Home > Invertebrates > Mollusks > Gastropods > Helmets > Casmaria erinaceus

Family Cassididae

INDO-PACIFIC

Casmaria erinaceus

Philippines

COMMON BONNET

Occurs in sand at scuba depths.  Outer lip & columella not especially thickened, 4 to 6 teeth on lower portion of outer lip.  Attains 4 inches.  Red Sea to Southern Japan, Micronesia, and Melanesia.