Genus (Claparède and Lachmann, 1858):
Ovoid or cylindrical; apical cytopharynx; posterior bald; caudal cilia present;
contractile vacuole posterior (Carey, 1992).
Species:
Urotricha platystoma Stokes 1886 ?,
cell body μm long, μm wide,
x 640, Taka-iwa Park, Kurobane town, Tochigi Pref., Japan, March 2003 by Y. Tsukii
31 μm
63 μm
94 μm; x 640