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, 38-45 μm long, 30-36 μm wide
(An Illustrated Guide to Freshwater Zooplankton in Japan, 2000).
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