The spines grow to only 3 mm long, and are banded green and red with a white tip. The colour of the test is usually light brownish. Test diameter up to 2 cm.
This small, uncommon sea urchin avoids predators by living camouflaged by algae. It is occasionally washed ashore.
Amongst algae, occasionally in intertidal areas when washed ashore, to depths greater than 120 m.
Spines can puncture skin. Venom status unknown.
Native to Australia
- DSE Advisory List : Not listed
- EPBC Act 1999 : Not listed
- IUCN Red List : Not listed