Mammals from Northern Angola. 411 



more localized specimens are brought together some of their 

 ranges will be found to overlap without intergradation taking- 

 place, in which case they will have to be considered as species. 

 The three forms I recognize may be briefly indexed as 

 follows : — 



Colour dark olivaceous, lateral lines blackish. Tail dull 



brownish . congicus. 



Colour light yellowish olivaceous, lateral lines scarcely 



darkened* Tail-hairs ringed with black and yellowish, o'ivellus. 



Colour dull fulvous, the white stripes very broad. Tail- 

 hairs orange at their bases flaoinus. 



The Canhoca specimen of Dr. Ansorge agrees closely in 

 its general dull tone and the blackness of the outer dark line 

 with Kuril's type, still in the British Museum collection. A 

 specimen received from the Lisbon Museum, and labelled as 

 from Caconda, is also similar. 



Funisciurus congicus oliveUus } subsp. n. 



General colour clear yellowish olivaceous, almost ap- 

 proaching Ridgway's " olive-yellow." This colour is yellower 

 on the sides of the nape and on the rump, darker on the back. 

 White stripe well defined, but narrow, the body-colour on 

 each side of it scarcely darkened. Flanks abruptly lighter. 

 Belly white, not sharply denned laterally. Cheeks light, an 

 indistinct darker line running through the eye. Limbs ex- 

 ternally like flanks, internally like belly; upper surface of 

 hands and feet yellow. Tail-hairs ringed with pale yellow 

 and black, the bases, middles, and tips of the former colour 

 separated by two rings of black. 



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



Head and body 165 mm. ; tail 180; hind foot 36; ear 14. 



Hab. (of type). Cunga. 



Type. Adult male. B.M. no. 4. 4. 9. 45. Original 

 number 214. Collected 1st February, 1904. 



The Museum contains another example of this form labelled 

 as from the Quanza River. 



Funisciurus congicus Jlavinus, subsp. n. 

 S. congicus, y&r.Jlavivittis, Bocage (not S.flavivittis, Peters). 

 General colour strongly flavescent, approaching orange on 

 the sides of the neck and on the rump. White stripes very 

 broad and prominent, the dorsal colour between them suffused 

 with blackish ; lateral lines outside them well marked, 

 blackish. Under surface buffy yellow, as are also the inner 



