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Raphidophyceae: Raphidomonadales
Raphidomonadida

 Vacuolaria virescens
Cienkowski

Vacuolaria Genus: Unicellular; planktonic; cell body flat, ovoidal; two flagella emerging from anterior end, one extends anteriorly and another posteriorly; a reservoir and a contractile vacuole present, trichocysts absent; many chloroplasts ellipsoidal in shape, light green in color (Guide book to the "Photomicrographs of the Freshwater Algae", 1998).
Species:
Similar genus ->> Gonyostomum;

Vacuolaria virescens Cienkowski, cell body 42 μm long, 38 μm wide, L/W=, x 640, Jodo-daira (bog or marsh) , Azuma mountain, Fukushima city, Fukushima Pref., Japan, September 3, 2006 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Vacuolaria Vacuolaria
Cell body 50 μm long, 33 μm wide, L/W=, chloroplasts small disc-shaped, 3 μm long, 1-2 μm wide, L/W=, x 640
Vacuolaria Vacuolaria
Cell body 53 μm long, 45 μm wide, L/W=, x 640
Vacuolaria Vacuolaria Vacuolaria

Images of collecting locality: No. 2, Jodo-daira (bog or marsh) , Azuma mountain, Fukushima city, Fukushima Pref., Japan, September 3, 2006 by Y. Tsukii

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