PLATE II 



I. — Typical Shore Forms. 

 Association of barnacles, dog-whelks, and seed -mussels. 



Typical Shore Forms. 



Including sea-urchin {Echinus e.sculentus), starfish {Asterias rubens), masking 

 crab (Hyas), acorn-barnacles (Balanus), and limpets (Patella). 



