CARNARIA. 121 



known in any animal ; the external ones are simple and smaller, and 

 the four inferior bifurcated. All the molars are simply conical, and 

 the toes of the fore feet almost immovable; the membrane of the 

 hind feet is lengthened out into a slip beyond each toe ; all the nails 

 are flat and slender. 



Fh. juhata, Gm.j Sea-Lion of Steller, Pernetty, &c.; Buff. 

 Supp. VII, xlviii. From fifteen to twenty feet, and more, in 

 length ; fawn coloured ; the neck of the male covered with hairs 

 that are more frizzled and thickly set than those on the rest of 

 the body. It might be said to be found in all the Pacific Ocean, 

 were it not that those from the straits of Magellan seem to dif- 

 fer from such as are taken at the Aleutian islands. 



Ph. ursma, Gm.; Buff. Supp. VII, xlvii. (The Sea Bear.) 

 Eight feet long, no mane, varying from brown to whitish. 

 From the north of the Pacific Ocean. Other Seals are found in 

 that sea which only differ from the ursina in size and colour : 

 such is the Petit pho que noir of Buffon (Ph. pusilla). Buff. XIII, 

 liii ; the Fellow Seal of Shaw, Sec. 



TrichechuSj Lin.(l) 



The Morse resembles the Seal in its limbs, and the general form of 

 the body, but differs widely from it in the teeth and head. There 

 are no incisors nor canini in the lower jaw, which is compressed an- 

 teriorly to pass between two enormous canini or tusks, which issue 

 from the upper one, and which project downwards, being sometimes 

 two feet long, and of a proportionable thickness. The enormous 

 size of the alveoli, requisite for holding such tremendous canini, 

 raises up the whole front of the upper jaw, giving it the shape of a 

 huge inflated jowl, the nostrils looking upwards, and not terminat- 

 ing the muzzle. The molars are all short, obliquely truncated 

 cylinders ; there are four of them on each side, above and below, 

 but, at a particular age, two of the upper ones fall out. Between 

 the canini are two incisors, similar to the molars, which most authors 

 have not recognised as such, although they are implanted in the 

 intermaxillary bone. Between these again, in the young animal, 

 are two more small pointed ones. 



The stomach and intestines of the Morse are very similar to those 



of the Seal. It appears that the fucus constitutes part of its food, 



along with animal matters. One species only is as yet ascertained, the 



Trich. rosmarus, L. ;(2) Buff. XIII, liv; and better. Cook, 



( 1 ) Trichechus, from Tg*| (hair), a name invented by Artedi for the Sea Cow. 



(2) Shaw, however, suspects that there may be two distinguished by the greater 

 or less size of their trunks, and by their being more or less convergent. 



Vol. I. Q 



