56 



SECOND Y All K AND MISSION. 



The following are the dimensions of a perfect skull, taken from one of the skins from 

 Pan jah : — 





1V1 etre. 



Inches 



Length from occiput to end of nasal bones 



•0265 



1-08 



Breadth across hinder part of zygomatic arches 



. -013 



0-53 



Least breadth of frontal region between orbits . 



. -004 



0-16 



Length of nasal bones . . . . ■ . 



. -010 



0-4 



Do. of anterior palatine foramina 



. -005 



019 



Do. of row of upper molars 



•004 



015 



Do. of lower jaw from angle to symphysis 



•0125 



0-52 



Height of ditto ditto 



. -007 



0-29 



38. Gerbillus cryptorhintjs, 



PL X; PI. Xb, fig. 5. 





W. Blanf., J. A. S. B., 1875, xliv, Vt. Z, p. 108. 



G. supra rufescenti-arenaceus, subtus albus, coloris dorsalis ventrallsque limite bene 

 notato, rostro in lobum semicircular em, intus pills brevlbns sparsis indutum, nares obteqen- 

 tern, desinente ; caudd corporis capltisque longitudinem excedente, cum dorso superne fere 

 concolore, sed magis rufescente nisi apicem versus, ubi nigrescit, subtus pallidiore, pills 

 nonnvilis ad apicem Cauda? longiorlbus nhjrescenti-fuscis, auriculis medlocribus, ovallbus, extus 

 antice dense pilosis, mystacibus confertls, capltem longitudine parum excedentlbus, supremis 

 nigris, ca?terls albls ; vellere longlusculo, molli, nltldo, basin versus ad tergum schlstaceo ; 

 palmls subnndis, pilis sparsis indutls, plantis confertissirne pilosis; dente molar io ultimo 

 simpllci, inclsoribus unisnlcatls . Long, exempli majorls nuper occisi a rostro ad basin 

 cauda? 5'5, cauda? 6'25, auris 0'75, pedis posterioris a calcaneo I'd poll. Long, exempli 

 mlnoris 4'5, cauda? 5 poll. 



1, 2, 3, 4, 5, Karghalik ; 6, Yarkatid ; 7, Maralbashi ; 8, 9, 10, Yangihiss<ir ; all skins ; 11, in spirit, no label. 



Colour above sandy rufescent, some specimens rather more rufous than others, below 

 white, the two colours sharply divided on the sides ; cheeks pale ; supercilia whitish ; feet white ; 

 tail above rather more rufous than the back, paler and occasionally whitish below, becoming 

 dark-brown or blackish above near the end, and with the slight tuft of longer hairs at the 

 end of the same dark colour. Pur soft and glossy, about half an inch long in the middle of 

 the back, all the basal portion, being at least three quarters of the length, dark ashy, the 

 terminal portion pale yellow-brown to pale rufous, with numerous longer hairs with black 

 tips mixed. On the under surface the hairs are white throughout. On the tail the hair is 

 rather short, coarse, and close together ; there are a very few longer black tips mixed, but 

 scarcely enough to produce an effect in the general colour. 



The ears are oval and of moderate length, densely clad with brown hairs on the anterior 

 portion of the outer surface, and with a fringe of longer hairs on the anterior margin ; the 

 posterior portion of the external surface is nearly naked, except near the margin ; and the 

 anterior portion of the inner surface completely destitute of hair ; but the inner surface is 

 more hairy near the hinder margin. The whiskers are very numerous, the longest slightly 

 exceeding the head, the uppermost behind being black ; all the rest white ; all are mixed 

 at the base with long hairs which cover the side of the nose. Soles of the fore-feet with 

 scattered white hairs, but nearly naked ; those of the hind-feet densely covered with hair 



