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. 
Ph. jubata, Gm.; 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. ursina, Gm.; Buff. Supp. VI, xlvii. (Lhe 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 phoque noir of Buffon(Ph. pusilia), Buff. XIII, 
lili; the Vellow Seal of Shaw, &c. 
Tricnecuus, Lin.(1) 
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 reié (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. 
Vou. I.—Q 
