Home > Invertebrates > Bivalves > Crassostrea gigas

Updated 2/14/2026

Family Ostreidae

EAST ASIA / HAWAII

Crassostrea gigas



Mokapu, Oahu

Moku o Loe, Kaneohe Bay, Oahu, 1 foot

 

JAPANESE OYSTER

Common in Kane'ohe Bay on seawalls and mangroves, introduced to Hawaii from Japan.  Rectangular and relatively smooth.  Attains 13 inches.  The North American Blue Point oyster, Crassostrea virginica, has a narrower apex and scaly surface.  It   occurs in Pearl Harbor.