![Green sea urchin](/sites/default/files/styles/node_hero_default/public/2018-02/wildlifetrusts_40333398867.jpg?h=ee09d934&itok=Yp6hw6xg)
Green sea urchin ©Paul Naylor www.marinephoto.co.uk
Green sea urchin
Scientific name: Psammechinus miliaris
This small, round sea urchin is (unsurprisingly!) green in colour and can be found on rocky shores around the UK.
Species information
Statistics
Diameter: Up to 5cm Average Lifespan: 10 yearsConservation status
Common