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 27 μm long, 21 μm wide, peristome 16 μm wide,
stalk about 18 μm long,
x 640, O-ike waterside park, Kasukabe city, Saitama Pref., Japan, February 15, 2004 by Y. Tsukii
31 μm
63 μm
94 μm; x 640