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Lobosea: Testacealobosia: Arcellinida: Centropyxidae

Centropyxis aculeata
(Ehrenberg 1838)

Centropyxis ecornis Genus: Test circular, ovoid or discoid; pseudostome eccentric, circular or ovoidal; with or without spines (Kudo, 1966).
Species: Test variable in shape and size; diameter 100-150 μm; pseudostome 50-60 μm; with 4-6 spines (?); opaque or semitransparent; with fine sand-grains or diatom shells (Kudo, 1966). 138-200 μm in diameter, 48-60 height; several spines; pseudostome 30-60 μm, recurved, invaginated (Illustrated Guide, 1985).


Centropyxis aculeata Ehrenberg, test 170 μm long, 140 μm wide, L/W=1.2, pseudostome 60 μm wide, x 400, x 640, a small pond at Obihiro University of Agriculture and Veterinary Medicine, Obihiro city, Hokkaido, Japan, October 13, 2005 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
Centropyxis Centropyxis Centropyxis


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