Living Heart Urchin

Living 'Sea Potato' sea urchin, Echinocardium cordatum (Pennant), showing upper surface,on the low tide sand at Port Eynon, Gower, South Wales, UK

Living ‘Sea Potato’ sea urchin, Echinocardium cordatum (Pennant), showing upper surface, on the low tide sand at Port Eynon, Gower, South Wales, UK (8)

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