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, 17-26 μm long, 13-22 μm wide;
collar absent or short cylindrical; surface granulated
(Illustrations of The Japanese Fresh-water Algae, 1977).
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