Genus: Elongate, ovoid; anterior apex often curves over the peristome; non contractile (Carey, 1992).
In front of cytostome a two-layered undulating membrane on right edge; contractile vacuole and
cytopyge terminal; rose-colored; many species (Kudo, 1966).
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
