Purple Sea Urchin
Heliocidaris crassispina
- Group: Urchin
- Typical depth: 0–70 m
- Max size: 7.7 cm
A purple urchin of intertidal pools and shallow rock, it clusters in crevices and under boulders to ride out the surge. It grazes mainly on algae as an opportunistic feeder, and packing together helps it hold ground against wave turbulence.
Taxonomy: Animalia › Echinodermata › Echinoidea › Camarodonta › Echinometridae › Heliocidaris
Species data via the World Register of Marine Species (WoRMS), AphiaID 513312.
FAQ
- How deep does the Purple Sea Urchin live?
- The Purple Sea Urchin (Heliocidaris crassispina) is typically found at 0–70 m.
- How big does the Purple Sea Urchin get?
- The Purple Sea Urchin grows to about 7.7 cm.