412 Mr. O. Thomas on 



sides of the limbs ; upper surface of hands and feet orange- 

 yellow. Sides of head and edges of ears dull buflfy whitish, a 

 faint darker line running backwards from the whiskers and 

 another through the eyes. Tail-hairs deep orange for their 

 basal half, then with a broad subterminal bar of black, their 

 tips buffy yellow ; terminal hairs of tail tipped with black. 



Dimensions of the type (measured in spirit before 

 skinning) : — 



Head and body 168 mm. ; tail 141; hind foot 39 ; ear 14. 



Skull: greatest length 40; basilar length 3L ; palate 

 length 16 ; length of upper molar series (excluding minute 

 anterior premolar) 6' 2. 



Hab. (of type). Capangombi, southern plateau of Angola. 



Type. Male. B.M. no. 92. 1. 9. 6. Received in exchange 

 from the Lisbon Museum. 



Two specimens from ie Angola," collected by Mr. Monteiro, 

 and some imperfect skins from the Cunene River, collected 

 by C J. Andersson, may be referred to this form. 



25. Otomys irroratus, Bts. 



J 1 . 29. Pungo Andongo. 

 $ . 163. Braganza. 



26. Tatera valida, Bocage. 



<J. 184, 193. Braganza. 



<?. 105, 125, 126, 127. Pungo Andongo. 



27. Cricetomys Ansorgei, sp. n. 



^ . 39 ; ? . 18, 22. Pungo Andongo. 



<J . 211 ; ? . 212. Golungo Alto. 



Size even larger than in G. gambianus. General colour 

 drab-brown, paler than in true gambianus, darker than in the 

 southern form of that animal. Under surface of a similar 

 colour, but little paler than above, the throat and inguinal 

 region alone more whitish. Young specimens, however, 

 have their belly whitish. Cheeks paler than body, " wood- 

 brown," muzzle and orbital rings darker brown, an irregular 

 whitish patch at the base of the whiskers. Arms and legs 

 like body; metacarpals blackish brown mesially, digits and 

 outer edge of metacarpals whitish; ankles and metatarsals 

 blackish brown, toes lighter, but not conspicuously contrasted 

 white. Tail black for its proximal, white for its terminal 

 half, the contrast more marked than is usual in gambianus. 



Skull similar to that of G. gambianus, but larger throughout, 

 and with heavier molars. 



