Species:
Cell body long spindle-shaped, 60-78 μm long, 10-12 μm wide,
anterior attenuated, posterior tapered into a caudal projection; euglenoid movement inactive;
many chloroplasts small disc-shaped without pyrenoids; locomotive flagellum about 1/2 body length;
nucleus ellipsoidal, 8 x 5 μm in diam.; two types of paramylon bodies, one small bar-shaped,
another 2 ring-shaped ones at both sides of the nucleus
(An Illustrated Guide to Freshwater Zooplankton in Japan, 2000).
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50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
