Genus (Dujardin, 1841): Test round or oval in cross-section; pseudostome anteroventral;
scales in regular rows (Illustrated Guide, 1985).
Species: Test 25-60 μm long, 14-40 μm wide,
pseudostome 6.5-16 μm wide
(Cash, The British Freshwater Rhizopoda and Heliozoa vol. III, 1915).
Trinema complanatum,
cell body μm long, μm wide, L/W=,
x 640, No.1, Ko-numa (pond/marsh), Minakami town (formerly Tsukiyono town), Gunma Pref., Japan, October 12, 2008 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Images of collecting locality:
No.1, Ko-numa (pond/marsh), Minakami town (formerly Tsukiyono town), Gunma Pref., Japan, October 12, 2008 by Y. Tsukii