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Southwest Florida Shells

José H. Leal

Modiolus squamosus

Beauperthuy, 1967

Family Mytilidae

Southern Horse Mussel

Shell size to 65 mm; shell similar to Modiolus americanus, but with umbones smaller and not swollen, and coarse, thick, brown periostracum with long filaments. Color brownish with oblique whitish ray on older specimens; umbones white.

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