by n. de miklouiio-maclay. 571 



Measurements : — 



From tip of nose to base of tail 400 Mm. or about26 - 2 in. 



Tail 270 „ — „ 15-8 „ 



From tip of nose to occiput 96 ,, — ,, 3-8 „ 



Fore limb 180 „ — „ 7*1 „ 



From caput humeri to elbow 62 ,, — „ 2*4 ,, 



From elbow to wrist 78 „ — „ 3T „ 



From wrist to end of nail middle finger 40 „ — ,, T6 „ 



Hind limb 3S5 „ — „ 15-2 „ 



From Trochanter to knee Ill ,, — )} 4 - 4 „ 



From knee to ankle 142 „ — „ 5-6 „ 



From heel to end of nail of fourth toe 132 „ — ,, 5*2 „ 



Length of ear (from behind) 49 ,. — „ 1*9 ,. 



Circumference of base of tail 52 „ — ,, 2T „ 



Colour. — Back dark grey, with a silvery tinge on the neck and 

 shoulders. Fur short, soft, white on the roots. (1) Chin, throat 

 and chest light grey. Feet dark, covered with shorter hair than 

 on the back. The arms light grey inside, and of the general colour 

 of the body outside. 



The peculiar direction of the hair on the neck, which occurs in 

 DorcojJsis luctuosi exists in D. Chalmersii and may be described 

 just as Garrod (2) does it, in D. luctuosa and others, namely : — 



(1.) The hair on the back is from 26-2S mm. (about 1 inch long.) Each 

 hair is whitish on the base for § of its length, and black for the next ^, with 

 a white tip (1 mm.) on the end, which tip however, could not be distin- 

 guished in many hairs. The hair of the tail about 12 mm. long, is black, 

 nearly the whole length. On the arms, as well as on the head, where it is 

 6-8 mm. long, the hair was whitish on roots for 2 or 3 mm. The black 

 portion of the hair is also the thickest. The light hair on the chest is about 

 13 mm. long. 



(2) Gar rod. (Loc. cit. p. 51) mentions, that this peculiarity in the direc- 

 tion of the hair of the neck has been found in Dendrolagus ursinus, Dtndro- 

 lagus inustus, Dorcopsis Muelleri and Dorcopais luctuosa. To this number 

 Dendrolagus Dorianus. (Vide: E. P. Ramsay. Contributions to the 

 Zoology of New Guinea. Proceedings of the Linnean Society of New South 

 Wales, Vol. VIII., p. 15), may be added as well as Osphranter rufus. The 

 occurrence of this peculiarity in the last named species, I have observed in 

 a very fine specimen of O. rufus in the Macleay- Museum (rf, 5 feet from the 

 tip of the nose to the base of the tail, and the tail 3 feet 3 inches long), 



