98 Mr. Ball ow the Species of Seals inhabiting the Irish Seas. 



Plate N.—Fig. 14, 15, 16. . Skull of seal taken in Sligo, 1835. 

 Fig, 17. Teeth of ditto, natural size. 



Plate VI. — Fig'. '2l0i,2\. Caecum and great sinus of the hepatic veins of No. 



13, to compare with 18 and 19j the caecum and 

 great sinus of the hepatic veins of No. 2. The 

 animals were very nearly of the same size. 



