SMALL MAMMALS COLLECTED IN TIBET. 231 



Hah. — I-chang, Yang-tze kiang. 



Type.—kdixxlt male. B. M. No. 95. 7.5.1. Presented by Mr. F 

 W. Styan. Nine specimens examined. 



It is to Mr. F. W. Styan's generosity that the Museum owes not 

 only its whole series of T. mordax from I-chang, but also the [single 

 specimen from " Peking " representing T. xanthipes. The latter 

 agrees absolutely in size with the figures given by Milne-Edwards. 



This is the Trogo'pterus of the Upper Yang-tze Valley and Sze- 

 chwan, the original T. xanthines having been obtained in Ohihli, N. 

 China by Fontanier, and being represented in the British Museum 

 by a skin and skull from " Peking." 



Two skins from the Upper Min Valley, Sze-chwan, obtained by 

 Mr. J. W. Brooke are also referable to T. mordax. 



The Chumbi Trogo^pterus has the long feet of T. mordax, but its 

 skull is little or not larger than in T. xanthipes. It may be 

 diagnosed as follows : — 



Tkogopterus himalaicus, sp. n. 



Feet as long as in T. mordax. Fur thicker. General colour 

 essentially similar but rather darker. Sides of muzzle and region at 

 outer bases of ears grey like rest of head, not fulvous. Hands and 

 feet brown, with fulvous end to the hairs, instead of wholly fulvous. 

 Tail very thick and bushy, the hairs slaty for their basal three-fifth, 

 then black and their tips buffy ; but below there are no buffy tips, the 

 terminal two-fifths of the hairs being deep black. 



Skull of the type immature, but sufficiently grown to show that it 

 would scarcely have attained a greater size than in T. xanthines. 



Dimensions of the tj^pe, measured in the flesh : — 



Head and body 210 mm. ; tail 233 ; hindfoot 57 ; ear 32. 



Skull, greatest length 56-5 ; condylo-incisive length 51 ; nasals- 

 18-5 ; length of mp4 4 ; molars only 10-2. 



Hah.— Chnmhi Valley, Tibet. Type from Gautsa, 13,800'. 



Type. — Immature male. B.M.No. 14. 6. 24. 1. Collected by a 

 native servant of Capt. Bailey's, and presented by the latter. 



This western form of Trogopterus is distinguishable from its geo- 

 graphical ally T. mordax by its darker colour and especially by the 

 diminution or absence of fulvous on its muzzle, ears and feet. 



EpIMYS BRAHMA, Sp. n. 



Resembling H. fulvescens, Gray, but decidedly larger. Mammae 

 1—2=6. 



Fur softer and moi*e woolly than in fulvescens, hairs of back about 

 10 — 11 mm. in length, the longer piles 18 — 19mm. General colour 

 above near cinnamon-brown, becoming more bufiy on the sides. 

 Undersurface greyish white, the hairs white to their bases on the 

 throat and middle line of belly and on the chest. Muzale greyer 

 7 



