Atlantic winged oyster
A species of Winged oysters Scientific name : Pteria colymbus Genus : Winged oysters
Atlantic winged oyster, A species of Winged oysters
Botanical name: Pteria colymbus
Genus: Winged oysters
Content
Description
Photo By Veronidae , used under CC-BY-SA-3.0 /Cropped and compressed from original 
Description
The Atlantic winged oyster grows to about 7 centimetres (2.8 in) long and is a distinctive, asymmetric shape. It has a long straight hinge with one wing drawn out a long way and the other one much smaller. The upper valve is brownish, often mottled with paler markings. The lower valve is flatter and smaller and the interior of the shell is pearly grey. The posterior margin is rounded while the anterior margin is elongated and slopes at an acute angle to the hinge. There are a number of indistinct, irregular ribs that flare out from the umbo. These are sparsely covered with blunt spines and there is a fine sculpturing of concentric growth lines.
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Scientific Classification
Phylum
Molluscs Class
Bivalve shell Order
Oysters and allies Family
Pearl oysters and allies Genus
Winged oysters Species
Atlantic winged oyster 
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