Common Sea Urchin (Echinus esculentus), view showing colourful shell , spines and tube feet extended on indistinct background, St Abbs, Scotland, UK

underwater common sea urchin sea urchin sea urchins common sea urchins echinus esculentus one animal close up close ups close up close ups shells hairy shell spines spine tube feet coral corals coral reef st abbs scotland uk united kingdom urchin urchins sealife sea life