42 SECOND YARKAND MISSION. 
1852. According to Blasins 1 A. leucurus, Gerbe, is identical with A. nivalis, Martin 8 ’ 
(Hypudceus alpinus, Wagner), so that those naturalists who do not consider that a 
need he altered if the same specific term, given previously, does not stand, may veto® 
Blyth’s name for the present species. At the same time it is objectionable, for this v ° 
cannot rightly he said to have a white tail. 
There is another species recently described by Severtzoif as A. leucura* from 'Wester 
Turkestan ; the name of this form, if really distinct, will also, I think, require alteration. % 
In general colouration and characters, length of tail and form of teeth, A. blythi _ 
very near A. manclarinm 3 from Chinese Mongolia ; but differs in its much larger ears* 111 
the tail not being so dark above, and slightly in the shape of the teeth. In A. mandat 
the posterior portion of the last upper molar is shewn to be less developed, and the hi* 1 2 3 
most inner salient angle much blunter; the anterior inner angle of the first tooth in * 
lower jaw is also less developed, and all the prisms of that tooth broader and thicker. ^ 
The solitary skin referred to Arvicola roylei in the Asiatic Society’s Museum has bet^ 
mislaid, and its identification, if it came from Bind Dadun Khan, 4 is very doubtful; 
the species was described originally 5 6 as rufous-grey above and grey beneath ; and Jcido' 1 
calls it ashy-brown above, pale brownish-ashy below. The second and third lower 
are said to have three equal folds on each side ; 7 8 9 10 whilst the hindmost upper molar * 
described as elongate, narrow, with three slight folds on each side and an elongate o 
behind. I have an Arvicola from Murree agreeing with the description of A. roylei ^ 
external characters ; but the posterior upper molar has but two folds on each side. 
however, there may be an error in the original description, I am not sure that the s P eCl ^ 
is really distinct. A species of Arvicola has been described by A. Milne-Edwards fr° 
Eastern Tibet under the name of A. melano, g aster , 8 Another species is Neodon silckknen 31 ^ 
the genus Neodon, as was pointed out in a note to a preceding page, being founded up 
characters of no generic value. This species, though attributed to Hodgson, was n eV f 
described by him ; the genus was announced, but without any definite characters beUV 
pointed out, by Horsfield, 9 audit appears to have been first definitely described in Jerd« n 
Mammals of India. 10 
30. Arvicola stoliczkanus. PI. VIII, Eig 1; PI. Xb, Eig 2. 
W. Blanf., J. A. S. B., 1875, xliv, Pt. 2, p. 107. 
A. supra Icete fusco-rufescens, sive sordide ferruginous, subtus albus ; vellere 
longiusculo, ad basin schistaceo, palmis tetradactylis, plantis pentadactylis nudis bred ^ 
tarsis subtus pills indutis, auriculis parvis e vellere hand emergentibus, rotundatis , c (lt 
1 Arcliiv. f. Naturgesch. 1856, Pt. 1, p. 261. 
2 Turk. Jev. p. 82 ; Ann. Mag. Nat. Hist., Ser. 4, Vol. xviii, p. 52. 
3 A. Milne-Edwards, Reckerehes Mamm., i., p. 129, PI. XII, XIII. 
4 Birth, Cat. Mam. Mus. As. Soc. p. 125. 
5 Gray, Ann. Mag. Nat. Hist., 1842, x, p. 265. 
6 Mam., p. 216. 
1 Gray, 1. c. 
8 Rech. Mamm., p. 284, PI. XLIV, XL VI a. 
9 Ann. Mag. Nat. Hist., Ser. 2, iii, p. 203. 
10 p. 216. 
