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Crown-of-Thorns Seastar

Acanthaster planci


The crown-of-thorns seastar, Acanthaster planci, is a large starfish that preys upon hard, or stony, coral polyps. The crown-of-thorns starfish receives its name from venomous thorn-like spines that cover its upper surface, resembling the biblical crown of thorns. It is one of the largest starfish in the world.


Coral reef in the Maldives. A large shallow lagoon surrounding a small island.

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1 Comment

Mark Ridgway
Mark Ridgway 7 months ago

Good spotting. Disastrous in Australia.

Spotted by

Spotted on Nov 11, 2008
Submitted on Apr 6, 2020

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