image_list image_listE

Lobosea: Testacealobosia: Arcellinida: Centropyxidae

 Centropyxis discoides
Ehrenberg, 1838

Centropyxis discoides Genus: Test circular, ovoid or discoid; pseudostome eccentric, circular or ovoidal; with or without spines (Kudo, 1966).
Species: Pseudostome more or less central; test variable in shape and size; diameter 187-325 μm; with 0-12 spines; opaque or semitransparent; with fine sand-grains or diatom shells (Cojima, Sudo, Chihara eds., 1995).
Similar species -->> C. ecornis (lack spines)

Centropyxis discoides, test 175 μm long, 155 μm wide, L/W=, pseudostome 65 μm wide, x 400, x 640, a pond at Shirakobato water park, Koshigaya city, Saitama Pref., Japan, January 29, 2005 by Y. Tsukii
scale 100 μm scale 200 μm scale 300 μm; x 200 : scale 50 μm scale 100 μm scale 150 μm; x 400
Centropyxis discoides Centropyxis discoides

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