ALLEN: MAMMALS OF THE PHILLIPS PALESTINE EXPEDITION. 7 
5.6. Posteriorly the inflated mastoids project slightly beyond the 
occipital region. 
GERBILLUS GERBILLUS (Olivier). 
Tawny Gerbil. 
Dipus gerbillus Olivier, Voy. Egypt., 1801, 3, p. 157, pl. 28; Bull. Soc. philom. 
Paris, 1801, 2, p. 121. 
This brightly colored gerbil was first trapped at Wady Shurandel 
in the Sinai region. Other specimens were taken at the head of the 
Gulf of Akaba to the northeast, namely at Akaba and Suweira, but 
none has been recorded to the northward of these places. 
DIPODILLUS QUADRIMACULATUS Lataste. 
Four-spotted Gerbil. 
: 
Dipodillus quadrimaculatus Lataste, Le naturaliste, 1882, 4, p. 27. 
| Aseries of six specimens from Akaba, at the head of the Gulf of the 
same name, appears to represent this species, and extends its known 
range somewhat to the eastward. Its apparent absence from the high 
ough country of the interior of the Sinai peninsula may indicate that. 
} is confined to the low sandy areas along the coast. 
. 
| DIPODILLUS DASYUROIDES Nehring. 
Nehring’s Smooth-footed Gerbil. 
om dasyuroides Nehring, Sitzb. Ges. naturf. freunde Berlin, 1901, p. 173. 
|4 series of thirteen skins, old and young, seems referable to Neh- 
ng’s species, the type of which is from Mount Moab, east of the 
juthern end of the Dead Sea. The chief color character distinguish- 
8 it from Wagner’s dasyurus of western Arabia is said to be the 
_lowish instead of pure white area above the eyes. In the series 
Ifore me there is some variation in tint, chiefly due to the greater or 
lis suffusion of the upper parts with buffy. This seems partly a 
\\tter of age, since the young and subadults are less buffy y, the pale 
aa above the eyes is dirty white, and the ventral side of the tail is 
