CLAMS, USEFUL AND BEAUTIFUL 



1 An experienced clam digger wieldin? the rake. 3 Camp Venus Clam. Circe castrensis. showing variations. 



2 Mud dug away to show hard-shell tlams in place. Note 4 Forking Venus Clam. Circe divaricala. 



tube where the siphon is thrust up to the surface. 5 Elegant Venus Clam, Dione Veneris. 



6 Frilled Venus Clam, Chione Gnidia. 



