HeartUrchin Test Without Spines

"Sea Potato" sea urchin test without spines: The Heart Urchin known as a Sea Potato, Echinocardium cordatum (Pennant), upper surface of the empty test or shell without spines. Rhossili Bay strandline, Gower, South Wales, U.K.

Dorsal or upper surface of empty sea urchin test (shell): The Heart Urchin known as a Sea Potato, Echinocardium cordatum (Pennant), upper surface of the empty test or shell without spines. Rhossili Bay strandline, Gower, South Wales, U.K. (3)

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