Genus: Similar to Epistylis;
but solitary with a non-contractile stalk; numerous species (Kudo, 1966).
Attached to Cyclops, Cypris, other copepods in fresh water (How to know the protozoa, 1979).
Species:
Cell body 28 μm long (Kahl, 1930).
Rhabdostyla ovum,
cell body about 50 μm long, 24 μm wide,
x 640, Yakusho-ji-ike Park, Kosugi town, Toyama Pref., Japan, September 2002, by Y. Tsukii
31 μm
63 μm
94 μm; x 640