PLEIOCENE FOSSILS. 



Fig. 1. 



" 2. 



" 3. 



" 4. 



" 5. 



« 6. 



10. 



Fig. 11. 



" 12. 



" 13. 



" 14. 



PLATE VH. 



CHAMACIDJ].-PECTENID^. 



CHAMACIDJ]. 



CHAMA CORTICOSA. Lower valve, natural size. Page 22. 



View of fossil from above. 



Side view of the same. 



CHAMA AKCINELLA. Side view. Page 22. 



View of interior of lower valve. 



View of lower valve. 



CHAMA CONGKEGATA. Upper view, natural size. Page 23. 



Side view of the same. 



Interior of lower valve. 



Interior of upper valve. 



P E C T E N I D M . 



PLICATULA MAKGLNATA. Upper view of fossil, natural size. 



Side view of the same. 



Front view of the same, pallial margin. 



Interior of both valves. 



Page 24. 



