Habitat: Rocky areas and reef, rocky crevices or under rocks
Depth: Subtidal to 10+ metres
The underside of the urchin, showing the central mouth
A juvenile, covered in debris
This is the most common large sea urchin in South Australian waters. It is common in rocky crevices and is a voracious predator of Ecklonia kelp. It is a reddish-purple colour overall, with long sharpened spines. It can be confused with Centrostephanus tenuispinus, which is more densely-spined, and is usually a blueish colour.
