Genus: Without gelatinous sheath; filaments consist of a few cells; cell body cylindrical in shape, both ends rounded
(Illustrations of The Japanese Fresh-water Algae, 1977).
Species:
Stichococcus ?,
cell body 7-11 μm long, 3 μm wide,
x 640, a pond near Asami-numa (Azami-numa), Iwajuku, Kasakake town, Gunma Pref., Japan, October 2001 by Y. Tsukii 31 μm
63 μm
94 μm; x 640