Family: Test usually more or less compressed; pseudostome narrowly oval or slit-like.
Genus: Test more or less flask-shaped, with more or less neck (Illustrated Guide, 1985). Species: |
31 μm
63 μm
94 μm; x 640
Argynnia dentistoma var. lævis Hopk (or Argynnia dentistoma (Penard 1890) ?),
test 112 μm long, 81 μm wide, L/W=1.4,
pseudostome 28 μm wide, P/W=,
x 640, Hakkoda Gourd line, Hakkoda mountain, Aomori city, Aomori Pref., Japan, July 17, 2005 by Y. Tsukii
Test 108 μm long, 90 μm wide, L/W=1.2,
pseudostome 24 μm wide, P/W=0.3, x 640
Test 116 μm long, 96 μm wide, L/W=1.2,
pseudostome 20 μm wide, P/W=0.2, x 640
