Shell very depressed, orbicular or oblong; imperforate; interior pearly; aperture very large, oval, longer than wide; the right edge effuse, dilated, and open; summit pointed and incurved.

Stomatella imbricata.

S. rubra.

S. sulcifera.

S. auricula.

S. planulata.

S. imbricata. The imbricated Stomatella. Pl. [22], fig. 1.

Sub-orbicular, convex, sub-depressed, rough, covered with imbricated scales; colour grayish brown.

S. auricula. The ear-shaped Stomatella.

Species oval, elongated.