CONTRIBUTIONS 



TO THE 



TERTIARY FAUNA OF FLORIDA 



WITH ESPECIAL REFERENCE TO THE 



SILEX BEDS OF TAMPA AND THE PLIOCENE 

 BEDS OF THE CALOOSAHATCHIE RIVER 



INCLUDING IN MANY CASES 



A COMPLETE REVISION OF THE GENERIC GROUPS TREATED OF 

 AND THEIR AMERICAN TERTIARY SPECIES 



BY 



WILLIAM HEALEY DALL, A.M. 



PALEONTOLOGIST TO THE UNITED STATES GEOLOGICAL SURVEY; HONORARY PROFESSOR OF INVERTEBRATE 

 PALEONTOLOGY IN WAGNER FREE INSTITUTE OF SCIENCE 



PART VI. 

 CONCLUDING THE WORK 



171560 



