3. oiiMAToriTorA. 



13 



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

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

 Erebus and Terror.' 



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

 by Capt. Fitzroy. 

 Skull of specimen a. 



e. Skull, lliver Santa Cruz, east coast of Patagonia. Presented by 



Capt. Fitzroy. 

 Skull of specimen h. 



f. Skull. Antarctic Seas. Antarctic Expedition. Presented by the 



Lords of the Admiralty. — The skull figured in ' Zool. Erebus and 

 Terror,' t. 



g. Skull. Antarctic Seas. Antarctic Expedition. Presented by the 



Lords of the Admiralty. 



3. OMMATOPHOCA. 



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

 very large ; grinders smaU, compressed, mth a central incurved lobe, 

 and a small lobe on each side of it ; fore feet very slightly 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 tip. 

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

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



Fig. 4. 



Oniinatoj)hoca 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 all with two diverging roots to the crown. 



