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. claviformis;
D. acuminata;
D. scalpellum;
Difflugia bacillariarum var. elegans (Penard) Cash (similar to D. bacillifera Penard),
test 150 μm long, 70 μm wide, pseudostome about 45 μm wide,
x 400, x 640, Hakama marsh (or bog), Madarao highland (Niigata & Nagano Pref.), Myoko village, Niigata Pref., Japan, May 15, 2005 by Y. Tsukii 50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
Test 170 μm long, 75 μm wide, pseudostome 45 μm wide, x 400, x 640
Test 150 μm long, 67 μm wide, pseudostome 45 μm wide, x 400
Test 150 μm long, 70 μm wide, pseudostome 45 μm wide, 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
