Zoothamnium minimum ssp. minimum
- Euplotopsis bisulcatus Kahl 1932
- Aspidisca heterotrichus
- Paraholosticha herbicola
- Oxytricha histrio Müller 1786
- Paraurostyla hologama
- Holosticha holomilnei
- Peritromus hydrarum Chardez 1983
- Klonstricha horrida ssp. bivacuolata
- Euplotes mediterraneus
- Pleurotricha lanceolata
- Oxytricha aeruginosa Wrzesniowski 1870
- Euplotoides aediculatus
- Acineta complanta
- Acineta constricta
- Acineta craterellus
- Acineta buckei
- Euplotes longicirratus
- Euplotidium itoi Ito 1958
- Euplotes longiremis
- Oxytricha ludibunda Stokes 1891
- Himantopus ludio Müller 1773
- Acineta euchaetae
- Ratulus lynceus
- Hypotrichidium africanum Jankowski 1979
- Enchelys caudata
- Acineta infundibuliformis
- Histrio macrostoma Gellert & Tamas 1958
- Holosticha macronucleata
- Urostyla lynchi Horvath 1939
- Acineta ornata
- Laurentiella macrostoma
- Acineta multitentaculata
- Acineta operata
- Oxytricha macrostyla Sterki 1878
- Acineta paratuberosa
- Acineta rotunda
- Acineta periacinetoides
- Kerona lnycaster
- Acineta swarczewskyi
- Holosticha magnificus Kahl 1932
- Acineta tuba
- Holosticha manca Kahl 1932
- Acineta tuberosa ssp. fraipontii
- Acineta tuberosa Pallas 1766
- Acinetopsis campanuliformis Collin 1909
- Euplotes margherensis
- Oxytricha longicirrata Kahl 1932
- Diophrys marina
- Aegyria cristata
- Aduncuperistomatus tejerai Amaro & Sena 1967
- Aegyria reesi
- Aegyria compressa
- Bakuella krezkampii
- Aegyria marioni
- Euplotes kurekchayi
- Hypotrichidium labiatum
- Pseudokeronopsis decolor Wallengren 1900
- Euplotoides daidaleos
- Oxytricha echinata Claparède & Lachmann 1859
- Urostrongylum deflectum
- Moneuplotes cristatus
- Kerona depauperata Bory 1824
- Oxytricha discifera Kahl 1932
- Holosticha discocephalus Kahl 1932
- Euplotoides dogieli
- Euplotes dogieli
- Crossothigma dubium
- Holosticha dubium
- Paramecium dubium
- Stylonychia dupla
- Amphorella torulata
- Paruroleptus dubium
- Amphorella tetragona
- Amphorella oxyura
- Amphorella gracilis
- Amphorella intumescens
- Amphista acuta
- Amphorella trachelium
- Amphorella pachytoecus
- Amphorella pyramidata
- Himantopus corona Müller 1786
- Amphorella subulata ssp. edentata
- Anacharon gracilis Ito & Imai 2000
- Mesotricha echinata
- Anarma brevis
- Ancistrocoma pelseneeri ssp. pholadis
- Ancistrina ovata
- Stylonichia corniculata Dumas 1929
- Trichoda delphis
- Anglasia magdalenae Delphy 1936
- Keronopsis clavata Vuxanovici 1963