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:
|
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
Heteronema , x 400, x 640, December 1998 by Y. Tsukii
Heteronema acus (Ehrenberg) Stein: Cylindrical, 40-50 μm long, 10-20 μm wide; gliding locomotion (Illustrated Guide, 1985).
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