image_list image_listE

Lobosea: Testacealobosia: Arcellinida: Difflugiidae

Difflugia oblonga
var. venusta (Penard) Cash

Difflugia oblonga Genus: Pseudostome lacks lobed collar; test round or oval in cross-section; pseudostome relatively large, with or lacking a collar (Illustrated Guide, 1985).
Species: Test pyriform, flask-shaped, or ovoid; neck variable in length; aperture terminal, typically circular; test composed of angular sand-grains, diatoms; 60-580 μm by 40-240 μm (Kudo, 1966).
Similar species -->> D. scaplellum; D. acuminata;


Difflugia oblonga Ehrenberg, test 143 μm long, 77 μm wide, L/W=1.9, pseudostome 27 μm wide, x 400, x 640, Maeyama marsh, Shiga highland, Yamanouchi town, Nagano Pref., Japan, June 17, 2007 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 oblonga Difflugia oblonga

Images of collecting locality: Maeyama marsh, Shiga highland, Yamanouchi town, Nagano Pref., Japan, June 17, 2007 by Y. Tsukii


Please click on images for viewing enlarged.
Copyright Protist Information Server