Species: Test elongate, small, usually scales invisible (= homogenous in appearance),
18-35 μm long, 7-17 μm wide;
pseudostome 3-6 μm; scales 3-6 μm
(Cash & Wailes, The British Freshwater Rhizopoda and Heliozoa vol. III, 1915).
Trinema lineare Penard ?,
test 40 μm long, 20 μm wide, L/W=2.0,
pseudostome 10 μm wide, scales elliptical (6 x 5 μm),
x 640, standing water near Yoshigadaira (or Yoshigataira) marsh, Shirane mountain, Kusatsu town, Gunma Pref., Japan, June 5, 2005 by Y. Tsukii
31 μm
63 μm
94 μm; x 640