
Acorn Barnacles ©Paul Naylor
Acorn barnacle
Barnacles are so common on our rocky shores that you've probably never really noticed them. They're the little grey bumps covering the rocks that hurt your feet when you're rockpooling. They're actually tiny little crustaceans and are related to crabs and lobsters!
Enw gwyddonol
Semibalanus balanoidesPryd i'w gweld
January to DecemberSpecies information
Category
Ystadegau
Length of shell: 2cm Average lifespan: up to 18 monthsCommon