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Oligohymenophorea (formerly Nassophorea): Peniculida: Parameciidae

Paramecium aurelia
(Ehrenberg, 1838) Dujardin, 1841

Paramecium aurelia octaurelia Genus: Cigar- or foot-shaped; a single macronucleus and 1 to several vesicular or compact microuclei (Kudo, 1966).
Species: 120-180 μm long; two vesicular micronuclei; two contractile vacuoles; posterior end more rounded than P. caudatum (Kudo, 1966). Ovoid or elongate in shape; both ends rounded; 80-170 μm long; an ovoid macronucleus and two micronuclei; two contractile vacuoles; caudal cilia present (Carey, 1992).

Paramecium octaurelia (formerly P. aurelia syngen 8), cell body 119-125 μm long, μm wide, x 400, Japan 199? by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400
Paramecium aurelia Paramecium aurelia

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