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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: Cell body ovoidal, slightly compressed, 40-65 μm long, 25-35 μm wide; a nucleus elongated ellipsoidal, located at the center of the cell body; resorvoir and contractile vacuole located anterior end; many disc-shaped chloroplasts light-green, elongated ellipsoidal; many refractile granules at periphery of the cell; pellicle soft; trailing flagellum slightly shorter than the cell body (Illustrations of Japanese fresh-water algae, 1977).
Similar genus ->> Gonyostomum;


Vacuolaria virescens Cienkowski, cell body 31 μm long, 25 μm wide, many refractile granules located at periphery of the cell, x 640, Otto-Numa (pond), Tsuchiura city, Ibaraki Pref., Japan, July 2002 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Vacuolaria

Vacuolaria virescens Cienkowski ?, cell body ellipsoidal, 32 μm long, 29 μm wide, many chloroplasts elongated ellipsoidal, x 640, Otto-Numa (pond), Tsuchiura city, Ibaraki Pref., Japan, July 2002 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Vacuolaria Vacuolaria Vacuolaria Vacuolaria Vacuolaria

Vacuolaria sp. (or Gonyostomum semen Diesing ?), cell body 27 μm long, 22 μm wide, x 640, Otto-Numa (pond), Tsuchiura city, Ibaraki Pref., Japan, July 2002 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Vacuolaria Vacuolaria


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