SEALS. 29 



times chaffy and callous with wear). Muffle hairy to the 

 edge and between the nostrils. Grinders g|. 



Phocaceerna, 2, part., Nilsson, Sc and. Fauna; Wieqm.Arch.\\i 



317. 

 Phocina, part., Turner, Proc. Zool. Soc. 1848, 88. 



Subfamily 3. Trichechina. Muzzle large, truncated, simple ; 

 canines large ; grinders lobed or truncated when old. 



Cetie, part., Gray, Ann. Phil. 1825, 346. 



Trichechina, Gray, Zool. Erebus fy Terror, 3. 



Trichecina et Phocina, part., Turner, P. Z. S. 1848, 88. 



Trichechidse, Gray, Ann. Phil. 1825, 340. 



Trichehidae sen Campodontia, J. Brookes, Cat. Mus. 37, 1828. 



Les Morses, F. Cuvier, Diet. Sci. Nat. lix. 465 ; Dent. Mam. 233. 



9. HALICHGERUS. 



Muzzle broad, rounded -, cutting teeth f , grinders ~, conical, 

 the hinder two upper and one lower double-rooted, rest simple, 

 canines moderate ; whiskers crenulated ; muffle hairy, becoming 

 baldish with age; palm and soles hairy; claws 5-5, elongate. 

 Palate of skull with a narrow rounded notch behind ; lower edge 

 of lower jaw rounded, not dilated or inflexed in front. 



Fig. 10. 



Halichcerus griseus. Skull. 



