Species (84)
- Chilomonas paramecium Ehrenberg ()
- Paramecium jankowskii Dragesco 1972
- Paramecium ougandae Dragesco 1972
- Paramecium caudatus Stokes 1886
- Paramecium abceps
- Paramecium africanum Dragesco 1970
- Paramecium biaurelia
- Paramecium coli
- Paramecium histrio Müller 1785
- Paramecium kolpoda Losana 1829
- Paramecium multimicronucleata
- Paramecium ovata
- Paramecium otostoma
- Paramecium planoconvexum
- Paramecium polycaryum
- Paramecium polytrichum Schmarda 1854
- Paramecium pseudotrichium Dragesco 1970
- Paramecium silesiacum
- Paramecium stomioptycha
- Paramecium woodsuffi Wenrich 1928
- Paramecium versutum ssp. versutum
- Paramecium pentaurelia
- Paramecium duboscqui
- Paramecium laudatum
- Paramecium tetraurelia
- Paramecium dubium
- Paramecium ugandae Dragesco 1972
- Paramecium aureolum Perty 1852
- Paramecium bursaria Ehrenberg 1831
- Paramecium biumbonatum Dumas 1929
- Paramecium caudatum Ehrenberg 1833
- Paramecium calkinsi Woodruff 1921
- Paramecium chilodonides Baumeister in Kahl 1931
- Paramecium chrysalis Müller 1786
- Paramecium chlorelligerum Kahl 1935
- Paramecium colpoda Ehrenberg 1831
- Paramecium compressum Ehrenberg 1838
- Paramecium cordiformis Dumas 1929
- Paramecium cucullio Quennerstedt 1867
- Paramecium ellipsoides Dumas 1929
- Paramecium elongatum Dumas 1930
- Paramecium cucumula Dumas 1929
- Paramecium ficarium Kahl 1928
- Paramecium flavum Fromentel 1876
- Paramecium glaucum Claparède & Lachmann 1859
- Paramecium marginatum Dumas 1930
- Paramecium leucas Perty 1852
- Paramecium griseolum Perty 1852
- Paramecium inversum Claparède & Lachmann 1859
- Paramecium milium Müller 1773
- Paramecium nigrum Bürger 1908
- Paramecium nephridiatum Gelei 1925
- Paramecium orbiculare Dumas 1929
- Paramecium ovale Claparède & Lachmann 1859
- Paramecium ovatum Ehrenberg 1830
- Paramecium patella Dumas 1930
- Paramecium polycarium Woodruff 1923
- Paramecium regulare Fromentel 1876
- Paramecium roseum Fromentel 1876
- Paramecium rostratum Dumas 1930
- Paramecium sinaiticum Ehrenberg 1831
- Paramecium sonneborni Aufderheide, Daggett & Nerad 1983
- Paramecium scutellinum Dumas 1929
- Paramecium subovatum Fromentel 1876
- Paramecium sinuosum Dumas 1929
- Paramecium subradiatum Dumas 1929
- Paramecium trichium Stokes 1885
- Paramecium traunsteineri Baumeister in Kahl 1931
- Paramecium viridis Dumas 1930
- Paramecium versutum Perty 1852 ssp. alpina
- Paramecium woodruffi Wenrich 1928
- Paramecium aurelia Müller 1773
- Paramecium acutum Dumas 1929
- Paramecium marinum Kent 1881
- Paramecium microstomum Claparède & Lachmann 1859
- Paramecium multimicronucleatum Powers & Mittchell 1910
- Paramecium nucleus Schrank 1803
- Paramecium putrinum Claparède & Lachmann 1859
- Paramecium pyriforme Gourret & Roeser 1886
- Paramecium aurelia-Komplex
- Paramecium jenningsi
- Paramecium triassicum Foissner & Schönborn in § 1999
- Paramecium sexaurelia
- Paramecium novaurelia