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Euglenophyceae: Euglenales
Mastigophora: Euglenida

 Phacus sp.
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 sp. ??, similar to P. pleuronectus but with many small disc-shaped paramylon bodies, cell body 51 μm long, μm wide, tail curved, x 640, Mihashi Park, Saitama city (Omiya), Saitama Pref., Japan, October 2002 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Phacus pleuronectes Phacus pleuronectes

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