PLEIOCENE FOSSILS. 



PLATE VI. 



OSTRACIDJl.-ANOMIDJ;. 



OSTRACIDiE. 



Fig. 1. OSTBEA EAYENELIANA. Upper view of fossil shell, natural size, showing the 

 inequivalves. Page 21. 

 " 2. Lower valve, natural size. 

 " 3. Side view of the fossil. 



ANOMIDiE. 



Fig. i. PLACUNANOMIA PLICATA. Upper valve, natural size. Page 19. 

 " 5. Interior of lower valve, showing the costal ribs of the hinge, the muscular impression, 



and the perforation for the passage of the organ of attachment. 

 " 6. Side view of the fossil, natural size, showing the plicated margin. 



