Genus: Ovoid, firm; dorsal side convex, ventral side flattened; dorsal surface ridged;
adoral zone reduced or rudimentary; macronucleus U-shaped or in two rounded parts (Kudo, 1966).
Species:
Aspidisca sp.,
cell body μm long, μm wide,
x 640, Tama river, near Futago-tamagawa railway station, Setagaya ku, Tokyo, Japan, April 6, 2004 by Y. Tsukii 31 μm
63 μm
94 μm; x 640
Genus: Ovoid, firm; dorsal side convex, ventral side flattened; dorsal surface ridged;
adoral zone reduced or rudimentary; macronucleus U-shaped or in two rounded parts (Kudo, 1966).
31 μm
