i 
296 Mr. Anvre’s Defeription of the 
articular furface, for their connection with a fimilar furface on 
the pofterior extremities of the lower 7 jaw ; and on their ante- 
rior ends there are two rows of teeth.. The external row con- 
fifts of three or four fharp or conical teeth; and the internal 
sow of four or five blunt and rather flat ones. Thefe bones are 
connected to the palate and bones of the nofe by loofe. but 
{trong ligaments. 7 
The third bone of the upper jaw, which may be called bg 
anterior or nafal portion, ‘is of a triangular form, conneéted 
above to the bones of the nofe, and ending below in a flat fur- 
face, thick-{et with fharp conical teeth. ‘The external teeth, 
about four in number, are lar ge and ftrong, and bend a little 
inwards ; but the internal ones are fmall, and nearly ftraight, 
of which we may reckon about ten. 
This bone is connected above (as I have before obferved) to 
the bones of the nofe; between which a complete joint is 
formed, of that kind called by anatomifts gimglymus, that is, 
where the projecting parts of one bone are received by cor- 
refponding cavities in the other. Like other articulations, it’ is» 
furnifhed with a capfular ligament, and no doubt an apparatus 
for the fecretion of /ynovia. Although a joint exifts between 
this bone, and thofe of the nofe, yet no mufcles are provided 
for its motion, which depends entirely upon the refiftance made 
by thofe hard bodies which the animal takes into its mouth. 
The lower jaw (D) confifts of two bones, united at their 
fore-parts by a ftrong ligament, which allows of fome motion. 
On their anterior extremities are placed fix large and as many 
{mall fharp and conical teeth; the large teeth are placed exter- 
nally, and their points are bent a little mwards; while the 
{mall ones, which ftand within them, are nearly ftraight. 
Behind thefe are two or three rows of grinder teeth. The 
I external 
