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Euglenophyceae: Euglenales
Mastigophora: Euglenida: Euglenina

Euglena acus
Ehrenberg, 1830

Euglena acus Species: 50-175 μm long, 8-18 μm wide; body long spindle or cylindre, with a sharply pointed posterior end; numerous discoid chloroplasts; several paramylon (paramylum) bodies; nucleus central; stigma distinct; flagellum short, about one-fourth the body length (Kudo, 1966).
Similar species -->> Cyclidiopsis; E. limnophila;

Euglena acus Ehrenberg 1830, cell body 114 μm long, 12 μm wide, L/W=, x 640, Watarase-yusuichi (Watarase Wetland), Fujioka town, Tochigi Pref., Japan, March 30, 2005 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Euglena acus Euglena acus Euglena acus

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