Diagnosis: Shell circular in ventral and dorsal view, more or less hemispherical in lateral view (height/diameter ≈ 0.5); lateral sides evenly rounded; dorsal side flattened, composed of xenosomes more distinct and rough on dorsal surface than on smoother ventral half. Pseudostome large, about half the diameter of the shell, circular, with edge covered by rather regularly arranged, small xenosomes.
Dimensions: Diameter of shell 157-180 µm (n=10).
Ecology: Fresh water. Pond in the Odenwald, Germany.