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Lobosea: Testacealobosia: Arcellinida: Difflugiidae

Difflugia acuminata
Ehrenberg, 1838

Difflugia acuminata Genus: Pseudostome lacks lobed collar; test round or oval in cross-section; with or lacking a collar (Illustrated Guide, 1985).
Species: Size, 200-400 μm long, 55-100 μm diam; test, cylindroid, narrowed toward pseudostome, tapered at base to spinelike tip; round cross-section; clear; imbedded quartz particles. Pseudostome truncate, round 40-90 μm, no neck, no collar (Illustrated Guide, 1985).

Difflugia accuminata Ehrenberg , test 175 μm long, 66 μm wide, pseudostome 38 μm diam., 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

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