Genus:
Epicone (or epitheca) consists of 10-16 thecal plates;
hypocone (or hypotheca) of 6-7 thecal plates
(Illustrations of The Japanese Fresh-water Algae, 1977).
Species:
Glenodinium dinobryonis (Woloszynska) Lidemann 1925 ?,
cell body 60 μm long, 60 μm wide,
x 640, Midori-no-ike (pond), Togakushi Forest Botanical Garden, Togakushi highland, Shinano town, Nagano Pref., Japan, June 12, 2005 by Y. Tsukii
31 μm
63 μm
94 μm; x 640