Mammals from the East Indian Archipelago. 255 



Skull : greatest lengfh 14*2 ; basi-sinual length 10*2 ; 

 breadth of brain-case 7*4; front of canine to back of m^ 4*8. 



Hah. Nias Island, W. of Sumatra. 



Type. Adult male. B.M. no. 23. 1. 2. 28. Current 

 number 173. Collected by Mr. Kleiweg de Zwaan. Two 

 specimens. 



Tiipaia glis phoeniura, subsp. n. 



General characters of Sumatran T. g. ferriiginea, but the 

 terminal half of the tail not greyish, as in ferruginea, nor 

 abruptly creamy white, as in demissa, but gradually passing 

 into orange-rufous, so far as the basal halves of the hairs are 

 concerned. Ends of tail-hairs with a black subterminal ring 

 and pale rufous tip. Underside of terminal part of tail clear 

 bright orange-rufous, just edged with the darker tips of the 

 hairs. 



Body and limbs generally closely matching those of 

 T. g. demissa^ with the same darkening on the posterior back. 

 Hairs of under surface grey-based_, with bufFy or ochraceous 

 tips. 



The type is youngs its dimensions being : — 



Head and body 134 mm. ; tail 133 ; hind foot 40. 



Skull : greatest length 42. 



Hah. Deli, Sumatra. 



Type. Immature female (skinned out of spirit). B.M. no. 

 23. 1. 2. 30. Current number 310. Collected by Dr. L. P. 

 de Bussy. Two specimens examined. 



In 1904 I described as Tupaia ferruginea demissa a tree- 

 shrew from Lower Langkat, in the same part of Sumatra but 

 at a lower level. That animal was characterized by the 

 terminal part of the tail being abruptly contrasted creamy 

 white, and its original collector obtained no less than forty- 

 six specimens showing this peculiar coloration. 



Dr. Lyon, in his ' Monograph of Tupaiidae/ considered it a 

 separate specicKS on the ground that no intermediate specimens 

 between it and glis ferruginea were known. Now, however, 

 by its graduated rufous-ended tail, the present form may be 

 considered as an intermediate between demissa and ferruginea^ 

 and I should therefore still retain the terminology 1 originally 

 used for the creamy-tailed form. 



In all probability this, and not detnissa, was the Deli 

 animal referred to by Jentink as T. ferruginea chrysura in 

 1888. 



