Definitions

frustulum

Melanopsis

Melanopsis is a genus of freshwater gastropod molluscs in the family Melanopsidae.

The genus is known from the Cretaceous to the recent periods.

Distribution

They are found in southern Europe, North Africa, Asia Minor, New Caledonia and New Zealand.

Description

Shells are ovate, with a short spire, and the body whorl large and elongated. The outer lip is thin, but the inner lip has a smooth parietal callus, thickened into a pad over the parietal wall.

Species

References

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