CHAP. IX.] 



TEETH I PHALANGEEID^E. 



253 



positions of the intermediate teeth are most various, sometimes they are evenly 

 spaced out between p 1 and p 4 , but sometimes they are crowded together. The 

 teeth in corresponding ordinal positions do not always stand at the same levels 

 on the two sides. 



* 



377. Phalanger maculatus: in this species the small premolar ("£> 3 ") between upper 

 p 1 and p 4 is generally absent, and in the lower jaw there are usually only two 

 "intermediate" teeth. The following table shews the variations seen in 58 skulls 

 and 7 lower jaws wanting skulls (including 43 1 Leyden skulls described by 

 Jentink, I. c). 



1 Not including the case, Leyd. Mm., 153 (Jentink, I.e., p. 91), in which the 

 "small" upper premolar is stated to be absent as an abnormality. As p 3 is usually 

 absent in the species, probably this refers to p 1 . 



