|  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). |