Melanopsis

Melanopsis is a genus of freshwater snails with a gill and an operculum, aquatic gastropod mollusks in the family Melanopsidae.

[4] These snails are found in southern Europe, North Africa, Asia Minor, New Caledonia and New Zealand.

[5] Their shells are ovate, with a short spire, and a large elongated body whorl.

The outer lip of the aperture is thin, but the inner lip has a smooth parietal callus, thickened into a pad over the parietal wall.

[5] Species within the genus Melanopsis include: (Extinct taxa indicated by a dagger, †.)