A terrestrial shell, though the animal that inhabits it is almost amphibious; it greatly resembles the Bulimus, but is easily distinguished by never having the lip reflected or thickened.

Shell very thin, translucid, ovate-oblong, with a conical-pointed spire formed of a small number of whorls; aperture very large, oval, oblique; the edges disunited; the right always acute, the left acute and arched, formed by the columella.

Succinea cucullata.

S. amphibia.

S. oblonga.

S. amphibia. The amphibious Succinea. Pl. [24], fig. 4.

Species elongated, very thin and pellucid; spire short; aperture expanding; amber colour.

10. Auricula. Fourteen species.

This genus was so called from the resemblance which the aperture bears to the shape of an ear; many of the species are named from their resemblance to the ears of particular quadrupeds. It is a land-shell, found chiefly in the East and West India Islands.

Shell thick, solid, more or less smooth, oval, oblong, spire short and obtuse; aperture entire, oblong, enlarged, ear-shaped, much contracted behind; edges disunited; right lip sometimes thick and outwardly reflected; the left or columella with one or more teeth or thick callous plaits.