ON MAMMALS FROM NEW GUINEA. 733 



27. f Dorcopsis vanheurni, Thos. 



11, and its young, 13; 16, and its young, 14. Doormanpad-bivak 1410 m. 20 and 26 October 

 igio. W. C. van Heurn. 



x^llied to D. macleayi, but smaller and with softer fur. 



Size, judging by skull, slightly less than in macleayi. Fur exceedingly soft and silky; 

 much longer than in macleayi, hairs of hinder back about 26 — 27 mm. in length, of nape 

 19 —20. Above, the hairs are directed forwards from the withers to the crovvn, and below 

 there is an indication of hair-whorls on each side of the inguinal région. General colour above 

 dark grey-brown, about as in macleayi, but appearing glossier, from the fineness of the fur. 

 Below smoky brown, the throat dull blackish. Hands and feet uniformly dark brown above. 

 Tail with the terminal two fifths naked, the furry basai part brown above, greyer below, 

 with, as in macleayi, a small reddish brown patch on it about three inches from the anus, 

 probably of glandular origin. Skull of slightly more délicate build than in macleayi, but essen- 

 tially similar. Teeth smaller than in macleayi throughout, the large secator narrower. 



Dimensions of the type, measured in the flesh: 



Head and body 390 mm.; tail 300; hindfoot (dry) 100; ear 35. 



Skull, greatest length 82; basai length Ji; zygomatic breadth 42; nasals 33X12; 

 interorbital breadth* 16; front of secator to back of last molar 27.2; secator 9.2; three ante- 

 rior molariform teeth 13.2. 



Hab. North-west New Guinea in région of Mamberamo River; type from Doormanpad 

 14.10 m. 



Type. Adult female. B. M. N°. 22. 2. 2. 65. Original number 16. Collected 26 October 

 1920 by W, C. van Heurn. 



This distinct species is alotie related to the little D. macleayi of S. E. New Guinea, 

 from which it is readily distinguished by its finer fur and smaller teeth. I hâve named it in 

 honour of Mr. W. C. VAN HEURN, who made the valuable collection of mammals from the 

 Mamberamo River which forms the main basis of the présent paper. 



„Caught in snares in thick mossy jungle. Each had a young one with it. The flesh 

 tasted excellent." W. C. VAN HEURN. 



28. DistaeclmriLs pennatus, Pet. 

 çf 85. North New Guinea. 



Very much discoloured by bleaching. 



29. Petaurus breviceps papuanus, Thos. 



90. Bosnik, Schouten Island, N. W. New Guinea. 

 2 in al. (X. XI). South New Guinea. Hassan. 



30. Dactylopsila trivirgata, Gray. 



çf 15. Between the Doorman River and Doormanpad-bivak, 26 October 1920, W. C. v. Heurn. 

 Tail with an unusual amount of whitish down its sides, more as in many spécimens 

 of melampus. 



