Genus: Test ovoid, symmetrical, compressed, composed of a transparent membrane with or without adherent extraneous particles
(Cash & Wailes, The British Freshwater Rhizopoda and Heliozoa vol. III, 1915).
Species: Test covered with many grains of quartz and various extraneous particles,
55-97 μm long, 31-74 μm wide;
pseudostome lacking any collar, cytoplasm containing algal endosymbionts
(Cash & Wailes, The British Freshwater Rhizopoda and Heliozoa vol. III, 1915).
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