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).
Images of collecting locality:
Fujimi-hotaru-shinsui Park, Okegawa city, Saitama Pref., Japan, March 21, 2006 by Y. Tsukii