Genus: Cigar- or foot-shaped; a single macronucleus and 1 to several vesicular or compact microuclei
(Kudo, 1966).
Species:
Paramecium sp. (very similar to P. caudatum),
cell body 133 μm long, 34 μm wide, anterior end truncated,
with three contractile vacuoles (?; No of C.V. changed to two after changing culture condition),
x 640, Furu-tone river, Kasukabe city, Saitama Pref., Japan, February 15, 2004 by Y. Tsukii
100 μm
200 μm
300 μm; x 200