QL 



430.6 

 03Z 

 Moll. 



CHECKLIST OF THE 



Recent Bivalve Mollusks 



""""^ (Pelecypoda) 



OF THE NORTHWEST COAST OF AMERICA FROM THE 

 POLAR SEA TO SAN DIEGO, CALIFORNIA 



WILLIAM HEALEY^DALL Sc. D., L. L. D. 

 1916 >' 





Published by 



SOUTHWEST MUSEUM 



Los Angeles, California 



