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Euglenophyceae: Heteronematales
Euglenida: Heteronematina

 Heteronema sp.
Dujardin

Heteronema Genus: Like Peranema, but second flagellum free, trailing, 1/2 body length; plastic (How to know the protozoa, 1979). Both flagella emerge from canal; unequal in length and thickness; longer thicker one directed anteriorly during swimming; shorter trailing posteriorly, lying free from cell; colourless; phagotrophic; ingestion organelle composed of 2 rods; no eyespot; cell body plastic, solitary, elongated, tapering, not flattened; fresh and salt water (Illustrated Guide, 1985).
Species:
Similar Genus ->> Peranema; Distigma

Heteronema Dujardin, cell body μm long, μm wide, x 640, (lat. 37° 7' 20" N., long.140° 12' 0" E.) Konpira bridge over Yanta river, Shirakawa city, Fukushima Pref., Japan, August 2003, by Y. Tsukii
scale 50 μm scale 100 μm scale150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640
Heteronema Heteronema Heteronema Heteronema Heteronema

Heteronema acus (Ehrenberg) Stein: Cylindrical, 40-50 μm long, 10-20 μm wide; gliding locomotion (Illustrated Guide, 1985).

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