Genus: Pseudostome lacks lobed collar; test round or oval in cross-section; pseudostome at end of
bent neck; test more or less coiled or folded (Illustrated Guide, 1985).
Species:
Lesquereusia sp. (or similar genus ?),
test 330 μm long, 294 μm wide, L/W=1.1,
pseudostome about 70 μm wide,
x 200, x 400, x 640, Hyoutan-ike (gourd pond), Shiga highland, Yamanouchi town, Nagano Pref., Japan, June 19, 2005 by Y. Tsukii
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
x 200, x 400
Endosymbiotic algae (green spheres) 5-6 μm in diam.,
endosymbiotic fungi (?, white spheres) 4 μm in diam., x 400, x 640
x 200, x 400