Family: Scales round to elliptical, thin.
Genus: Test round or oval in cross-section; pseudostome terminal with dentate scales.
Species: Test small, hyaline, oviform, sligthly compressed, 35-52 μm long, breadth 0.5-0.6 of the length; thickness 0.8-0.85 of the breadth; pseudostome 7-10 μm wide; body scales 7-9 μm long, 5 μm wide (Cash & Wailes, The British Freshwater Rhizopoda and Heliozoa vol. III, 1915).
s. = scales
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