420 Analytical Notices of Books. 



largest, and on its inner part two tubercles, very distinct frotrf 

 each other, and much less elevated than the outer ones, the pos- 

 terior being larger than the anterior ; the third, is a second true 

 molar, larger than the preceding one, from which it differs only inr 

 its two internal tubercles being of equal size ; and in a third being 

 developed at their base. In the lower jaw, alntost adjoining the 

 canine tooth, is a false normal molar; which is succeeded by a 

 true molar composed of a small anterior tubercle, of a very large 

 middle one, which is much thicker on the faces of the tooth than 

 in its middle, and of a posterior crest, which is more elevated to- 

 wards the external than the internal surface of the jaw, and forms 

 a portion of a circle. 



This dentary system appears to approach more nearly to that of 

 the Racoons than to any other genus of the Mammalia. In the 

 upper jaw the incisors and canine teeth of the Panda correspond 

 precisely with those of the Racoons ; and the first true molar 

 diflfefs only in having in the latter the anterior internal tubercle 

 largest instead of the posterior. The remaining teeth are however 

 very distinct. The Racoon possesses three false molar teeth in- 

 stead of one; and its second true molar has a totally different 

 structure, its tubercles being obtuse and resembling those of the 

 Bears, while in the Panda they are distant and acute, and similar 

 to the true molar teeth of the insectivorous Mammalia. In the 

 lower jaw the differences are analogous. The Panda possesses 

 only one false molar instead of three ; and its true molars can 

 only be reconciled to those of the Racoons by dividing, in imagi- 

 nation, the middle tubercle which is, as has been noticed, thinner 

 in its central part, and also dividing the posterior crest, so as to 

 form of each two tubercles. 



The jaws not being entire behind, the absolute number of mo- 

 lar teeth in the Panda cannot be determined except from analogy. 

 No carnivorous quadruped possesses more than three true molar 

 teeth on each side ; and that the Panda has this number is evi- 

 dent from the remains of the roots of a third true molar in the 

 lower jaw. From these it is plain that this tooth was very large, 

 and the corresponding one, which is wanting in the upper jaw, 

 no doubt agreed with it in size. In their tubercles these deficient 



