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Euglenophyceae: Euglenales
Mastigophora: Euglenida

Phacus caudatus
K. Hübner 1886

Phacus caudatus 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: Cell body ovoidal or ellipsoidal, 30-50 μm long, 15-20 μm wide, cauda nearly straight or slightly curved, keel reached at the base of the cauda, striae straight, paramylon bodies disc-shaped with a hole at its center, 1-3 in number (An Illustrated Guide to Freshwater Zooplankton in Japan, 2000).


Phacus caudatus Hübner 1886, cell body μm long, μm wide, x 640, Mizuko-kaizuka park, Fujimi city, Saitama Pref., Japan, May 9, 2004 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640
Phacus acuminatus Phacus acuminatus


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