108 W. T. Blanford— On the Voles (Arvicola) of the [No. 2, 



the second internal, the fourth by the third external, and the fifth by the 

 third internal angle ; the last two are not separate, but form together an 

 inequilateral arrowhead,* the internal angle being nearer to the posterior 

 extremity of the tooth, but directed forwards, and with a deeper notch in 

 front of it than the other angles. 



In the first lower molar the first outer angle is much rounder and less 

 prominent than the others. The third lower molar is peculiar, as the 

 usual anterior outer angle is completely wanting,f and the first outer angle 

 (corresponding to the second in other Arvicola) is very small and not so 

 prominent as the second, which, again, is inferior in size to each of the 

 three inner angles. The first space corresponds to the first inner angle, the 

 second space to the second inner and first outer, the third space to the 

 second outer angle, and the fourth space to the third inner angle. The 

 last two spaces are confluent in some specimens. 



The interparietal has the hinder edge nearly straight, and the two 

 lateral edges forming an ogee curve, the concave portion near the anterior 

 angle, the convex external ; the anterior angle slightly prominent, the 

 lateral angles not so, each of the latter being a little less than a right 

 angle. 



This species has been obtained in two parts of Western Tibet — on the 

 banks of the Tsomoriri, a large lake north of Spiti, and in the country be- 

 tween Leh and the Pankong lake in Ladak. Both places are at a consider- 

 able elevation, over 13,000 feet above the sea. 



7. Arvicola mandarinus?, var. (Teeth, Plate II, fig. C.) 



? Arvicola* mandarinus, A. Milne-Edwards, Recherches Mammiferes, 



p. 120, pi. XII, fig. 4, pi. XIII, fig. 4. 

 Golunda meltada, Gray (" var. or distinct species from Griffith's collection 



in Afghanistan"), Horsf. Cat. Mamm. Mus. E. I. Co., p. 144. 



The following description is that of the Afghan skin in the British 

 Museum : — 



Colour rufescent fulvous (light greyish rufeseent brown) above, white 

 beneath ; tail the same as the back ; feet whitish. 



Eur soft, basal two thirds leaden black ; tips isabelline (pale fulvous), 

 a few slightly longer black tips interspersed throughout the dorsal surface. 



Ears short, concealed by the fur, hairy inside and out. 



Feet of moderate size ; thumb of fore foot very short, but furnished 



* In the description of the Mammalia of the Second Yarkand Mission I described 

 this tooth as composed of four lobes, the two posterior spaces being counted together. 



t A somewhat similar character is shown in Blasius's figure of the corresponding 

 tooth in A. agrestis (Saugh. Deutschl. p. 370) and in that of the petrophilus-iorm of 

 A. nivalis (ib. p. 360), but not to the same extent as in A. blythi. 



