Merica melanostomaMerica melanostoma is a species of sea snail, a marine gastropod mollusk in the family Cancellariidae, the nutmeg snails.SubspeciesMerica melanostoma melanostoma ''Merica melanostoma westralis''DescriptionThe shell is whitish-orange and cream. Its size varies between 14mm and 38 mm, ending in a pointed apex. The shells are more globular than the rest of the genus, accented with rounded shoulders and deep sutures. The surface is covered with fine nodules.DistributionThis species is distributed in the Red Sea, western Indian Ocean, the Gulf of Oman, Western Australia and Northern Australia