image_list image_listE

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. circulatus; P. pleuronectes;


Phacus curvicauda Swirenko 1915 or Phacus circulatus ?, cell body 50 μm long, μm wide, x 640, Naruto town, Chiba Pref., Japan, September 2003 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 Phacus
Phacus Phacus


Please click on images for viewing enlarged.
Copyright Protist Information Server