Merica melanostoma is a species of sea snail, a marine gastropod mollusk in the family Cancellariidae, the nutmeg snails.
The 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.[1]
This species is distributed in the Red Sea, western Indian Ocean, the Gulf of Oman, Western Australia and Northern Australia