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Lobosea: Testacealobosia: Arcellinida: Difflugiidae

 Difflugia claviformis
Ehrenberg, 1838

Difflugia claviformis Genus: Pseudostome lacks lobed collar; test round or oval in cross-section; pseudostome relatively large, with or lacking a collar (Illustrated Guide, 1985).
Species:

Difflugia claviformis Ehrenberg, test 275 μm long (including spiny projection about 35 μm long), 75 μm wide, L/W=3.7, pseudostome 50 μm wide, x 200, x 400, x 640, No.2, Lake Nakatsuna, Omachi city, Nagano Pref., Japan, June 4, 2007 by Y. Tsukii
scale50 μm scale100 μm scale150 μm; x 400 ; scale 31 μm scale 63 μm scale 94 μm; x 640
Difflugia claviformis Difflugia claviformis Difflugia claviformis Difflugia claviformis Difflugia claviformis

Images of collecting locality: No.2, Lake Nakatsuna, Omachi city, Nagano Pref., Japan, June 4, 2007 by Y. Tsukii

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