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Lobosea: Testacealobosia: Arcellinida: Difflugiidae

Difflugia oblonga
Ehrenberg

Difflugia oblonga Genus: Pseudostome lacks lobed collar; test round or oval in cross-section; pseudostome relatively large, with or lacking a collar (Illustrated Guide, 1985).
Species: Test pyriform, flask-shaped, or ovoid; neck variable in length; aperture terminal, typically circular; test composed of angular sand-grains, diatoms; 60-580 μm by 40-240 μm (Kudo, 1966).


Difflugia oblonga Ehrenberg, test 68 μm long, 40 μm wide, L/W=1.7, pseudostome 16 μm diam., P/W=0.40, x 400, x 640, Higashi-hirosima, Hiroshima Pref., Japan, October 1998, 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



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