MAMMALS 
303 
(c.) 24 ; skull, greatest length 26 ; greatest breadth 14’5 ; etc. The skull 
is peculiarly square and short, and, unlike any other gerbil I know, the 
zygomatic processes start out very abruptly in front, recalling the skull 
of Malaeothrix ; the nasals, however, are short ; the bullae are rather 
large, and very thin in texture. The palate is peculiar, the palatal (in 
distinction to the incisive) foramina being unusually large, etc. I have 
great pleasure in associating the name of the collector with this very 
interesting new form.’ 
Phillips’ Gerbil (Gerhillus [Tatera] phillipsi). 
Discovered by Mr. E. Lort Phillips, March 8, 1897, at Hanka Dadi. 
Mr. E. de Winton says of this gerbil : ‘ Colour of the upper parts fawn ; 
most of the hairs on the top of the head and on the back are tipped with 
dusky ; scarcely any sign of eye or ear patches ; the fur gray at the base 
except on the eyebrows and cheeks ; all the underparts to the base of the 
fur, with the feet and hands, pure white ; the tail is bicoloured, much like 
the back, above, white beneath ; the feet and hands are not very thickly 
covered with hair, and the tail has only short hair upon it. The pads of 
the fore-feet (in the dry skin) are darker than the soles generally, and the 
soles and pads of the hind-feet are dusky-brown or almost soot-coloured.’ 
Measurements (in flesh) : head and body 120 millimetres ; tail 163 ; hind- 
foot 32 ; ear 20. 
(Gei'billus [Tatera] murinus.) 
The African Crested Rat {Lophiomys imhausi). 
Shoan boundaries. 
Long hairs some 3| inches in length, w'hite at ends and base, and black in 
the middle, run down the back and tail. Colour dark brown ; white 
spot on forehead and a white line under the eyes ; tip of tail white. 
Smith’s Crested Rat (LopMomys smithi). 
Sheik Husein. 
Discovered by Dr. Donaldson Smith. Length 14 inches. 
‘ Covered with long silvery white fur.’ — Smith. 
Long crest down back and tail as in the African crested rat. 
The Black Rat (Mus rattus). 
Ogaden and the Boorgha country. 
Back yellowish brown ; belly white. Length 15 inches. 
The House Mouse (Mus musculus). 
Coast towns, Berbera, Zeila and Bulhar. 
Colour brown. Ears large ; tail long. 
(Mus gentilis.) 
Cuban. 
This is the desert form of M. musculus. Paler and yellower than the house 
mouse, with a paler, almost white, belly (Brants). 
(Mus macrolopis). 
Cuban. 
Head and body, 130 ; tail, 126 ; hind foot, 27. Colour gray. 
