Species:
Cell body fusiform (spindle-shaped), 62-95 μm long, 18-24 μm wide,
euglenoid movement active; chloroplasts saucer-shaped, slightly lobed (or wavy ?), 8-14 in number,
a prenoid covered with paramylon sheath located at the center;
a flagellum nearly equal to or slightly longer than the cell body; nucleus spherical 8-10 μm in diam.;
stigma 5 μm; many small granules present within cytoplasm
(An Illustrated Guide to Freshwater Zooplankton in Japan, 2000).
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