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 claviformis Ehrenberg,
test 250 μm long (including spine, 35 μm), 100 μm wide, L/W=2.5 (2.2),
pseudostome 45 μm wide,
x 640, Hasu-ike (pond), Shiga highland, Yamanouchi town, Nagano Pref., Japan, June 19, 2005 by Y. Tsukii 50 μm
100 μm
150 μm; x 400
Genus: Pseudostome lacks lobed collar; test round or oval in cross-section; pseudostome relatively large,
with or lacking a collar (Illustrated Guide, 1985).
50 μm
