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: 30-60 μm long, Spines around rim of collar, also on rear 1/4 of lorica, fresh water (How to know the protozoa, 1979).
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50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
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