204 SPECIMENS OF PINNIPEDIA. 



(1) OmMATOPHOCA ROSSI. (Om. R.) 



(Ross's Seal, Antarctic Ocean.) 



(The only species.) 



Ommatophoca rossii, Gray. Zool. Voy. Erebus and Terror, 

 1844. 



1. Skeleton oi" adult male, No. 43 in the collection of the 

 Scottish National Antarctic Expedition. It is de- 

 scribed by Dr Rt. B. Thomson in Trans. Roy. Soc. 

 Edin , vol. xlvii., part i., 1909. The animal was 

 captured in February 1904. Thomson gives the 

 following dimensions: — Length 2 feet 11^ inches, 

 girth 1 foot 10^ inches, weight 400 lbs. Vertebral 

 formula C^Dj^L^^SgCdjo = 40. Skull short and broad ; 

 length 9 1 inches, over vertex 12 inches; breadth, 

 zygomatic 7^ inches, cranial 4i inches. A persistent 

 hole in region of anterior fontanelle, see figure below 

 and figure 1 in Thomson's Memoir. Hard palate 3 

 inches long by 3 in greatest width. Mandible 7 inches 

 long. Teeth feeble. Dr E. A. Wilson states that 

 the food consists mainly of cephalopods (Nat. Hist, of 

 Antarctic Expedition). Donor — Dr W. S. Bruce. 



Skull of adult female. No. 2 of Scottish National Antarctic 

 Expedition. Animal captured February 1903. See 

 Thomson's memoir. Leno^th 2 feet Hi inches, girth 

 1 foot 9A inches, weio-ht between 450 and 500 lbs. 



