76 Mr. O. Thomas on Three new 
12-15 smooth scales from eye to eye across the 
forehead ; rostral with angular horizontal edge ; 
Bealesein 4:/—o) LOWS) cyerreee ge ete at we abel ai eral ce G, thebarcus, Reuss. 
B. Seales smooth, in 41-45 rows; tail ending 
in a curved, claw-like scute; 5 smooth 
scales from eye to eye across the forehead. G. Muelleri, Bley. 
XI.—Descriptions of Three new Gerbilles in the British 
Museum Collection. By OLDFIELD THOMAS. 
Gerbillus calurus, sp. n. 
Size medium. Lars rather large, laid forward they reach 
1 millim. in front of the anterior canthus of the eye. Mamma, 
as usual, 2—2=8. Palms naked, with the usual five pads, 
the two large basal ones subequal in size. Soles quite naked, 
the proximal halves smooth and shining, the distal halves 
very coarsely granulated and bearing six large and prominent 
pads. Tail considerably longer than the head and body, 
even without its terminal tuft of hairs; coarsely scaly, the 
rings of scales averaging about fourteen to the centimetre ; 
thickly clothed all round with long coarse hairs 13 to 18 
millim. in length from within an inch of its base to its tip, the 
whole tail being as bushy as in many Myoxide; its colour 
apparently has been a dark rich brown or black throughout 
its length, except at its tip, where the terminal half-inch is 
white or yellow. 
Colour of the body apparently as usual in the genus, 
yellowish or rufous above and whitish below, but, like the 
colours of the tail, they must be taken with great reserva- 
tion, as the only specimen is in a very bad condition and has 
been at least fifty years in spirit. 
Skull with a long, slender muzzle, narrow interorbital 
region, large bulle, whose posterior portion is much swollen 
and appears in an upper view of the skull, and projects poste- 
riorly just beyond the level of the occipital bone. 
Upper incisors bevelled, with a single deep groove. Molars 
of the type so worn that the three laminz of m" are connected 
by two central bridges; these two bridges are, however, not 
directly in front of one another, the anterior being at a 
markedly more internal level than the posterior. As far, 
however, as can be judged in the present state of wear, the 
teeth are decidedly those of Gerbillus (s. s.), and not of the 
Meriones section of the group. Lamine as usual 3—2—1 
