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Identifyication of small delicate shell found on the beach

This is a Sea Potato (Echinocardium cordatum).
Niels Holst's user avatar
11 votes

Identifyication of small delicate shell found on the beach

This is almost certainly the shell of a Sea Urchin. These are spiny echinoderms that are found almost world-wide in many different species in the littoral down to ~5000 m (16,404 feet) depth. They ...
bob1's user avatar
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