Genus: Euglenas in a close fitting lorica; a single long flagellum extends through small opening;
lorica with or without short collar; yellow to brown (How to know the protozoa, 1979).
Lorica often possesses numerous spines, composed of ferric hydroxide impregnated with brown
manganic compound (Kudo, 1966).
Species: Lorica broad ellipsoidal, 16-22 μm long, 12-18 μm wide,
surface smooth, no collar
(An Illustrated Guide to Freshwater Zooplankton in Japan, 2000).
Lorica 16-32 μm long, 10-18 μm wide,
(Illustrations of The Japanese Fresh-water Algae, 1977).
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