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Lobosea: Testacealobosia: Arcellinida: Centropyxidae

 Centropyxis constricta
(Ehrenberg, 1841)

Centropyxis constricta 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).

Difflugia constricta (Ehrenberg) ?, test 140 μm long, 80 μm wide, L/W=, pseudostome 40 μm long, 47 μm wide, L/W=, x 640, No. 1, Omotsubo marsh (omotubo marsh, Suzuran-no-sono), Tetta-cho, Niimi city (formerly Tetta cho), Okayama Pref., Japan, September 23, 2006 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400
Difflugia constricta Difflugia constricta Difflugia constricta

Images of collecting locality: No.1, Omotsubo marsh (omotubo marsh, Suzuran-no-sono), Tetta-cho, Niimi city (formerly Tetta cho), Okayama Pref., Japan, September 23, 2006 by Y. Tsukii

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