GERBILLUS MONTANUS. — Smith. 
Mammalia.— Plate XXXVI. Fig. I. 
G. capite, dorso, lateribus, extremitatibusque externe versus corpus pallide rufo-flavis, dorso lateribusque 
brunneo-penicillatis ; abdomine extremitatibusque interne albis ; capite lato breveque ; oculis rubro- 
brunneis. 
Longitudo ab apice nasi ad basin caudse 6 unc. ; caudae 5 unc. 
Colour. — The head, the back, the sides, and the outer surface of extremities 
towards body, intermediate between sienna-yellow and yellowish brown, the 
back and upper parts of sides freely pencilled with umber-brown, the pencil- 
lings so arranged as to produce an appearance as if these parts were marked 
with small brown blotches ; the hairs towards their roots pale blackish purple. 
Tail the same colour as the body, the upper surface freely pencilled with 
umber-brown ; chin, throat, belly, and inner surface of legs towards body 
pale cream-yellow or yellowish white. T. arsi towards toes ash-grey ; claws 
pale cream-yellow. Ears, internally, light wood-brown mellowed with a 
flesh colour; externally, the hair is of a broccoli-brown pencilled with sienna- 
yellow. Eyes deep reddish brown. Incisor teeth of upper jaw Dutch-orange, 
of lower jaw white. 
Form, &c. — Figure robust, and less lengthened than that of Gerbillus Afer , 
though in size the two are nearly alike. Head short, bulky posteriorly, and 
attenuated towards the nose, which is moderately acute. Eyes large ; ears 
moderately long and oval : whiskers rather bushy and wiry towards their 
origin ; fore legs short, hinder legs rather long, toes shorter than in G. Afer, 
and the claws of fore and hinder feet vertically compressed, and more 
arched The hair covering the snout and forehead short and rather harsh, 
that of the other parts of the head, the body, and the extremities, as low 
as the tarsi, moderately long, soft, recumbent, and closely set. Tail tapered 
and densely covered with short, rigid, recumbent hair. 
Teeth, &c.— The incisors of the upper jaw are moderately strong and pro- 
ject about two lines beyond the alveoli, each having anteriorly a deep longi- 
