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Littoraria angulifera (Lamarck, 1822) Mangrove Periwinkle In Situ |
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| On concrete piling of U. S. Government dock in St. Johns River, Ft. Caroline National Memorial, Jacksonville, Duval Co., Florida 10/20/2007 (21 mm.). The species shares this habitat with the abundant species Littoraria irrorata (Say, 1822) Marsh Periwinkle. |
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