PHOCIDJE. 7 



double-rooted, the rest simple ; canines moderate ; whiskers crenu- 

 lated; muffle hairy; palm and soles hairy; claws 5-5, elongate. 



12. Tbichechus. Muzzle yery broad, truncated, swollen and convex 



above ; muffle, palm, and soles chafly, callous, with the hair more or 

 less wom_ off in the adult (hairy when young ?) ; cutting-teeth a in 

 youth, f in adult ; grinders 4-4, truncated, all single-rooted ; canmes 

 of upper jaw very large, exserted. 



** Muzzle of the malemth adilatUe appendage; cutting-teeth^; grinders 

 with a large swollen, root amd a small, compressed, simple, plaited 

 croton ; muffle hairy. Cystophorina. 



13. MoBUNaA. Nose transversely wrinkled above, exsertile ; muzzle of 



theskullbroad, truncated in front; forehead convex ; hinder palatine 

 bone short, transverse ; hair flat, truncated, close-pressed ; whiskers 

 round, rather waved, thick ; front claws obsolete ; crown of grinders 

 finely plaited. 



14. Cystophoba. Nose of male with a large compressed hood extending 

 to the back of the head ; muzzle very broad, hairy ; nostrils large ; 

 muzzle of skuU broad, narrowed on each side in front ; forehead flat ; 

 palatine bone broad, square ; hair elongate, cylindrical ; whiskers flat, 

 waved ; claws 5'5, distinct ; crown of grinders strongly wrinkled. 



d. Ears with a svbcylindrical distinct eocternal conch ; toes of the hind 

 feet subeqiud, short, with long memhranaceoiis flaps at the end; fore 

 feet fin-Uke ; palm and soles bald, longitifdinaUy grooved ; nose simple, 

 mth a rather large calloits muffle above and between the nostrils ; 



cutting-teeth f, upper often bifid; grinders ^. Arctocephalina. 



15. Callobhinus. Cutting-teeth subequal; face of skuU short; fore- 

 head convex, regularly rounded from the end of the nasal bone to 

 the middle of the vertex ; nasal opening small ; palate rather concave, 

 contracted behind, short, nearly reaching the middle of the zygomatic 

 arch ; lower jaw short, thick, flattened, expanded beneath just in 

 fi'ont of the condyle. 



16. AncTOCEPHAi/irs. Cutting-teeth subequal; face of skull elongate; 



forehead flattened, and nearly horizontal from the nasal bone to the 

 vertex ; nasal opening large, high ; palate rather narrower behind than 

 in front, rather concave, short, not reaching behind the middle of the 

 zygomatic arch ; lower jaw narrow, with a crest-like ridge behind, 

 beneath, just in front of the condyle. 



17. Otabia. Muzzle broad, high in front ; forehead rather convex ; 

 occiput high ; cutting-teeth f , upper and outer one very large, like 

 canmes; grinders of adult with very large roots and small, com- 

 pressed, lobed crown ; palate-bone rather wider behind than in front, 

 long, extending nearly to the articulation of the jaws behind; lower 

 jaw broad, dilated in front and behind at the angle ; upper jaw elon- 

 gate, and dilate with age. 



