CHAP. IX.] 



TEETH : PHALAXGERID.E. 



251 



*374. Specimen (var. breviceps $ , Duke of York I.) having in rt. 

 upper jaw p 1 and p\ but no "p 9 ": in left upper jaw there are 

 two teeth of the size and shape of p 1 (Fig. 64, B), one of them 



?\U' \ \ 



M* P 4 P s P' C 



B R 



left profile u 



rig In profile 



right 

 profile 



D 



PnenJotfi irus 

 rt. profile. 



Fig. 64. Dentition of Phalanger orientalis. 



A. P. orientalis, No. 373, having no right "^ 3 ": left ja 1 in front of right p 1 . 



B. P. orientalis, No. 374 : no right "p 3 "; on left, two teeth both like p 1 , in 

 symmetry approximately balancing right p 1 . Below are the right and left profiles 

 of the upper jaws of this skull. 



C. P. orientalis, No. 372. The left side normal, lettered on Thomas's system. 

 Bight side described in text. Below is a profile of right side. 



D. Psendochirus, profile of normal upper teeth from right side enlarged to 

 compare with C. Teeth lettered on Thomas's system. 



being at a level anterior to right p 1 and the other posterior to 

 it (see figures). On neither side is there any tooth having the 



