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). |
31 μm
63 μm
94 μm; x 640
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
31 μm
63 μm
94 μm; x 640
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
31 μm
63 μm
94 μm; x 640
