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Lobosea: Testacealobosia: Arcellinida: Difflugiidae

Difflugia corona
Wallich, 1864

Difflugia Genus: Pseudostome lacks lobed collar; test round or oval in cross-section; with or lacking a collar (Illustrated Guide, 1985).
Species: 100-300 μm long; 120-320 μm wide (diam.); with up to 15 spines at level of broadest diam as a crown; pseudostome round, 4-20 dentate lobes, 50-150 μm diam. (Illustrated Guide, 1985). Test ovoid to spheroid, circular in cross-section; crown broadly rounded, with a variable number of spines; aperture (pseudostome) more or less convex in profile, central and its border multidentate or multlobate; test with fine sand-grains, opaque; 180-230 μm long, about 150 μm wide (diam.) (Kudo, 1966).

Difflugia corona, test 105 μm long, 95 μm wide, 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 Difflugia
Test μm long, μm wide, x 400, by Y. Tsukii
Difflugia Difflugia Difflugia Difflugia Difflugia Difflugia

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