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Family Cassididae

HAWAII

Casmaria erinaceus kalosmodix

Oahu, Hawaii

POLYNESIAN BONNET or HELMET

Rare in sand in deep water, usually collected empty or inhabited by hermit crab.  Outer lip & columella not especially thickened, 4 to 6 teeth on lower portion of outer lip.  Attains 4 inches.  Hawaii & Polynesia, parent species occurs from the Red Sea to Southern Japan, Micronesia, and Melanesia.