1 18 Mr. Gray on new Genera and Species of Mammalia. 



Fam. FelidjE. 



Mustela Horsfieldii. Uniform dark blackish brown, very little 

 paler beneath ; middle of the front of the chin and the lower lips 

 white ; whiskers black • tail slender, blacker, half as long as the body 

 and head. 



Var. ? Throat with a large white spot, chin all white. Mus. East 

 India Company. 



Hab. Bhotan, India. 



This species differs from P. subhemachalanus, Hodgson, in the dor- 

 sal line not being darker ; from M. Cathia, now M . auriventer, of the 

 same author, in the much darker colour ; and from M . sibirica, in 

 the face not being varied with black, and in the general colour being 

 much darker. 



Mustela xanthogenys, Yellow-cheeked Weasel. Bright chestnut, 

 beneath golden yellow; chin, small spot above the angle of the 

 mouth, and feet white ; spot under the ear yellowish white ; spot be- 

 hind the angle of the mouth towards the throat chestnut ; end of 

 tail black. 



Hab. California, Capt. Belcher, R.N., C.B. 



Rather larger than M. erminea ; the upper lip and spot on side of 

 the head chestnut, and spot under the ears whitish. 



Mustela Hodgsoni, Hodgson's Weasel. Fur yellowish brown, 

 rather paler beneath ; upper part and side of head much darker ; 

 face, lips, chin and throat varied with white ; tail elongate, rather 

 bushy, rather more than half as long as the body and head. 



Var. Rather darker, white extended to between the eyes. 



Hab. India, Himalaya. 



This species does not agree with either of those described by Mr. 

 Hodgson*. 



Vulpes flavescens. Pale yellowish, back rather darker ; face and 

 outer side of fore legs and base of tail pale fulvous ; spot on side of 

 face just before the eyes, the chin, the front of fore legs, a round spot 

 on the upper part of hind foot, and the tips of the hairs of the tail, 

 blackish ; the ears externally black ; end of tail white. 



Hab. Persia. 



Lutra. 



The species of this genus are said to be extremely difficult to de- 

 termine, but this appears to arise from sufficient attention not having 

 been paid to organic characters which are of a permanent description. 

 They may be thus divided into genera or subgenera : — 



A. Hind and front feet similar in size; tail tapering , acute, elongate. 



1. Lontra. Muffle hairy ; soles of hind feet half naked; claws di- 

 stinct. L. canadensis, L. brasiliensis. 



2. Lutra. Muffle bald, oblong, transverse; claws distinct; soles 

 half naked. L. vulgaris, L. indica, L. chinensis. 



* Neither of these Indian species are amongst Mr. Hodgson's collection 

 of Nepaul animals which he has just presented to the British Museum pre- 

 paratory to their being published by Mr. F. Howard. 



