SKULL. 747 



same, of which it may be considered as a magnified type. It is 

 somewhat arched above, the region of greatest convexity being 

 at the orbits. The facial portion is abruptly narrowed and 

 somewhat produced, the width of the skull at the base of the 

 malar process of the maxillaries being nearly twice as great as 



FIG. 60. Macrorhirius augustirostris. No. 4704, Nat. Mus. ; i nat. size. 



at the canines. The following measurements of two examples 

 will serve to indicate its general proportions. One is marked 

 as female, but whether either is full-grown is not known. For 

 purposes of comparison the same tabfe contains measurements 

 of two old male skulls of the Sea Elephant of the Southern Seas. 



