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: (Illustrations of The Japanese Fresh-water Algae, 1977).
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Similar species -->> T. pusilla (lorica smooth, 10-16 x 9-16 μm);
T. ovoides
lorica 27 x 17 μm
Ikenokochi marsh
Tsuruga
Fukui, 2004
T. ovoides
lorica 22 x 17.5 μm
near Akai wetland
Aizuwakamatsu
Fukushima, 2005