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



which, again ; is but little longer than the fourth. This exceeds the fifth 

 by more than the length of its last phalanx, and the fifth is longer than 

 the first by about half the same length. There are five pads or tubercles 

 beneath the fore foot ; the two hinder the largest, opposite to each other 

 and to the base of the thumb ; the three distal pads small, and arranged 

 in a triangle at the base of the toes. On the sole of the hind foot there 

 are also five tubercles — two in front, one on each side of the base of the 

 middle toe, another pair at the base of the two outer toes, the outer nearer 

 the distal extremity of the foot than the inner, and the fifth at the proxi- 

 mal extremity of the naked sole, and about as far behind that at the base 

 of the fifth toe as the latter is from the pair at the base of the middle toe. 

 Lower portion of tarsus hairy. 



Tail between one third and one fourth the length of the head and 

 body, almost cylindrical, diminishing but little in thickness towards the 

 end, clothed with long hair at the base, and with short brown hair through- 

 out the terminal three quarters of its length. The hairs only project one 

 eighth to one fourth of an inch beyond the end of the tail. 



The following are the dimensions of the specimens, both adult males, 

 in spirit* : — 



in. in. 



Length of head and body from nose to vent 4' 75 35 



Tail from vent (hair at end not included) 1*35 12 



Height of ear from orifice 025 26 



Breadth of ditto 025 026 



Length of fore foot without claws 0'4 4 



„ hind foot and tarsus without claws 0*7 0*7 



„ claw of middle toe Oil 013 



The incisors are deep orange. The following are the characters of the 

 molars : — 



Upper molar i, 5 spaces, 3 external and 3 internal angles. 



55 55 ") "* » " 55 55 ^ 55 J> 



tj >» I 11 ) 4 „ o ,, ,, A ,, ,, 



Lower molar i, 7 „ 4 „ „ 5 „ „ 



55 » Hj ** v " >> » " » » 



55 55 HI> " 55 " 55 55 " 55 55 



The two anterior upper molars resemble those in all other Himalayan 

 Arvicolce except A. sikimensis and H. melanog aster, and in the majority 

 of European and American forms. The hinder upper molar has two small 

 salient angles on the outer side in front, much closer together and smaller 

 than the two inner angles. Behind the second outer angle there is a sinus, 



* Spirit-specimens always measure rather less in the length of the body and ears 

 than freshly -killed animals. 



