﻿SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOLUME 59, NUMBER 2 



NEW SPECIES OF FOSSIL SHELLS FROM 

 PANAMA AND COSTA RICA 



Collected by D. F. MacDonald 



BY 



WILLIAM HEALEY DALL 



(Publication 2077) 



CITY OF WASHINGTON 



PUBLISHED BY THE SMITHSONIAN INSTITUTION 



MARCH 2, 1912 



