Green Sea Urchin
Scientific name: Psammechinus miliaris
Size: Average adult is 5cm across
Habitat: Rocky shores, mainly in crevices
- They eat mostly seaweed they scrape off the rock, but also eat small animals attached to the rock.
- They have sharp spines, so be careful when handling them.
- They use lots of small tube feet to move around at high tide.
- Pieces of seaweed and shell are trapped among the spines as camouflage.
Photo credit: Paul Naylor