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Whorl-spined Urchin

Prionocidaris verticillata


Also known as Knobby Sputnik Sea Urchin, Mine Urchin, Land Mine Sea Urchin, Crown Sea Urchin, Crown Urchin Thorn-spined Sea Urchin, Thorn-spined Urchin, Large-spined Urchin, Spiny Urchin and Spiky Urchin. Varies in color from place to place. They feed on invertebrates, sponges and even dead fish.


Found in shallow waters in rubble and patch reefs. Widespread in the Indo-Pacific region.


Spotted this on a night dive.

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Spotted by

Davao Del Norte, Philippines

Spotted on Nov 30, 2011
Submitted on Dec 12, 2011

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