94 



CRETACEOUS AND TERTIARY FISH. 



at first slightly convex back till posterior are quite convex. Ver- 

 tical diameter of median teeth about five in horizontal diameter, 

 their surfaces with usually distinct transverse or vertical wrin- 

 kles or nearly smooth. Length (width) 59 mm. 



^^ 



Fig. 48. — Myliobatis obesiis (Leidy). 1-2, Monmouth Co. (Abbott) ; 3-4, 

 New Egypt (Conrad) (type of Myliobates rugosus Leidy) ; *5-6, Farming- 

 dale; 7-8, Pemberton (Budd) ; 9-10, Vincentown (Bryan) (type of Mylio- 

 bates obesus Leidy) ; 11-13, Mullica Hill (Atkinson). 



