the Pant/am Plateau, yortliern Xitjeria. 271 



6. Steatomys caxiriniis, sp. n. 



cJ . 21 (ycj.), C3 ; ? . 24, 35, 41, 47, 62, 68, 69. 



A SteatODii/s with large skull but small teeth. Mammce at 

 least 12. 



Size fairly large. General colour the usual brownish 

 fawn, darker along the dorsal area, clearer along the sides. 

 Under surface pure sharply defined white. Ears brown, 

 their edges whitish. Hands and feet whitish, a variable 

 patch ot fawn or brown extending along the metatarsus. 

 Tail of medium length, brown above, whitish below. 

 Mammai apparently 12 in number. 



Skull nearly as large as in *S. hocagei, the large Angolan 

 species, but the teeth conspicuously smaller, not larger than 

 in S. pratensis. Palatal foramina widely open, but as a 

 consequence of the small size of the teeth the hinder edge 

 of the former is only level with the first lamina of m\ and 

 for the same reason there is a greater distance than usual 

 between the back of the molars and the hinder edge of the 

 palate. 



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



Head and body 100 mm. ; tail 54 ; hind foot 19 ; ear 19. 



Skull : greatest length 27'5 ; condylo-incisive length 'IQ 

 zygomatic breadth 13 ; nasals 11 ; interorbital breadth 4*2 

 breadth of brain-case 11 ; palatilar length 12'3 ; diastema 8*1 

 palatal foramina 5*5 X 3*1 ; upper molar series 3"7. 



Tupe. Adult female. 13.M. no. 12. 1. 16. 24. Original 

 number 47. Collected 13th July, 1911. 



This is by far the furthest north-westwards that the genus 

 Steatomys has been recorded. The species may be readily 

 recognized by its combination of large skull — which nearly 

 equals that of S. hocagei — with small teeth, these being only 

 about as in S. pratensis. 



7. Epimys (multimammate). 

 S . 15, 18, 20, 37, 38, 44, 50, 65 ; ? . 29, 30, 43, 51, 64. 



8. Epimys dalto7u\ Thos. 

 S . 71, 72. Kabwir, 2700'. 



9. Arvicanthis mordax, Thos. 



(?. 36 (young) ; ? . 45. 



Not so rufous posteriorly as the type. 



