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Southwest Florida Shells with Emphasis on Sanibel & Captiva
José H. Leal
Family Donacidae
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Donax variabilis
Say, 1822
Variable Coquina
Shell size to 20 mm; shell wedge-shaped or trigonal. Sculpture of delicate concentric growth lines, and radial striations that become stronger toward posterior end of shell. Ligament external. Margins crenulated. Color white, yellow, bluish, purple, mauve, pink with rays of darker tones. Intertidal on sandy beaches.
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