This species differs from both the other Gangetic forms and from all others of the genus known to us in its much thinner and more transluscent shell, its depressed form and non-protruding spire. Its lateral profile is regular and forms an arch, less than a semicircle; the spire hardly protrudes beyond the anterior margin of the body-whorl. The spire though very minute is, however, distinctly lateral and spiral. In ventral view the shell is broadly oval, slightly truncated posteriorly. The upper part of the shell is invisible or practically invisible in this view. The columellar plate is separated from the lower margin of the shell, and extends considerably more than half way across its true mouth. The margin is irregularly and minutely crenulated. The posterior lip is very broad below the anterior margin of the true mouth of the shell. The dorsal surface is marked with well defined and regular transverse striae; minute longitudinal striae can also be detected with a strong lens. The periostracum is dull olivaceous green with minute black specks and with obscure longitudinal rays. The interior of the shell including the columellar plate has a faint glaucous tinge and is very highly polished. The operculum is rather short and instead of bearing a single prominent lateral process has two short rather broad tubercles one of which may be obscure.

India. The species is not uncommon in the lower parts of the Gangetic Delta, on bushes at the edges of creeks containing brackish water of considerable salinity.