On a Collection of Mammals from Central and Northern Queensland. 911 



Occurs throughout the whole of QueeDsland, and is the most 

 numerous of the Phalangers. 

 The skull: 



Length B. 76 mm, C. 78 mm, D. 78 mm, E. 84 mm 

 Breadth „ 46 „ „ 47 „ „ 48 „ „ 51 „ 

 Of these skulls, three belong to ratber young, one to a quite 

 old iiidividual, and exhibit a great difiference in the course of the 

 sagittal crest, without its always being dependent on the age of the 

 individual. 



In the oldest individual (E) and one of the younger ones (C) the 

 forehead is deeply concave, and the orbital crests join the high sa- 

 gittal crest just behind the orbitae ; in the other specimens the space 

 betweeu the frontal crests is shallower, and these first unite into a 

 sagittal crest a short way in front of the crista lambdoidea, or just 

 between the ear-openings. 



Bullae osseae, but slightly indicated in two of the specimens. In 

 the rest they are quite distinct, although not very high. The fora- 

 mina palatina are in all very broad, and limited behind by a bridge 

 of bone, not much thicker than a hair. 



The teeth: The dental formula in its typical stateis: i f , c |, 



^ I, m f (38), the functional premolars being ^ ^ Thedentition 



is, however, not complete in any of the present specimens, as always one 

 or another of the foremost premolars in the lower jaw is wanting. In D 



only »2 is wanting, so that the number of teeth is 36 \— — — — j. 



in A und B both the foremost premolars are wanting on each side below 



1 ^ 1 in C these two are only wanting on one side, whilst on 



the other p i is present. 



PÄ. vulpecula is at once distinguished by the shape and position 

 of the first premolar in both jaws. It is comparatively large, nearly 

 as large as w i , and has a considerable portion of the outer side of 

 the neck uncovered by the alveolar margin; it is besides directed 

 obliquely outwards, by which its position is entirely different from the 

 row of the molars. 



As has already been stated by Mr. Thomas (in : Encycl. Brit. vol. IX, 

 p. 728), the canine in the upper jaw is placed before the intermaxil- 

 lary suture (whilst its root naturally lies in the upper jaw). In one 



Zool. Jahrb. II. c o 



