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Euglenophyceae: Euglenales
Mastigophora: Euglenida

 Phacus obolus
Pochmann

Phacus obolus 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 obolus Pochmann, cell body 45 μm long (including tail), 24 μm wide, tail 13 μm long, x 640, a water reservoir (pond) near Yamaguchi university, Yamaguchi city, Yamaguchi Pref., November 21, 2004, by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Phacus obolus

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