528 On new Subspecies of Protoxerus stangeri. 



Chest dark grizzled grey, bell}^ more brownish, tlie hairs 

 tipped with buffy. Ears without bnffy postauricalar 

 patches. Forearms with scarcely any bufFy on tlieir under 

 surface, while they are always distinctly bufFy in ehorivoras ; 

 hands practically black. Legs deep rufous, stronger than in 

 eborivo7nis ; feet mixed black and rufous. 



Hind foot of type 61 mm.; greatest length o£ skull ^Q. 



Bah. Middle Welle River. Type from Lobi, near Ang'u, 

 about 24° E. 



Ti/pe. Adult male. B.M. no. 7. 7. 8. 182. Original 

 number 57. Collected 17th February, 190H, by Boyd 

 Alexander on the Alexander-Gosling Expedition. One 

 specimen. 



Considering its distance from the West Coast, and the fnct 

 that much lighter-coloured forms (nordhoji, dissonus) occur 

 in the intermediate area, this subspecies is curiously like the 

 Gaboon eborivo7ms, but may be distinguished by the re- 

 duction of the rufous on the forearms and the darker red 

 hind legs. It is probably really a darkened ally of the 

 Congo iwtahilis, 



Pj'otoxerus stangeri notahilis, subsp. n. 



Like eentricolaj but colour richer and brio-Jiter. 



General characters of the centricola o£ Uganda, but the 

 back more strongly ochraceous, this colour also extending 

 more vividly on to the nape and scarcely lightening on the 

 shoulders. Posteriorly the dorsal colour extends richly on to 

 the hips and legs — rich ochraceous rufous instead of brownish 

 rufous. Chest whitish; belly bufFy. Lateral line more 

 strongly white-grizzled than in centricola. Hands blackish 

 with many of the finer hairs ochraceous; feet rich ochra- 

 ceous. Tail-hairs more prominently white.tipped. 



Hind foot of type 63 mm.; condylo-incisive length of 

 skull 60. 



Ilab. Ituri region of Upper Congo ; type from Avakubi ; 

 others from Poko and Mawambi. 



7'i/pe. Adult male. B.M. no. U. 2. 11. 7. Orioinal 

 number 199. Collected 1st November, 1912, by Dr. Cutii- 

 bert Christy. Six specimens. 



This fine animal has hitherto been referred to centricola, 

 but a comparison of the series of specimens now available 

 both from the Ituri region and Uganda shows that those of 

 the former are so much more richly coloured as to deserve 

 subspecific distinction. 



