Description: Cassis tuberosa (Linnaeus, 1758) - apertural view of a king helmet snail shell (specimen housed in the Biologic Repository at Gerace Research Centre/Bahamas Field Station, San Salvador Island, Bahamas). Family Cassidae - cassid snails prey on echinoids (and other echinoderms) in shallow-water marine sandy substrates and reef facies in tropical to temperate settings. Date: 26 March 2007, 19:51. Source:
Cassis tuberosa (king helmet snail) (San Salvador Island, Bahamas) 2. Author:
James St. John.