Hemidinium sp.
F. Stein 1878 (John et al. eds. 2002)
Order: Cell body without theca
(Illustrations of The Japanese Fresh-water Algae, 1977).
Family:
Genus:
Hemidinium sp.,
cell body μm long, μm wide,
x 640, Senjo-ga-hara (marsh), Nikko city, Tochigi Pref., Japan, September 2003 by Y. Tsukii
31 μm
63 μm
94 μm; x 640