Genus: Pseudostome lacks lobed collar; test round or oval in cross-section; pseudostome relatively large,
with or lacking a collar (Illustrated Guide, 1985).
Species:
Difflugia penardi Hopkinson ?,
test 75 μm long, 50 μm wide, L/W=1.5, pseudostome 25 μm wide,
x 640, Kannon-numa Forest Park (pond), Shimogo town, Fukushima Pref., Japan, July 10, 2005, collected by Eizaburo Tsukii, photo by Y. Tsukii 31 μm
63 μm
94 μm; x 640
Test 92 μm long, 50 μm wide, L/W=1.8, pseudostome 25 μm wide, x 640
Genus: Pseudostome lacks lobed collar; test round or oval in cross-section; pseudostome relatively large,
with or lacking a collar (Illustrated Guide, 1985).
31 μm
