58 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 76 



PLATE 2 



Comparison between the skull of a young fox, fig. i, and that ot a young 

 sea-lion, fig. 2 ; lateral aspect. Each skull has been photographed twice, from 

 slightly diflferent angles. The maxillary and occipital are disarticulated to 

 show their differing mechanical relationships with the frontal and parietal 

 respectively. In the fox the maxillary broadly overlies the frontal in the 

 region of contact ; the occipital and parietal are opposed. In the sea-lion the 

 occipital broadly overlies the parietal in the region of contact ; the maxillary 

 and frontal are interlocked. 



Fig. I. Vulpes. , No. 1 76017, U. S. Nat. Mus. 



Fig. 2. Euinetopias. No. 151534, U. S. Nat. Mus. 



