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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; pseudostome relatively large, 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 acuminata Ehrenberg or D. claviformis ?, test 300 μm long, 80 μm wide, pseudostome 54 μm wide, x 200, x 400, Kabuto-yama sizen-kansatsu ike (pond), Kabuto-yama, Nishi-no-miya city, Hyogo Pref., Japan, September 10, 2004 by Y. Tsukii
scale 100 μm scale200 μm scale300 μm; x 200
Difflugia acuminata Difflugia acuminata

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