1905. | MR. J. L. BONHOTE ON MAMMALS FROM TIBET. 305 
is normal, except for the great length of the canines already noted, 
alls for but little comment. The spaces between the pr eniolars 
are large in correlation with the length of the muzzle, and the 
first upper molar is relatively small. 
Dimensions :— 
V. fervilatus. V.v. waddelli. 
mm. mim. 
Cueasest lemel teco-ccs fe sede c cers 155 145 
Basalblen cular yan tas. 2 ate eee eee eet 138 130 
JeeN eral) lieimead Bes Hoe eeanspacorsnddsovoec 78 al 
Length from post. end of palate to 
bastocenpitall Were ee eencats.s-eaueecseee 60 59 
Length from last incisor to ant. root 
of Ist premolar (alveoli) ............ iS) 16 
Length of premolar series ............ 48 39 
Br eadth of brain-case immediately 
behind supraorbitals.................. 26 23 
Greatest breadth of brain-case......... 5O°D AO 
Ax comeasicy Wr endl eye ses-ceeeen tes 84 12 
Breadth of muzzle at ant. root of 
ai NOW OVRELTOO) EW, | NAGAR eek ABA Recs de saene 19 23 
Length of upper canine along its 
AVMTeTNOIe TaN ACAD snanedabAnasounees 29 20 
This comparison of dimensions will show more clearly than any 
description the main features in which this skull differs from that 
of the more typical “ Volpes”; and in spite of the doubt of 
Mivart * there can be no question that ferrilatus 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 very young one 
collected by Mi. Hodgson ; it is, however, too young to show any 
of the specific characters enumerated above. 
Purortrus ALPINUS (Gebler). 
Mustela alpina Gebler, Mém. Soc. Lnp. Nat. Moscou, vi. p. 213 
(1823). 
Putorius alpinus Blantord, Faun. Br. Ind., Mamm. p. 168 
(1891), 
a. 6 ad. (in spirit). Gyangtse, alt. 12,900’, 1904. 
6. 3. Khamba Jong, alt. 15,500, 11th Sept., 1904. 
CRICETULUS LAMA. 
Cricetulus lama Bonhote, Abstr. P. Z.8. No. 22, p. 14, Nov. 21, 
1905. 
a. gad. Lhasa (skinned from spirit). 
6. g ad. Lhasa (in spirit). 
The Cricetulus referred tor as ‘the little white mouse” is 
* Loe. eit. ante. + Percival Landon: Tibet,’ App. by H. J. Walton (1905). 
