Genus: Test circular, ovoid or discoid; pseudostome eccentric, circular or ovoidal;
with or without spines (Kudo, 1966).
Species:
Centropyxis sp. similar to C. constricta,
test 65 μm long, 49 μm wide,
x 640, Hasukawara-shinmachi, Tsuchiura city, Ibaraki Pref., Japan, July 2003 by Y. Tsukii
31 μm
63 μm
94 μm; x 640