
Green sea urchin ©Paul Naylor www.marinephoto.co.uk
Green sea urchin
This small, round sea urchin is (unsurprisingly!) green in colour and can be found on rocky shores around the UK.
Scientific name
Psammechinus miliarisWhen to see
January to DecemberTop facts
Category
Stats
Diameter: Up to 5cm Average Lifespan: 10 yearsCommon