image_list image_listE

Raphidophyceae: Raphidomonadales

Vacuolaria virescens

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 38 μm long, 34 μm wide, L/W=, x 640, standing water, near Akaiyaji-shoya-shokubutu-gunraku (Akai wetland), Aizuwakamatsu city, Fukushima Pref., Japan, May 4, 2005 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Vacuolaria Vacuolaria Vacuolaria Vacuolaria

Please click on images for viewing enlarged.
Copyright Protist Information Server