904 ROBERT COLLETT, 



Clavicula 40 mm 



Scapula to encl of processus coracoideus .... 76 „ 



Os ilii from centre of acetabulum 83 „ 



Os marsupiale 54 „ 



Humerus 105 „ 



Radius 113 „ 



Ulna 124 „ 



The hand to end of longest claw 85 „ 



Femur 142 „ 



Tibia 142 „ 



The foot to end of longest claw 143 „ 



Metatarsus digiti IV 45 „ 



CoraparisonwiththeotherDendrolagi. 



As the Christiania University Museum does not possess skulls 

 or portions of skeletons of the two described species from New Guinea, 

 no thorough comparison can be made between them and D. lumholtsi. 

 In the autumn of 1886, through the kindness of Mr. Oldfield Tho- 

 mas, I had, however, an opportunity of seeing a skull of D. ursinus^ 

 preserved in the British Museum ; but the following remarks concern- 

 ing D. inustus only refer to Müller's figure in his original descrip- 

 tion of the species (in 1839—44), pl. 23 and 24 ^). 



I shall therefore point out, in what respects the structure of the 

 skull differs in the 3 species. As yet no descriptions of the two other 

 Dendrolagi are accessible to me. 



D. ursinus. The nasalia are less contracted in the middle, their 

 breadth behind is not twice as great as in front. The suture with 

 the frontalia forms a somewhat transverse hne, each nasale with a 

 slight angle (open forwards). The apex of the nasalia does not extend 

 to the front margin of the intermaxillary. 



The frontalia are not inflated in the middle, and the forehead is 

 almost equally broad anteriorly. Traces exist of a postorbital process. 



The palatina are thin, and partially or unevenly perforated. 



The intermaxillary is comparatively narrow, and almost equally 

 1) r a d every where, as it is not perceptibly broader above, than below 

 or in the middle. This jaw has therefore the appearance of being more 



1) The skulls of the two species, drawn hy Mülleb, have each a 

 length of about 170 mm, but have the innermost molar not yet deve- 

 loped, besides which p ^ and the milk premolar are still functionary. 



