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Euglenophyceae: Heteronematales
Euglenida: Heteronematina

Heteronema acus
Dujardin

Heteronema acus 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 acus (or Distigma ?), cell body 76 μm long, 8 μm wide, L/W=9.5, anterior flagellum 35 μm long, x 640, Akebono marsh (or bog), Nidanuma (Nitanuma), Tsuchiyu-onsen, Fukushima city, Fukushima Pref., Japan, October 28, 2005 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Heteronema Heteronema Heteronema


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