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Raphidophyceae: Raphidomonadales
Raphidomonadida

 Vacuolaria sp.
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 sp. ?, cell body 43 μm long, 31 μm wide, L/W=1.4, anterior flagellum 30 μm long, x 640, Kannon-numa Forest Park (pond), Shimogo town, Fukushima Pref., Japan, September 10, 2005, collected by Eizaburo Tsukii, photo by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Vacuolaria Vacuolaria Vacuolaria

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