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Euglenophyceae: Euglenales
Mastigophora: Euglenida

Phacus trimarginatus
Allegre & Jahn

Phacus trimarginatus 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).

Phacus trimarginatus Allegre & Jahn, cell body 65 μm long, 12 μm wide, L/W=5.4, x 640, Hasu-ike (lotus pond), Mizumoto Park, Tokyo, Japan, October 22, 2006 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Phacus trimarginatus Phacus trimarginatus

Images of collecting locality: Hasu-ike (lotus pond), Mizumoto Park, Katshika-ku, Tokyo, Japan, October 22, 2006 by Y. Tsukii

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