(lie Piiiit/'vn Plttfeiiij Northern Nigeria. 273 



Dimensions of the type (measured in the flesh) : — 



Head and body 100 mm.; tail 100; hind toot 17; 

 ear 17. 



Skull : greatest length 29*5 ; condylo-incisivo length 26'G ; 

 zygomatic breadth 14; nasals 11; interorbital breadth 4*5 ; 

 breadth on parietal ridges 12"5 ; height of supraorbital edge 

 from alveolus of m' 6*3 ; diastema 8 ; palatal foramina 7 ; 

 upper molar series 4'8. 



Hah. Kabwir, 2700'. 



Tiipe. Adult female. B..\r. no. 12.1.16.49. Original 

 number 109, CV)llected 15th February, 1911. 



This is the first Acoini/s to be discovered in any part of 

 W. Africa, the Tripolitaii A. viator being its nearest neigh- 

 bour. It may be distinguished from other species by its 

 grey back and biifFy sides, in which respects it resembles 

 certain of the Somali species. 



14. Uranomys foxi, sp. n. 



S . 31. 7th July, 1911. B.M. no. 12. 1. 16. 50. Type. 



A fairly large species; colour pale. 



Size nearly equalling that of the Mt. Elgon U. ruddi^ 

 markedly larger than in the Gambian U. oweni. Fur of the 

 same semispinous texture as the otiier species ; hairs of back 

 about 11 muK in length. General colour of upper surface 

 grizzled dial), darker along the median dorsal area and 

 becoming more fulvous on the rumj). Under surface dull 

 whitish, washed with drab, the line of demarcation little 

 marked ; hairs of the belly generally whitish to the roots, 

 but those of the median sternal region slaty grey basally, 

 where also in the type they are stained terminally " walnut- 

 brown." Hands and feet whitish, wrists and ankles greyish 

 brown. Tail uniformly finely haired, about as in U. ruddi, 

 hairier than in U. oweni, brown above, dull whitish below, 

 not sharply defined. 



Skull slightly smaller than that of U. ruddi, decidedly 

 larger than in U. oweni. Brain-case narrower and lower 

 than in U. ruddi, the supraorbital ridges more strongly 

 developed. Occipital plane more vertical, not slanted forward 

 as in that animal. Palatal foramina excessively long, 

 reaching past the level of the back of the inner root of m\ 



Dimensions of the type (measured in the flesh) : — 



Head and body 105 mm.; tail 72; hind foot 18; ear 15. 



Skull: condylo-basal length 28*1 ; condylo-incisive length 

 28*8 ; zygomatic breadth 14'4 ; nasals 9*7 ; interorbital 

 breadth 5"1 ; breadth across parietal ridges lO'G j palatilar 



