GERBILLUS MONTANUS, Tip.
GERBILLUS TENUIS..... Fig.Z.
Mammalia.. Plate. 36.
M a m m a l ia .— P l a t e XXXVI. Fig. 1 .
G. capite, dorao, lateribus, ertremitatibusque erfeme versus corpus paUide rufo-fla™, dor so latenbusque
brunneo-peniofflatis; abdomine extremitatibusque intemd albis; capite lato breveque; oculisrubro-
brunneis.
Longitudo ab apice nasi ad basin caudee 6 unc.; caudee 5 unc.
C o l o u r .— 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. Tarsi towards toes ash-grey I 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.
F orm &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.
T eeth, &c.—The incisors of the upper jaw are moderately strong and project
about two lines beyond the alveoli, each having anteriorly a deep longi