Acorn barnacle (Semibalanus balanoides)

Species information

Young acorn barnacles © Colin Milkins / www.osfimages.com	Young acorn barnacles on adult shells © Colin Milkins / www.osfimages.com	Acorn barnacle feeding © Barrie Watts / www.osfimages.com
Acorn barnacles © London Scientific Films / www.osfimages.com	Acorn barnacles © N. A. Callow	Acorn barnacles © David & Katie Urry / www.ardea.com
Mass of acorn barnacles © www.osfimages.com