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Chlorophyceae: Chlorococcales: Oocystaceae

Nephrocytium lunatum
W. West

Nephrocytium Genus: Colony of 4, 8 or 16 cells, within a gelatinous sheath, which is spherical or ellipsoidal in shape; cell body broad crescent in shape, both ends rounded; a single chloroplast plate-like in shape, with a pyrenoid (Guide book to the "Photomicrographs of the Freshwater Algae", 1998).
Species: Colonies of 2-4 cells, embedded within a gelatinous sheath; cell body crescent in shape, 10-16 μm long, 4-8 μm wide; a single chloroplast plate-like, with a pyrenoid (Illustrations of The Japanese Fresh-water Algae, 1977).
Similar genus -->> Oocystis; Selenodictyum;

Nephrocytium lunatum, cell body crescent in shape, both ends rounded, 22 μm long, 7 μm wide, x 640, Nishi-jo-numa (pond), Hasuda city, Saitama Pref., Japan, May 2002 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Tetrallantos Tetrallantos

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