Neothais marginatraNeothais marginatra, common name : the brownish drupe, is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.DescriptionThe shell size varies between 20 mm and 45 mmDistributionThis marine species occurs in the Indian Ocean off Aldabra, the Mascarene Basin, the coast of South Africa and Mozambique; in the Pacific Ocean off Hawaii, the Fiji Islands, Samoan Islands and Polynesia; off Australia.