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Chlorophyceae: Chlorococcales: Dictyosphaeriaceae (Oocystaceae)

Westella botryoides
(W. West) De Wildeman

Westella Genus: Colony of 16 or 32 cells, planktonic; cell body spherical; four daughter cells connected each other by the remnants of mother cell wall; a single chloroplast cup-shaped with a pyrenoid (Guide book to the "Photomicrographs of the Freshwater Algae", 1998).
Similar genus --> Dictyosphaerium

Westella (right) & ??? (left), cell body spherical, 9-11 μm in diam., x 400, Japan, 1998 by Y. Tsukii

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