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Euglenophyceae: Euglenales
Mastigophora: Euglenida

 Phacus circulatus
Pochmann

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 circulatus Pochmann var. circulatus ?, cell body 45 μm long (including caudal projection), 33 μm wide, L/W=1.4, x 640, Onnenai, Kushiro marsh, Kushiro city, Hokkaido, Japan, October 16, 2005 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Phacus Phacus Phacus

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