Haleiwa, Oahu, 3 feet, 20 mm

Mokapu, Oahu, 2 feet, 26 mm

Fairly common under rocks in shallow water where it preys upon bivalves.  The shell is broad, has a brown aperture, and may be be encrusted by coralline algae.  It is superficially similar to Morula fuscoimbricata.  Attains 1 inch, 25 mm.  South Africa to Hawaii and the Society Islands.  Formerly known as Morula foliacea.