9. Succinea. Three species.

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.

A Manual of Conchology According to the System Laid Down by Lamarck, with the Late Improvements by De Blainville. Exemplified and Arranged for the Use of Students. · 第 162 / 258 题