3. oMMATornooA. 



18 



/ 



Skin : stuffed : small. Antarctic Sea. Presented by the Lords 



of the Admiralty. — Specimen described and figured in ' Zool. 



Erebus and Terror.' 

 Skull. River Santa Cruz, cast coast of Patagonia. Presented 



by Capt. Fitzroy. 

 Skull of specimen a. 

 Skull. River Santa Cruz, east coast of Patagonia. Presented liy 



Capt. Fitzroy. 

 Skull of specimen h. 

 Skull. Antarctic Seas. Antarctic Expedition. Presented by the 



Lords of the Admiralty. — The skull figiu-ed in ' Zool. Erebus and 



Terror,' t. 

 Skull, xintarctic Seas. Antarctic Expedition. Presented by the 



Lords of the Admiralty. 



3. OMMATOPHOCA. 



Skull broad, depressed behind ; muzzle very short, broad ; orbits 

 very large ; grinders small, compressed, with a central incurved lobe, 

 and a small lobe on each side of it ; fore feet very sKghtly clawed. 



Head short, broad ; ears small, with no internal conch ; muzzle very 

 short, rounded ; muffle hairy between and to the edge of the nostrils ; 

 nostrils ovate ; whiskers tapering, conical. Skull depressed, expanded 

 behind ; orbits very large ; nose very short, broad, truncated in front, 

 high behind ; petrose portion of the temporal bone convex. 



Cutting-teeth ^, small, conical, sharply recurved at the tij). 

 Grinders small, compressed, with a subcentral, rather large, broad, 

 slightly incurved lobe, having a very small lobe on the inner side of 



Fig-. 4. 



Oinmatophoca Rossii. Skull and hinder grinders. 



its front, and a larger conical one in the middle of its hinder edge ; 

 the front grinder of each jaw is smaller and thicker, with a single 

 conical root, the rest aU with two diverging roots to the crown. 



