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,
cell body μm long, μm wide, L/W=,
x 640, No.4, Yokotashiro, Oze-ga-hara (Oze marsh), Katashina village, Gunma Pref., Japan, August 3, 2008 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Images of collecting locality:
No.4, Yokotashiro, Oze-ga-hara (Oze marsh), Katashina village, Gunma Pref., Japan, August 3, 2008 by Y. Tsukii