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The rough periwinkle (Littorina saxatilis) is a small species of sea snail that is common to shores around the North Atlantic ...
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Forager collects highly invasive species at beach for free, delicious dinner: 'I love some ...
But snails are a delicacy in France ... the smooth periwinkle (Littorina obtusata) and the smaller rough periwinkle (Littorina saxatilis), as Foster's Daily Democrat explained.