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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 163 μm long, 78 μm wide, L/W=2.1, pseudostome 21 μm wide, x 640, No.3, Oh-Yachi, Komado marsh (No.3), Showa village and Tajima town, Fukushima Pref., Japan, May 21, 2007, by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Hyalosphenia nobilis Hyalosphenia nobilis

Images of collecting locality: No.3, Oh-Yachi, Komado marsh (No.3), Showa village and Tajima town, Fukushima Pref., Japan, May 21, 2007, by Y. Tsukii

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