Order: Cell body without theca (Illustrations of The Japanese Fresh-water Algae, 1977).
Family:
Genus:

->> Description at WPRNO

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Hemidinium sp. 33 x 23 μm Kaga Ishikawa, 2000

Hemidinium sp. μm Senjo-ga-hara Nikko Tochigi, 2003

Hemidinium sp. 23 x 15 μm Kamishiro Hakuba Nagano, 2004

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