MAMMALIA. 
77 
49. Lagomys geiseus, Pl. VII, fig. 1 ; PL Vila, fig. 3. 
W. Blanf., J. A. S. B., 1875, xliv, Pt. 2, p. Ill, 
L. sordide griseus, subtus dibits, ad dorsum frontemque leviter rufescenti-lavatus , vellere 
elongato , molli, ad basin plumbeo-nigro, apices versus in dorso lateribusque griseo, apicibus 
ipsis nonnullis fuscis; auribus magnis rotundatis, pilis spar sis albidis indutis. Long . in 
exemplo nuper occiso 7, capitis 1’75, auris 1’4, tarsi 1'3 poll. 
1, 2, south of Sanju Pass, south of Yarkand, Kuenlun Eange. 
General colour dull-grey (almost chinchilla colour) with a slightly rufescent tinge on 
the face and hack, lower parts white. Pur very soft, about 09 inch long in the middle of 
the hack, glossy leaden black at the base, and for about two-thirds of its length very pale, 
ashy-grey towards the end, the. extreme tips of many hairs dark-brown, and on the hack 
the tips of all the hairs are brownish. The sides are almost pure light ashy, rump still paler, 
feet white. Hair on the face long, on the forehead about half an inch, the basal portion 
black, the terminal portion light-brown on the forehead, greyer on the nose, and pure grey 
on the sides of the head. A few of the upper whiskers are black, all the longer and lower 
vibrissse white throughout. Ears large, round, with rather thin white hairs inside, very short 
hairs close to the margin, white on the outside, black on the inside, outer surface covered with 
whitish hairs which become long near the base of the ear. 
The following measurements are taken from one of the tickets, and consequently are 
doubtless those of the animal when freshly killed; the measurements from the dried skins 
are added for comparison with other species:— 
Fresh specimen. Dried skins. 
Inches. Inches. 
Total length . . ..7 6*5 to 7‘5 
Length of ear ......... 1*4 IT 
Width of do. . . . . . . . . . P3 1* 
Length from nose to eye . . . . - . . 09 
Do. do. to base of ear . . . . . .1*7 
Do. fore-foot .0 - 8 0-8 
Do. hind-foot . ..1-3 1-3 
The following are the measurements of a skull barely adult:— 
Metre. 
Total length. *044 
Do. breadth across zygomatic arches . , . . . *022 
Length of nasal bones . . , . , . . . *0155 
Width of do. behind ........ *005 
Do. do. in front.*0055 
Do. of frontal bones between orbits . . . . *006 
Longitudinal diameter of orbit . . . . . . . *011 
Transverse diameter of do..*009 
Length of palatine opening.*013 
Breadth of do, behind . . . . . . . *006 
Antero-posterior diameter of bony palate behind palatine opening . *002 
Width of palate between last pair of molars . . . . *0075 
Length of five upper molars taken together . . . . *009 
Do, of lower jaw from angle to symphysis .... *029 
Height of do. , ..*017 
Inches. 
1*75 
0-86 
0*6 
0*2 
0*22 
0-23 
0*45 
0*36 
0*52 
0-23 
0*08 
0*3 
0*36 
1*12 
0*7 
tr 
