Name: Green Sea-urchin
Scientific name: Psammechinus miliaris
Nature Stars: 30
About: A small, round sea-urchin with strong, short spines. Greenish in colour, with purple tips to the spines. Lives amongst seaweed and rocks, grazing on sponges, seaweed and other algae, and also eats young shellfish.
How to identify: There are several similar sized sea urchins found in British waters. Told by its slightly flattened shape, greenish colour and purple-tipped spines
Where: Found on rocks shores all round our coasts, much more common in the north.
Fantastic fact: May live up to 10 years old.
Photograph credit: Green Sea-urchin