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Xanthophyceae: Mischococcales: Pleurochloridaceae

 Tetraedriella spinigera
Skuja

Tetraedriella Genus: Unicellular; planktonic; cell body tetrahedron in shape; each corner drawn out to form a projection; many chloroplasts disc-shaped, without pyrenoids (Guide book to the "Photomicrographs of the Freshwater Algae", 1998).
Species:
Similar genus -->> Tetraplektron; Tetraedron;

Tetraedriella spinigera, cell body 24 μm long, 24 μm wide, L/W=1.0, x 640, Nanbata castle park, Fujimi city, Saitama Pref., Japan, September 18, 2005 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Tetraedriella Tetraedriella Tetraedriella

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