rhal,, by W. SavilU-Kint, F.Z.S.'] 



LIMPETS, WHELKS, AND BARNACLES 



On the rocks at llfracombe ivhen the tide ivas ioiv 



IMilfard-on-Std 



SHELL BEACH, ABROLHOS ISLANDS 



Composed of iridescent top-shells 



Photc! by W. Saville-Ktnl, T .Z.H. 



GREAT CLAM-SHELL ON CORAL- 

 REEF 



The soft parts ha-ve been remo'ved to shoiv the si-ze of the shell 

 and the pure luhiteness of the interior 



GIANT CLAM-SHELLS ON THE 



GREAT BARRIER REEF, AS EXPOSED 



AT EXTREME LOW TIDE 



The ihell in the foreground is 4 feet in diameter 



741 



