Kaneohe Bay, Oahu, 2 feet, 28 mm

Kaiona, Oahu, 1 foot, 19 mm

Waimanalo, Oahu, 1 foot

Makapu'u tidepool, Oahu

Kahalu'u tidepool, Hawaii

Kahalu'u tidepool, Hawaii

Moku o Loe, Kaneohe Bay, Oahu

Rare except around the islands of Hawaii and Maui, it is abundant everywhere else throughout the Indo-West Pacific.  It grazes on algae-covered rocks in broad daylight on shallow reefs.  Shell shape, size, and color varies by location.  The mantle has an attractive zebra-striped pattern.  Used as currency in many countries until the 1800's.  Attains 1.8 inches, 45 mm.  Red Sea to Japan, Hawaii, and Rapa Nui.  Formerly known as Cypraea moneta.