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Southwest Florida Shells

José H. Leal

Arca imbricata

Bruguière, 1789

Family Arcidae

Mossy Ark

Shell size to 75 mm; shell elongate-rectangular, equivalve. Hinge long, straight. Sculpture reticulated with little beads forming on intersection of radial and concentric elements, 6-8 beaded radial ribs present posteriorly. Byssal gap very large. Periostracum dark-brown, heavy, shaggy. Color dirty- to dark-brown.

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