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).
|
50 μm
100 μm
150 μm; x 400
T. contraria De Cloitre, 1961: 40-45 μm long, 20-22 wide, 20-23 high; test like T. enchelys but higher; pseudostome 6 x 11 μm, longer than broad (Illustrated Guide, 1985).
Similar genus Corythion Taranek, 1881: Test round or oval in cross-section;
pseudostome anteroventral; scales irregularly scattered;
rim of pseudostome incurved (Illustrated Guide, 1985).
Taránek (Kudo, 1966).
C. dubium Taranek, 1881: 23-65 μm long,
16-40 wide, 12-20 high; test ovoid, unsymmetrically compressed, cross-section elliptical;
pseudostome 5-16 μm, ventral, oblique, rim
incurved (Illustrated Guide, 1985).