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Lobosea: Testacealobosia: Arcellinida: Difflugiidae

Difflugia mammilaris
Penard, 1893

Difflugia mammilaris Genus: Pseudostome lacks lobed collar; test round or oval in cross-section; pseudostome relatively large, with or lacking a collar (Illustrated Guide, 1985).
Species: Size, 90-130 μm long; 30-45 μm wide; Test, long-oval, with nipple-like extention at base; clear chitinoid, imbedded siliceous particles; pseudostome, oval, 20-30 by 15-20 μm (Illustrated Guide, 1985).


Difflugia mammilaris, test 112 μm long, 88 μm wide (test diam.), pseudostome 35 μm diam., x 200, x 400, Japan, December 1998, by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400


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