Rimellopsis powisiiRimellopsis powisii, common name Powis's tibia, is a species of large sea snail, a marine gastropod mollusks in the family Rostellariidae within the Stromboidea, the true conchs and their allies.DescriptionThe length of the shell varies between 30 mm and 75 mm.DistributionThis marine species occurs from Southern Japan, and in the Indo-West Pacific to New Caledonia and Queensland, Australia