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Xanthophyceae: Mischococcales: Pleurochloridaceae

 Tetraedriella sp.

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 sp. (or Tetraedron trigonum Chlorophyta ?), cell body 25 μm wide, x 640, Kijioka Castle Ruin, Kodama town, Saitama Pref., Japan, June 2003 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Tetraedriella Tetraedriella Tetraedriella

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