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Lobosea: Testacealobosia: Arcellinida: Arcellidae

Arcella arenaria

Arcella Genus: Test variable, chitinoid; binucleate (Illustrated Guide, 1985).
Group: Discoides (Test flattened; height < 1/2 greatest diam.)

Species:


Arcella arenaria or A. catinus ?, test 91 μm wide, μm high, pseudostome 17 μm wide, x 640, Ohnuma (a pond in Ohnuma enchi), Nasu-shiobara city (formerly Shiobara town), Tochigi Pref., Japan, July 23, 2006, collected by Eizaburo Tsukii, photo by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Arcella Arcella Arcella

Images of collecting locality: Ohnuma (a pond in Ohnuma enchi), Nasu-shiobara city (formerly Shiobara town), Tochigi Pref., Japan, May 5, 2006, by Y. Tsukii


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