258 
PriASCOLARCTUS. 
Phalangista ,, in which the tail is long and prehensile; and, 
lastly, the genus Petaurus , in which the tail does not possess 
the power of grasping objects. The Pctauri , moreover, may 
he recognised hy their possessing a loose membrane extended 
from, and filling up, the space between the fore and hind legs. 
Other differences observable in the species of these sections 
are pointed out in their proper places. 
PHASCOLARCTUS. 
P/iascolarctos. Dk Blainville, Prod, d’unc nouv. Distrib. System, da 
Rcgnc Anim.; Bullet, de la Soc. Philom. de Paris, 
p. 108. 181G. 
Lipurtis. Goldpuss, in Isis, p. 271. 1819. 
Teeth. —Incisors, ^ ; canines, ^ ; premolars, ^ ; true molars, 
4 _| 
— = 30. Posterior upper incisors and canines small; true 
molars, each with the crown divided into four pyramidal 
tubercles. 
Body , stout. 
Head moderate, the facial portion very short; muffle naked; cars 
moderate, clothed with long hairs. 
Fore feet with two inner toes, which are considerably shorter than 
the others, slightly opposeablc to the remaining three, of 
which three, the central one is the longest: the nails of all the 
toes long, curved, very deep, and much compressed. 
Hind feet with the first toe, or thumb, very far hack, large, very 
broad, and uailless; the second and third, united toes, con- 
molars of the upper jaw, and between the incisors and the corresponding teeth 
in the lower jaw. These characters, combined, 1 think indicate that 1 hare 
properly located the Wombat in the tabular view of mv arrangement of the 
Marsupial uuimals, given in p. 12, in which I have endeavoured so to place 
the several genera, that those which have the most characters in common, are 
most nearly approximated. 
