STEUCTUKE OF JIOOKER'S SEA-LION. 

 Tie. 5. 



373 



Muzzle of Otana juhata. (Front view.) 

 (Two thirdp if the size of nature.) 



Fig. 6. 



Muzzle of Otarui houleri. (Front view.) 

 (Two thirds of the size of nature.) 



VOL. XH. — r.vRT .\. Xo. 4. — April, 1890. 



