POST-PLEIOCENE FOSSILS. 



SOUTH-CAROLINA. 



PLATE IV. 



ARCADE. 



Fig. 1. ARCA INCOXGRUA. Page 19. 

 la. Yiow of hinge and beaks. 



2. ARCA AMERICANA. Page 19. 

 2a. End view. 



3. ARCA LIEXOSA. Page 20. 

 3a. View of hinge. 



4. ARCA PONDEROSA. Page 21. 

 4a. View of hinge. 



5. ARCA TRANSVERSA. Page 21. 



5a. View of hinge. 

 0. ARCA C.ELATA. 



6a. View of hinsre. 



Page 



'yA 



