Genus:
Cell body cylindroid or spindle in shape; spiral ribbon-like chloroplasts or laminae of
the chloroplast arranged spirally around central rod
(Illustrations of The Japanese Fresh-water Algae, 1977).
Species :
Vegetative cells large, cigar-shaped,
60-334 μm long,
10-30.4 μm diam.,
spiral band-form chloroplasts
(Illustrations of The Japanese Fresh-water Algae, 1977).
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