19U5.] MR. J. L. BOXHOTE OX MAMMALS FROM TIBET. 305 



is normal, excej^t foi- the great length of the canines already noted, 

 calls for but little comment. The spaces between the premolars 

 are large in correlation with the length of the muzzle, and the 

 first upper molar is relatively small. 



Dimensions : — 



V. ferrilatus. V. v. waddelli. 

 mm. mm. 



Greatest length 155 145 



Basallength 138 130 



Palatal length 78 71 



Length from post, end of palate to 



basioccipital 60 59 



Length from last incisor to ant. root 



of 1 st premolai- (alveoli) 19 16 



Length of premolar series 48 39 



Breadth of bi-ain-case immediately 



behind supraorbitals 26 23 



Greatest breadth of brain-case 50*5 49 



Zygomatic breadth 84 72 



Breadth of muzzle at ant. root of 



2nd premolar 19 23 



Length of upper canine along its 



anterior margin 29 20 



This comparison of dimensions will show moi-e clearly than any 

 description the main features in which this skull differs from that 

 of the more typical '^ Vulpes" ; and in spite of the doubt of 

 Mivai't ^ there can be no question that femlatios not only is a 

 good species, but is more differentiated than any other species in 

 the region. 



The only other skull of ferrilatus known is a veiy young one 

 collected by Mi-. Hodgson ; it is, however, too young to show any 

 of the specific characters enumerated above. 



PuTORius ALPiNus (Gebler). 



JIustela cdjiina Gebler, Mem. Soc. Lnp. Nat. Moscou, vi. p. 213 

 (1823). 



Pidorius alpinus Blanford, Faun. Br. Ind., Mamm. p. 168 

 (1891). 



a. S ad. (in spirit). Gyangtse, alt. 12,900', 1904. 



h. S . Khamba Jong, alt. 15,500', 11th Sept., 1904. 



Oricetulus lama. 



Cricettdus lama Bonhote, Abstr. P. Z. S. No. 22, p. 14, Nov. 21, 

 1905. 



a. c? ad. Lhasa (skinned from spirit). 



h. S ad. Lhasa (in spirit). 



The Cricetulus referred tot as "the little white mouse" is 



'* Loc. eit. ante. f Percival Landon : Tibet,' App. bj' H. J. Walton (1905). 



