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Euglenophyceae: Euglenales
Mastigophora: Euglenida

 Euglena viridis
Ehrenberg 1830

Euglena viridis Species: 40-65 μm long, 14-20 μm wide; anterior end rounded, posterior end pointed; fusiform during locomotion; highly plastic when stationary; chloroplasts more or less bandform, radially arranged; nucleus posterior (Kudo, 1966). Fusiform, 40-80 μm long, 12-20 μm wide; swim rapidly (Illustrated guide, 1985).
Mucous body granular in shape (An illustrated guide to freshwater zooplankton in Japan, 2000).
Similar species -->> E. stellata; E. cantabrica;

Euglena viridis Ehrenberg 1830, cell body 60 μm long, 15 μm wide, L/W=4.0, x 640, drainage ditch at Shimofukada (near Shirakobato water park), Iwatsuki-ku (formerly Iwatsuki city), Saitama city, Saitama Pref., Japan, February 5, 2006 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Euglena viridis Euglena viridis Euglena viridis Euglena viridis

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