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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, cell body 141 μm long, 12 μm wide, x 640, Mitsumata-numa biotope, at the border of Kawagoe city, Kawajima town and Ageo city, Saitama Pref., Japan, March 21, 2005 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Euglena acus Euglena acus

Euglena acus, cell body 135 μm long, 9.5 μm wide, x 640, Mitsumata-numa biotope, at the border of Kawagoe city, Kawajima town and Ageo city, Saitama Pref., Japan, March 21, 2005 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Euglena acus Euglena acus


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