genus Pinctada

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Noun1.genus Pinctada - pearl oystersgenus Pinctada - pearl oysters        
mollusk genus - a genus of mollusks
family Pteriidae, Pteriidae - pearl oysters
pearl oyster, Pinctada margaritifera - tropical marine bivalve found chiefly off eastern Asia and Pacific coast of North America and Central America; a major source of pearls
References in periodicals archive ?
Conversely, other pearl oysters of the genus Pinctada have shown a progressive increase in the ratio THK/SH with age (Hynd 1955).
Nothing extracted from the sea is, however, as valuable as a pearl, those fascinating iridescent excrescences produced by several species of tropical bivalve mollusks, especially members of the genus Pinctada (=Pteria).