image_list image_listE

Lobosea: Testacealobosia: Arcellinida: Centropyxidae

Centropyxis constricta
(Ehrenberg, 1841)

Centropyxis Genus: Test circular, ovoid or discoid; pseudostome eccentric, circular or ovoidal; with or without spines (Kudo, 1966).
Species: Test 120-150 x 75-100 μm, 60-75 μm in hight, pouch-shaped in oral view, round in lateral, tapered toward anterior; pseudostome 25-30 μm with incurved lips; several similar species (Illustrated Guide, 1985).


Centropyxis constricta (Ehrenberg) (or C. aerophila or Difflugia constricta), cell body 130 μm long, 85 μm wide, L/W=1.5, x 640, a small pond near Yamakado marsh (Yamakado-Suigen-no-Mori), Nishi-Asai town, Shiga Pref., Japan, June 30, 2008, by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Centropyxis constricta Centropyxis constricta Centropyxis constricta

Images of collecting locality: A small pond near Yamakado marsh (Yamakado-Suigen-no-Mori), Nishi-Azai town, Shiga Pref., Japan, June 30, 2008, by Y. Tsukii


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