Genus: Pseudostome lacks lobed collar; test round or oval in cross-section; pseudostome relatively large,
with or lacking a collar (Illustrated Guide, 1985).
Species:
Similar species >>D. bacillariarum;
D. pyriformis;
D. oblonga;
Difflugia bacillifera Penard,
test 170 μm long, 90 μm wide, L/W=1.9, pseudostome 33 μm wide,
x 400, x 640, Yacho-no-mori marsh (Ohnigo marsh), Sukawa highland, Kurikoma mountain, Higashi-naruse village, Akita Pref., Japan, July 24, 2005 by Y. Tsukii
31 μm
63 μm
94 μm; x 640