General Description

This sea urchin is distinguished from other species by its hollow spines that are rough to the touch from spine tip to spine base. The spines are dark purple in colour, almost black, but may show a luminous green tinge in the presence of strong sunlight. They can reach a length of about 9 cm. The bare test is whitish with light mauve tubercles. Test diameter up to 10 cm.

Biology

This sea urchin is common on Victoria's coast. It is most abundant just below low tide level.

Distribution

New Zealand and eastern Australia. Eastern Victoria, potentially near Port Phillip.

Habitat

On rocky exposed shores, including just below low tide, to depth of 50 m.

More Information