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Lobosea: Testacealobosia: Arcellinida: Difflugiidae

 Difflugia lobostoma
Leidy, 1879

Difflugia Genus: Pseudostome lacks lobed collar; test round or oval in cross-section; with or lacking a collar (Illustrated Guide, 1985).
Species: Test ovoid to subspherical; aperture terminal; with three to six lobes; diameter 80-120 μm (Kudo, 1966). 90-170 μm long; 70-160 μm diam.; test, ovoid, round in cross-section; pseudostome terminal, usually quadrilobate, 30-50 μm diam. (Illustrated Guide, 1985).

Difflugia lobostoma, test 65 μm long, 52 μm wide, L/W=1.3, x 400, x 640, Uruguay, November 1999, photo 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 Difflugia
Test 76 μm long, 54 μm wide (right), L/W=1.4, x 400
Difflugia Difflugia Difflugia Difflugia
Test 75 μm long, 56 μm wide, L/W=1.3, x 400, x 640
Difflugia Difflugia Difflugia Difflugia
Cell division, test 78 μm long, 55 μm wide, L/W=1.4, x 400, x 640
Difflugia Difflugia Difflugia

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