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Euglenophyceae: Euglenales
Mastigophora: Euglenida

 Phacus sp.
Dujardin

Phacus Genus: Highly flattened; pellicle firm; body form constant (Kudo, 1966). Chloroplasts small, discoid, pyrenoids usually absent; most species flat and leaf-shaped; often with ridges or fins running helically or longitudinally (Illustrated Guide, 1985).
Species:

Phacus sp., cell body 30 μm long, 12 μm wide, x 640, Shiba river, near Owada Park, Saitama city, Saitama Pref., Japan, April 3, 2005 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Phacus Phacus Phacus Phacus Phacus
Cell body 30 μm long, 11 μm wide, x 640
Phacus Phacus Phacus Phacus

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