1899,] NATURAL SCIENCES OF PHILADELPHIA. 291 



the types of Mkrotm fertilis and 31. brachelix resemble each other 

 so exactly that it would be difficult to find two skins more perfectly 

 alike. 



Ears. — The ears ai'e small, much overtopped by the surrounding 

 fur. while in 31. fertilis they are about equal to the fur in length. 

 The reduction in height is especially noticeable along the upper 

 edge of the anterior border, which is reduced to the merest rim. 



Skull and teeth. — In cranial and dental characters 3Iicrotus 

 brachelix agrees perfectly with 31. fertilis. 



Remarks. — I should hesitate to separate 3ficrotus brachelix from 

 31. fertilis on the single character of the size of the ears, did not 

 the five specimens of the latter show perfect uniformity among 

 themselves. Even in a half -grown specimen of 3f. fertilis the ears 

 are much larger than in the type of 3f. brachelix. 



Measurements. — The measurements of the type of 3Iicrotus 

 brachelix and of five specimens of 31. fertilis are given in the fol- 

 lowing table : 



3Ieasurements of 3Iicrotus fertilis and 31. brachelix. 



(lu millimetres.) 



Microtus fer- 

 tilis 



Microtus fer- 

 tilis 



Microtus fer- 

 tilis 



Microtus fer- 

 tilis 



Microtus fer- 

 tilis 



Microtus bra- 

 chelix 



Locality. 



Pir Panjal mountains, 

 Kashmir 



Krishnagunga valley, 

 Kashmir 



Kaj Nag mountains, 



Central Kashmir .... 



Pir Panjal mountains, 

 Kashmir 



N a g m a r g, Kash- 

 mir 



10 



9.6 



1884. 



Subgenus ALTICOLA Blanford. 

 Alticola Blanford, Journ. Asiat. See. Bengal, 

 Type Arvicola stoliczkanus Blanford. 



pt. ii, p. 84. 

 Seven species of the compact and well-defined subgenus Alticola 



' Collector's measurement. 



Type. 



