1910. 



VARIATION OF THE SEA-ELEPHANTS- 



587 



beautiful series (conf. the table of measurements) in full corre- 

 spondence with the size of the skull, and that is the width of the 

 occipital condyles compared with the basal length of the skull. 



Text-fig. 56. 



A 



8 



Outline of the nasals of four specimens of the Sea-Elephant from 

 South Georgia. 



This percentage decreases regularly and gradually from the skull 

 of the quite young animal to that of the oldest bull. Considering 

 this fact, it is perhaps of importance that Lydekker states that the 



