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
31 μm
63 μm
94 μm; x 640
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