image_list image_listE

Euglenophyceae: Euglenales
Mastigophora: Euglenida

Phacus pleuronectes
(O.F. Müller) Dujardin 1841

Phacus Species: 45-100 μm long, 30-70 μm wide; short posterior prolongation slightly curved; a prominent ridge on the convex side; longitudinally striated; one ? circular paramylon (paramylum) body near center; flagellum as long as cell body (Kudo, 1966). Cell body nearly spherical at dorsal view; anterior end separated into two spherical projections; cauda strongly curved; dorsal ridge short or absent (cf. dorsal ridge present P. triqueter); cell body 40-80 μm long, 30-50 μm wide; two ? paramylon bodies disc-shaped; striae straight (An Illustrated Guide to Freshwater Zooplankton in Japan, 2000).
Similar species -- >> P. triqueter; P. curvicauda;


Phacus pleuronectes (O.F. Müller) Dujardin, cell body 88 μm long (including cauda, 25 μm long), 53 μm wide, L/W=, x 640, Hasu-ike (lotus pond), Mizumoto Park, Katshika-ku, Tokyo, Japan, October 22, 2006 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Phacus pleuronectes Phacus pleuronectes Phacus pleuronectes

Phacus pleuronectes (O.F. Müller) Dujardin, cell body 83 μm long (including cauda, 22 μm long), 45 μm wide, L/W=, 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 pleuronectes Phacus pleuronectes Phacus pleuronectes

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


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