Three new Bodents from Africa, 253 



mandible the distance between the coionoid and condyle is 

 shorter, and the molars much broader and heavier. 



Oerhillus (Tatera) Phillipsi, sp. n. 



Colour of the upper parts fawn ; most of the hairs on tlie 

 top of the head and on the back are tipped with dusky ; 

 scarcely any sign of eye- or ear-patches ; the fur grey at the 

 base, except on the eyebrows and cheeks ; all tlie underparts 

 to the base of the fur, with tlie feet and hands, pure wliite; 

 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, about as in 

 G. afer. 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. The soles 

 of the hind feet are reticulated in the distal and padded 

 portions, smooth in the metatarsal. In outward ajjpearance, 

 especially in colour, more nearly resembling the true Gerbils 

 than any known species of the group to which it belongs. 



Type in the British Museum (no. i)7. 12. 3. 7), " Hanka 

 Dadi, ISomali, 8th March, 1897, trapped on sandy bank." 

 Collected and presented by i\lr. E. Lort-Phillips. 



Measurements (taken in the flesh) : — 



Head and body 120 niillim. ; tail 163; hind foot 32; 

 ear 20. 



Skull : greatest length 38'5 ; greatest breadth 20*1 ; across 

 the front of the zygomata l4'6; nasals, lengtli 16, inter- 

 parietal bone 4"5x9*3, basal length 32; incisive foramina 8; 

 palatal foramina 2*7 ; upper molar series 6; outside 'mi 7*7, 

 outside °^^-? 7'1 ; mandible length (bone only) to condyle 20, 

 to coronoid 16, to angle 20*3 ; height, standing on table, per- 

 pendicularly to coronoid 9*7, to condyle 9*9. 



The skull resembles those of its allies in general shape; 

 the nasal bones are, however, considerably longer in propor- 

 tion — in fact, the actual length of these bones is only equalled 

 m 6r. murinus, which is a much larger animal ; the auditory 

 bullae are rather more rounded than in either G. afer or 

 G. leucogaster. The incisors are narrow, as are also the 

 molars ; the last molar is trefoil-shaped. 



Georychus Lugardi^ sp. n. 



Colour seal-brown, with a small white spot on the crown of 

 the head. The colour is not unlike that of G. Lechei from 



