122 Mr. 0. Thomas on small Mammals 



to indicate tliat the latter was obtained in the Gambia, where 

 Mr. Dalton also collected. 



C. daltoni is a pale local representative of the group with 

 3 — 2=10 mammse, just as E. gambianus, found with it, 

 represents the multimaramate species. 



21. Epimys sp. 



Sixteen specimens. Gemenjulla, Gambia. 

 A large grey-brown multiraammate species ; perhaps 

 E. erythroleucus, Temm. 



22. Ejnmys sp. 



(J. A. 10. Talicori, French Gambia. 



Without a female example, to indicate tlie mammary- 

 formula, I do not venture definitely to determine this 

 .specimen. 



23. Epimys gamhianus, sp. n. 



Twelve specimens from various localities in Frencli 

 Gambia. 



A small fawn-coloured or sandy member of the multi- 

 mammate group. 



General appearance very much as in the Upper Nile 

 E. blatnei, Wrought. Colour of upper surface sandy fawn, 

 as in desert animals commonly, very different from the usual 

 grey or brown of' the other niultimammate species. Under 

 surface creamy white, the bases of the hairs slaty grey. 

 Ears large, though rather smaller than in E. hlainei, greyisli 

 brown, their minute hairs white. Hands and feet white. 

 Tail rather longer than head and body, fairly well haired, 

 grey-brown above, whiter below. 



tSkull about as in E. blainei. 



Dimensions of the type (measured in flesh) : — 



Head and body 95 mm.; tail 97 ; iiiud foot 22; ear 17. 



ISkuU : tip of nasals to back of parietals 25 ; upper molar 

 series 5*1. 



An older and more perfect skull measures : — ■ 



Greatest length 28"2 ; condylo-incisive length 26'1 ; inter- 

 orbital breadth 4*2 ; breadth of brain-case 12 ; palatilar 

 length 12'2 ; palatal foramen 6'7 ; upper molar series 5. 



Hab. of type. Gamon, French Gambia. 100'. 



Type. Adult male. B.M. no. 11. 6. 10. 87. Original 

 number A. 77. Collected 9th April, 1910. 



This species, while quite unlike all the other multimammate 

 forms, is extremely similar to E. blainei of the Egyptian 



