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Lobosea: Testacealobosia: Arcellinida: Difflugina (formerly Arcellina): Hyalospheniidae

 Hyalosphenia nobilis
Cash 1909

Hyalosphenia Genus: Test ovate, discoid in cross-section; pseudostome a terminal slit (Illustrated Guide, 1985).
Species: Test flask-shaped, 200 μm long, 90 μm wide (Cash, The British Freshwater Rhizopoda and Heliozoa vol. II, 1909).

Hyalosphenia nobilis Cash, test 170 μm long, 92 μm wide, L/W=1.8, pseudostome 20 μm wide, x 640, No.4, Yokotashiro, Oze-ga-hara (Oze marsh), Katashina village, Gunma Pref., Japan, October 6, 2007 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Hyalosphenia nobilis Hyalosphenia nobilis

Images of collecting locality: No.4, Yokotashiro, Oze-ga-hara (Oze marsh), Katashina village, Gunma Pref., Japan, October 6, 2007 by Y. Tsukii

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