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Long-spined Sea Urchin

Diadema antillarum


Shallow reefs and rocky bottoms, often in holes and crevices on the rocks and reef.


Haven't seen many urchins in a long time in south Florida. Glad to see this guy as they are an important herbivore maintaining reef health by controlling algae. I hope they are making a comeback. Also, this one apparently has the rarer grey spines rather than black.

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Spotted by

Lauderdale-by-the-Sea, Florida, United States

Spotted on Sep 29, 2021
Submitted on Oct 3, 2021

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