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Heart Urchin shell



Heart urchin, any echinoid marine invertebrate of the order Spatangoidea (phylum Echinodermata), in which the body is usually oval or heart-shaped. The test (internal skeleton) is rather fragile with four porous spaces, or petaloids. The body is covered with fine, usually short spines. Reference:


Heart urchins live in burrows lined with mucus. The common heart urchin (Echinocardium cordatum) occurs in all oceans. Reference:


Several Heart urchin shells have been found together with different seastar species in the sand bar of Port Barton, San Vicente.

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Spotted by

Mimaropa, Philippines

Spotted on Jul 4, 2019
Submitted on Jul 7, 2019

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