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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; 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 110 μm long, 65 ? μm wide, L/W=1.7, pseudostome 23 μm wide, P/W=0.35, x 640, Hikage marsh, Shiga highland, Yamanouchi town, Nagano Pref., Japan, June 19, 2005 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Difflugia oblonga Difflugia oblonga

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