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Periwinkle



Periwinkle, any of a genus (Littorina) of edible snails found in northern Europe and on the Atlantic coast of the United States. The periwinkle has a thick, spiral shell that ranges in color from grayish-brown to black. It feeds on algae and seaweed.



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21st Century Webster's Family Encyclopedia21st Century Webster's Family Encyclopedia - Pennsylvania Dutch to Pima