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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).

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Difflugia sp. (tuberculata), test 169 μm long, 131 μm wide (test diam.), pseudostome 44 μm diam., x 400, Japan, 1998 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400
Difflugia Difflugia Difflugia

Difflugia (tuberculata ?) , x 400, by Y. Tsukii
Difflugia Difflugia Difflugia Difflugia Difflugia Difflugia Difflugia Difflugia

Difflugia tuberculata ?, x 400, x 640, December 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
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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