MCS logo, two figures in silhouette - a dolphin jumping, superimposed by a diving human, with the slogan 'Seas fit for life'.

MCS: Lancashire area group

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Right: Photograph of a common whelk Buccinum undatum by Gordon Fletcher.

The whelk is common on all rocky coasts, and prefers shallow water. The animal has a full rounded shell, with a compact spire. It is characterised by the pale skin of its foot, which bears strongly contrasting dark/black mottling.

  A dog whelk crawling over rocks.

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