HOODED SEAL. 



CARNIYOEA. 

 PINNIPEDIA. 



257 



PHOCIDJ<.. 



Genus Cystophora (Nilsson, 18£0). 



Generic Character. — Male with a large hood on nose, inflatile at will; 

 muzzle hairy. Skull with ossified portion of mesethmoid produced in front 

 of nasals. Teeth, inc. 5, molars | :|, with large roots and compressed plaited 

 crowns. 



HOODED SEAL. 

 Cystophora cristata (Erxleben). 



Specific Character. — Dark grey above, spotted with an even darker shade ; 

 lighter beneath. Length of adult from seven to ten feet. 



Phoca cristata, 



,, le(yiiina, 



,, mitrata, 

 Cystophora cristata, 

 Stemmatopus cristattis, 



Ekxleben, Syst. Reg. An., 590 (1777). 



Fabbicius, Fauna Groenl. (nee. Linn.) 1790. 



Cdvier, Ossem. Foss. V. 210. 



Nilssoif, Skand. Fauna (1820). 



F. CuviEE, Diet. Sc. Nat., XXXIX. (1826). 



Neitersoah of Gfreenlanders, Klapmyds of Danes, Bladder-nose of Sealers. 



This genus diiFers strikingly from the rest of the 

 family, both in its external and osteological characters. 

 The nasal aperture of the skull is much expanded, and 



