Kumamoto oysters (Crassostrea sikamea) are quite small, only slightly larger than the tiny Olympia oyster. With its deep cupping and highly sculptured, fluted shell, this smooth, sweet, nutty & fruity morsel is a favorite of half-shell connoisseurs.
Kumamoto oysters were brought to the US from the Kumamoto prefecture of Japan in the late 1940's as an experiment to replace the troubled native Olympia.