Family: Scales round to elliptical, thin.
Genus: Test round or oval in cross-section; pseudostome terminal with dentate scales.
Species: Test 33-70 μm long, 12-23 μm wide; pseudostome 6-12 μm wide; (Cash & Wailes, The British Freshwater Rhizopoda and Heliozoa vol. III, 1915).
s. = scales
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