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Euglenophyceae: Euglenales
Mastigophora: Euglenida

Phacus curvicauda
Swirenko 1915

Phacus curvicauda 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 25-30 μm long, 24-26 μm wide, broad ovoid or nearly spherical at dorsal view; dorso-ventrally grooved; tail region short, not straight; two disc-shaped paramylons; a flagellum two-times longer than the body length (An illustrated guide to freshwater zooplankton in Japan, 2000).
Similar Species -->> P. pleuronectes;


Phacus curvicauda Swirenko var. curvicauda, cell body 45 μm long (including tail), 34 μm wide, x 640, a small pond near a gymnasium at Yamaguchi university, Yamaguchi city, Yamaguchi Pref., November 21, 2004, by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Phacus curvicauda Phacus curvicauda Phacus curvicauda


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