CLAMS, USEFUL AND BEAUTIFUL 

 An experienced clam digger wielding the rake. 3 Camp Venus Clam. Circe castrensis. showing variations. 



Mud dug away to shftw hard-shell clams in place. Note 4 Forking Venus Clam, Circe divari^ala. 



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



6 Frilled Venus Clam, Chione Gnidia. 



