1. 13 Not all fossils are shells of invertebrates like clams, oysters, cowries, and periwinkles.

2. Farther down the cove hundreds of periwinkles move slowly over the black rocks, feeding on kelp.

3. We slice green apples from my tree, scrub mussels and crabs, extract periwinkles from their shells.

4. Colclough Braganza Teacup Trio, BBC Keeping up Appearances, Hyacinth Bucket's Hand Painted Periwinkles English China Tea Cup, Saucer & Plate Annieslands