Calliostoma melliferumCalliostoma melliferum is a species of sea snail, a marine mollusk of the gastropod class in the family Calliostomatidae.DescriptionThe shell of Calliostoma melliferum is relatively small for a species in the genus Calliostoma, with maximum height ranging from 8 mm to 10 mm.DistributionThis species is only known from Canopus Bank, a seamount off the northeastern coast of Brazil, at depths between 60 m and 260 m.