Dr. F. A. JENTINK. MAMMALS. I I 



This animal, with Hageni the finest of ail hitherto known Dorcopsis-species, differs i. a. 

 from Mùlleri and luctuosa by having the hairs of the back uniformly coloured to their roots ; 

 its fur is as soft to the touch as that of Hageni, the latter however has a white stripe along 

 the middle of the back; the much smaller Macleayi présents the fur on nape of neck with 

 two centres of irradiation, one on the occiput and one on the withers, is brownish grey above 

 and a little lighter on the ventral side, meamvhile our species has a single but very large 

 centre of radiation, is dark coloured above and white on the ventral side ; rufolateralis seems 

 to be a generally light coloured animal with bright buff under surface, which corresponding 

 parts in Lorentcii are dark on the upperparts and white on the under surface; finally 

 anrantïaca has the very harsh and bristly hair of a bright ruddy orange colour with a golden 

 gloss, meanwhile our species has the very soft fur dark coloured above. 



This well circumscribed species présents no différence between maie and female ; the 

 female however is much smaller, as seems to be the case in ail other Dorcopsis-species. 



At a little distance from behind the shoulders there is a great centre of irradiation ; 

 the forwards directed hairs meet between the ears the upwards directed hairs of the middle 

 of the head, forming a kind of crest of longer hairs running from ear to ear. Just beyond 

 the base of the tail the hairs are very scattered, perhaps the beginning of the naked spot 

 in some other Dorcopsis-species. On the upperparts of the tail the hairs are longer than along 

 the sides and beneath, forming a kind of crest running towards the more or less largely 

 whitish (in life fleshcoloured) bald top of that organ. 



The fur is as soft to the touch as velvet; the colour of the middle of head and of 

 back and upperparts of tail is a glossy black with a sooty brown hue, sides of back less 

 black ; ail the hairs are dark to their roots. Underside of head and throat of a dirty white ; 

 arms greyish brown, hands white haired ; hindfeet sooty brown. Underparts white with a 

 feeble sooty hue ; hairs round genitalia and nates also of a pure white, with a very sharply 

 definite line of démarcation; hairs of scrotum also of a pure white; ail hairs white to the 

 root; the pouch of the female has the hairs of a reddish brown color. A few hairs along 

 the upperparts of the light coloured end of the tail are pure white. 



The skeleton présents the following number of vertebrae : cerv. 7, thorac. 13, with 13 

 ribs, lumb. 6, sacral. 2 and caudal 19. 



Palate-ridges are figured on plate I, fig. 14^; the skull has been partly reproduced 

 by figs. 14b, 14c and 14^, so that thèse parts may allow a careful comparative study with 

 the same parts of D. Hageni, figured in Nova Guinea. Vol. V, Zoologie, plate XVI, fig s . 7, 

 8 and 9. 



13. Phalanger maculatus E. Geoffroy. 



N°. 45. Adult female (in alcohol), Van Weel's Camp, June 2. 1907, 



N°. 65. Adult female (in alcohol), Van Weel's Camp, June 18. 1907, 



N°. 99. Adult female (fiât skin, with skull), Geitenkamp, July 20. 1907, 



N°. 103. Adult maie (alcohol), Alkmaar, July 26. 1907, 



N°. 104. Adult female (flat skin, with skull), Alkmaar, July 31. 1907, 



N°. 120. Adult maie (flat skin, with skull), Aikmaar, August 11. 1907, 



