Mammals from Britiah New Guinea. 401 



Skull: greatest length 51*5 ; basilar length 4o'l ; greatest 

 breadth 25*7 ; nasals 19"5 x 7 ; interorbital breadth 8-2 ; 

 interparietal 8x12; palate length 21"4 ; diastema 14 j 

 palatal foramina 7'2 ; length of upper molar series 10"3. 



Hah. and Type. As above. 



This fine species appears to be a giant member of the 

 U. Bruijnii group, and to have no relationship to the long- 

 tailed forms which it approaches in size. 



When U. sapientis was described more emphasis should 

 have been laid on the unusual size of the bullre, which tar 

 exceed those of either the large U. macropus and its allies or 

 the small U. Bnnjnii. In U. p or cuius they are of the usual 

 minute size. 



Pogonomys Forhesi^ Thos. 



c?. 14; $.13; and two young. 



These are the first specimens of this interesting species 

 that we have received as skins, the previous ones having 

 been prepared from spirit-examples. 



Petaurus hreviceps papuanus^ Thos. 



? . 11, 18. 

 " Native name ' Kaioyo.' "— C. A. W. M. 



Dactylopsila trivirgata^ Gray. 

 $. 1. 



Pseudochirus canesce7is gyrator, subsp. n. 



cj . 46. Lindum Creek, Gira River District. Coll. "W. 

 Stalker. 



Size smaller than in the typical form from N.W. New 

 Guinea. Colour very much as in the figure of " Phalangista 

 {Pseudochirus^ Beriisteini" given by Peters and Doria *, the 

 general colour similarly greyish, the head, arms from elbows, 

 hands, and feet buffy. Under surface buff, the hairs with 

 scarcely a trace of slaty at their bases ; an indistinct patch 

 on the throat whiter. Frontal line blacii, sharply defined, 

 extending from in front of the anterior corners of the eyes 

 to between the ears, fading off on the nape and back into a 

 vague darker dorsal area rather more than an inch in breadth. 

 Back of ears and a patch below and behind their bases 

 blackish brown. Tail broad proximally, evenly tapering, 

 brownish grey like the body for two thirds its length, then 



* Ann. Mus. Genov. xvi. pi. xii. (1S80). 



