The test is almost spherical in shape and usually coloured pale greenish with dark green spines. Occasionally the spines are whitish and the test colour can be darker and more patterned. Spines may grow to a length of 5 mm. Test diameter up to 6 cm.
This common species of sea urchin is variably coloured and has caused much confusion with other species in its genus group as well as the genus Holopneustes.
Amongst algae, in shallow waters of bays, to depth of 70 m.
New Zealand and southern Australia.
Spines can puncture skin. Venom status unknown.
Recorded in Australia
- DSE Advisory List : Not listed
- EPBC Act 1999 : Not listed
- IUCN Red List : Not listed