SMITHSONIAN MISCELLANEOUS COLLECTIONS 

 VOLUME 125, NUMBER 2 



(End of Volume) 



THE PYRAMIDELLID MOLLUSKS OF THE 



PLIOCENE DEPOSITS OF NORTH 



ST. PETERSBURG, FLORIDA 



(With 18 Plates) 



By 

 PAUL BARTSCH 



Associate in Mollusks, U. S. National Museum 







t& 



'^Mth 



fi/NGTCS*: 



(Publication 4186) 



CITY OF WASHINGTON 



PUBLISHED BY THE SMITHSONIAN INSTITUTION 



MAY 5, 1955 



