Nick Upton / Painted topshell (Calliostoma zizyphinum) on Kelp frond in rockpool on low shore. Near Falmouth, Cornwall, England, UK. September.
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Robert Thompson / Painted top shell (Calliostoma zizyphinum) and Common barnacle (Semibalanus balanoides) on rock at edge of Strangford Lough. Mill Quarter Bay, Killard Point National Nature Reserve, Strangford, County...
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Sue Daly / Painted top shell (Calliostoma zizyphinum) Trondheimsfjord, Norway, July.
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Sue Daly / Painted top shell (Calliostoma zizyphinum) on seashore, Sark, British Channel Islands.
