Difflugia oblonga
Ehrenberg
Genus: Pseudostome lacks lobed collar; test round or oval in cross-section;
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).
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Difflugia oblonga Ehrenberg ?,
test 145 μm long, 65 μm wide, pseudostome 28 μm wide, P/W=0.43,
x 640, Tanohara marsh, Shiga highland, Yamanouchi town, Nagano Pref., Japan, June 1, 2006 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Difflugia oblonga Ehrenberg,
test 140 μm long, 74 μm wide, pseudostome 25 μm wide, P/W=0.33,
x 400, x 640, Tanohara marsh, Shiga highland, Yamanouchi town, Nagano Pref., Japan, June 1, 2006 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Test 110 μm long, 51 μm wide, pseudostome 20 μm wide, x 400, x 640
Images of collecting locality:
Tanohara marsh, Shiga highland, Yamanouchi town, Nagano Pref., Japan, June 1, 2006 by Y. Tsukii
Please click on images for viewing enlarged.
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