Menathais tuberosa

Menathais tuberosa, commonly known as Humped rock shell or humped rocksnail, is a species of sea snail in the family Muricidae, the murex snails or rock snails.

Description
The size of an adult shell varies between 17 mm and 50 mm.

Distribution
This species occurs in the Indian Ocean off Madagascar and Tanzania; also in the southwestern and central Pacific Ocean off Tonga