new African Mammals. 431 



Dimensions of the type (measured in flesh) : — 



Head and body 93 mm. ; tail 120 ; hind foot 23; ear 20'5. 



Skull : greatest length 27*5 ; basilar length 21 ; greatest 

 breadth 12 # 5 ; nasals 11 ; interorbital breadth 4'5 ; breadth 

 of brain-case 12 ; palatilar length 12*3 ; palatal foramina 5'S ; 

 upper molar series 4'4. 



Bab. Mlanji Plateau, S. Nyasa. Alt. 5500'. 



Type. Adult female. Original number 205. Collected 

 2nd May, 1910, by Mr. S. A. Neave. Presented by the 

 Entomological Research Committee. 



Apart from the peculiar characters of its molars, this 

 mountain-mouse may be readily distinguished by its soft, fur, 

 dark colour, grey and buffy belly, parti-coloured feet, and 

 nearly naked tail. It is, perhaps, most nearly related to 

 E. tullbergi of W. Africa and E. denniaz of Ruwenzori ; but 

 in any case the relationship is very distant. 



With regard to the teeth, I find a similar duplication of 

 the outer cusp of the middle lamina of m 1 in a single example 

 (B.M. no. 4. 7. 1. 109) of E. tullbergi, while other specimens 

 have no trace of it. For this reason I reserve judgment as 

 to the value of the character until further specimens of 

 E. delectorum are obtained. 



Uranomys oweni, sp. n. 



A small West-African representative of the recently dis- 

 covered U. ruddi of Mount Elgon. 



General appearance more that of an Acomys, less that of 

 a Lojihuromys, than is the case with U. ruddi, but this may 

 be partly due to the make of the skins. Fur crisp, not so 

 stiff as in ordinary Acomys, more so than in U. ruddi; hairs 

 of back about 11-12 mm. in length, a few longer hairs 

 (13-14 mm.) intermixed with them. General colour very 

 like that of many species of Acomys, between dull tawny and 

 clay-colour; paler and more buffy on the sides. Under 

 surface white, the hairs white to their bases ; in U. ruddi 

 they are grey basal ly. Ears finely haired, brown. Hands 

 and feet white. Tail scaly, finely haired, very like that of 

 an Acomys, brown above, whitish below. 



Skull, apart from its much smaller size, very like that o£ 

 U. ruddi. 



Dimensions of the type (measured in flesh) : — 



Head and body 91 mm. ; tail 66; hind foot 16*5; ear 14. 



Skull : greatest length 26*2 ; basilar length 22'2 ; greatest 

 breadth 13'6 ; nasals 8 ; interorbital breadth 4*5 ; breadth of 

 brain-case 11; palatilar length 13 "5 ; palatal foramina 7'3 ; 

 upper molar series 4*7. 



llab. Marakissa, French Guinea. 



