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Lobosea: Testacealobosia: Arcellinida: Difflugiidae

Difflugia tuberculata
(Wallich, 1864)

Difflugia tuberculata Genus: Pseudostome lacks lobed collar; test round or oval in cross-section; pseudostome relatively large, with or lacking a collar (Illustrated Guide, 1985).
Species: 70-150 μm long; 50-130 μm diam.; test like D. lobostoma but of clear tubercules with imbedded quartz granules; pseudostome polygonal, not lobed, 20-50 μm diam., on short collar (Illustrated Guide, 1985).

Difflugia tuberculata ?, test 95 μm long, μm wide, x 640, Shimaru-no-ike, Kejo-numa, Furukawa city, Miyagi Pref., Japan, November 2003 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400
Difflugia Difflugia Difflugia Difflugia

D. lobostoma Leidy, 1879: Test ovoid to subspherical; aperture terminal; with three to six lobes; 80-120 μm diam. (Kudo, 1966).

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