Genus:
Similar to Epistylis; but solitary with a non-contractile stalk; numerous species (Kudo, 1966).
Species:
Cell body 22 μm long (Kahl, 1930).
Similar genus --> > Rhabdostyla Opisthostyla annulata Stokes 1886 (or Rhabdostyla sp. ?),
cell body 34 μm long, 16 μm wide,
x 640, Toneri Park, Adachi-ku, Tokyo, Japan, December 2001 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
??