Bathybembix bairdiiBathybembix bairdii, common name Baird's top shell, is a species of deep-water sea snail, a marine gastropod mollusc in the family Calliotropidae.DescriptionThe size of the shell varies between 38 mm and 50 mm.DistributionThis species occurs in the Pacific Ocean from the Bering Sea to Chile at depths between 300 m and 1500 m.