Fiery Sea Urchin

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The Fiery Sea Urchin (Diadema palmeri) is a very brightly coloured urchin species that is found in predominantly in temperate seas however it is also recorded in sub-tropical waters. It is only known to occur off the New South Wales coast of Australia and the deep waters of New Zealand. This species belongs to the Diadematidae family and is known to occur from depths of 10 to 60 metres. It is known to occur on coral and rocky reefs and is often found wedged in crevices and feeds on algae.

This species was originally described from specimens collected in deep water in New Zealand and can be recognised by its brilliant/fiery red body and the anal cone is light brown with a dark black spot in the middle. It is found along the east coast of Australia however its occurrence is rare. This species has exceptionally sharp spines and although they are not venomous they can give a very painful sting.

This species grows to a maximum width of approximately 25cm.

Family: Diadematidae

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