Family: Test usually more or less compressed; pseudostome narrowly oval or slit-like.
Genus:
(Illustrated Guide 2nd).
Species:
(Illustrated Guide, 2nd).
Porosia bigibbosa (Archer 1867) Leidy ?,
test 230 μm long, 145 μm wide, L/W=1.6,
pseudostome 55 μm wide, P/W=0.4,
scales μm long, μm wide,
x 400, x 640, Hakkoda Gourd line, Hakkoda mountain, Aomori city, Aomori Pref., Japan, July 17, 2005 by Y. Tsukii 50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
x 640
Test 230 μm long, 150 μm wide, L/W=1.5,
pseudostome 55 μm wide, P/W=0.4,
scales μm long, μm wide, x 400, x 640
x 640
Family: Test usually more or less compressed; pseudostome narrowly oval or slit-like.
50 μm
