Genus: Free-swimming; rigid oval; ventral surface convex; dorsal surface with a longitudinal groove;
flagella anterior; one long, directed anteriorly; the other shorter and trailing; fresh water
(Kudo, 1966).
Species:
Notosolenus sp. ?,
cell body 10 μm long, 7 μm wide, a single flagellum 17 μm long,
x 640, Shimo-no-koike (small pond), Shiga highland, Yamanouchi town, Nagano Pref., Japan, September 26, 2004 by Y. Tsukii
31 μm
63 μm
94 μm; x 640