Genus: Test round or oval in cross-section; pseudostome anteroventral;
scales in regular rows (Illustrated Guide, 1985).
Species:
Trinema sp. (T. lineare Penard or similar species ?),
test 53 μm long, 22 μm wide, pseudostome 8 μm wide,
x 640, Imou bog, Toyohashi city, Aichi Pref., Japan, September 11, 2004 by Y. Tsukii
31 μm
63 μm
94 μm; x 640