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Xanthophyceae: Mischococcales: Ophiocytiaceae

 Ophiocytium bicuspidatum
(Borge) Lemmermann

Ophiocytium bicuspidatum Genus: Unicellular; planktonic; cell body elongated cylindroid, curved or twisted; both ends rounded, with spiny projections; cell wall not separated into two parts (compare to Centritractus); several chloroplasts plate-like, without pyrenoids (Guide book to the "Photomicrographs of the Freshwater Algae", 1998).
Species:

Ophiocytium bicuspidatum Lemmermann ?, cell body 65 μm long, 6 μm wide, L/W=10.8, x 640, Suiren-numa (pond), near Hakkoda mountain, Towada city (formerly Towadako town), Aomori Pref., Japan, July 17, 2005 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Ophiocytium bicuspidatum Ophiocytium bicuspidatum Ophiocytium bicuspidatum

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