Genus: Test ovate, discoid in cross-section; pseudostome a terminal slit
(Illustrated Guide, 1985).
Species: Test 75 μm long, 60 μm wide
(Cash, The British Freshwater Rhizopoda and Heliozoa vol. II, 1909).
Hyalosphenia cuneata Stein,
test 60 μm long, 39 μm wide, L/W=1.5, pseudostome 14 μm wide,
x 640, Yakebe-ike (pond), Sayama park, Higashi-Murayama city, Tokyo, Japan, February 11, 2006 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Images of collecting locality:
Yakebe-ike (pond), Sayama park, Higashi-Murayama city, Tokyo, Japan, February 11, 2006 by Y. Tsukii