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Euglenophyceae: Euglenales
Mastigophora: Euglenida

 Euglena gigas
Drezepolski
= Euglena helicoidea

Euglena gigas Species: 198-360 μm long, 20-40 μm wide; long cylindrical, somewhat flattened and slightly-twisted; anterior end rounded, posterior end pointed; numerous discoid chloroplasts; many rod-shaped paramylon (paramylum) bodies; no pyrenoids; nucleus big, cylindrical, lying in the center; stigma large (Zakrys, 1986).

Euglena gigas Drezepolski, cell body μm long, μm wide, L/W=, x 640, Nogyo Fureai park (Agricultural friendship park), Ichinodai, Toride city, Ibaraki Pref., Japan, April 28, 2008 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400
Euglena gigas Euglena gigas Euglena gigas Euglena gigas Euglena gigas Euglena gigas Euglena gigas

Images of collecting locality: Nogyo Fureai park (Agricultural friendship park), Ichinodai, Toride city, Ibaraki Pref., Japan, April 28, 2008 by Y. Tsukii

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