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Euglenophyceae: Euglenales
Mastigophora: Euglenida: Euglenina

 Euglena oxyuris
Schmarda

Euglena oxyuris Species: 150-500 μm long, 20-40 μm wide; cylindrical, almost always twisted; anterior end rounded, posterior end pointed; numerous discoid chloroplasts; two ovoid paramylon (paramylum) bodies; stigma large; sluggish (Kudo, 1966). Body flattened, twisted, with longitudinal groove; two oval paramylon (paramylum) rings (How to know the protozoa, 1979).
Similar species -->> tripteris; E. gigas; E. gaumei;

Euglena oxyuris ?, cell body 165 μm long, 19 μm wide, slightly tiwsted or not?, outline shape silimar to E. oxyuris or E. gigas or E. spirogyra, x 640, near Nan-ko (lake), Shirakawa city, Fukushima Pref., Japan, August 2003, by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Euglena Euglena Euglena

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