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Euglenophyceae: Euglenales
Mastigophora: Euglenida

 Phacus undulatus
(Skvortzow) Pochmann f. undulatus

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 undulatus (Skvortzow) Pochmann (or P. landekiensis Stawinski ?), cell body 60 μm long (including tail), 44 μm wide, tail 10 μm long, x 640, a small 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 Phacus Phacus

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