3. OMMATOPHOCA. 



13 



/• 



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



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



Erebus and Terror.' 

 SkuU. Eiver Santa Cruz, east coast of Patagonia. Presented 



by Capt. Fitzroy. 

 SkuU of specimen a. 

 Skull. Eiver Santa Cruz, east coast of Patagonia. Presented by 



Capt. Fitzroy. 

 Skull of specimen b. 

 Skull. Antarctic Seas. Antarctic Expedition. Presented by the 



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



Terror,' t. . 

 SkuU. Antarctic Seas. Antarctic Expedition. Presented by the 



Lords of the Admiralty. 



3. OMMATOPHOCA. 



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

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

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



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

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

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

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

 high behind ; petrose portion of the temporal bone convex. 



Cutting-teeth -J, smaU, conical, sharply recurved at the tip. 

 Grinders smaU, compressed, vsdth a subcentral, rather large, broad, 

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



Fig. 4. 



Qmmatophoca 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 smaUer and thicker, with a single 

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



