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

Hyalosphenia minuta

Hyalosphenia Genus: Test ovate, discoid in cross-section; pseudostome a terminal slit (Illustrated Guide, 1985).
Species: Test 35-40 μm long, 20-25 μm wide (Cash, The British Freshwater Rhizopoda and Heliozoa vol. II, 1909).

Hyalosphenia minuta Cash, test 43 μm long, 27 μm wide, L/W=1.6, pseudostome 13 μm wide, P/W=, x 640, Onnenai, Kushiro marsh, Kushiro city, Hokkaido, Japan, October 16, 2005 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Hyalosphenia Hyalosphenia Hyalosphenia

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