14 ERYTHROCEBUS 



the black chin. The latter however is said to be constant. Ex type 

 Berlin Museum. 



Erythkocebus LA.NGELDI Matschic. 



Erythrocebus langeldi Matsch., Sitzungsb. Gesell. Naturf. Freunde, 

 " 1905, p. 276. 



Cercopithecus langeldi Pocock, Proc. Zool. Soc. Lond., II, 1907, 

 p. 745. 



Type locality. Garu, Cameroon, West Africa. Type in Berlin 

 Museum. 



Genl. Char. Nose black ; tail rather short. 



Color. Top of head ochraceous rufous ; upper parts of body 

 reddish orange buff ; flanks orange buff ; black line across forehead 

 extending backward to ears; hairs on fore part of cheeks brownish 

 black, hind part white ; sides of neck, arms and legs below knees, buff ; 

 lips and chin with black and white hairs mixed ; throat white, rest of 

 under parts and inner side of arms yellowish white ; thighs orange 

 buff ; inner side of legs white ; hands and feet silvery white with buff 

 centers ; tail like back at root, remainder above ochraceous buff, beneath 

 whitish. Ex type Berlin Museum. 



Measurements. Total length, 905 ; tail, 325. Ex type Berlin Mu- 

 seum. 



There are two specimens of this form in the Berlin Museum 

 one of which is quite immature, and that is the tj-pe. It is so young I 

 have not deemed it worth while to give the dimensions of the skull. 

 Unfortunately of the older and larger example there is no skull. Both 

 specimens agree in color, and are much darker than E. baumstarki, 

 and also have the black stripes on head. 



Erythkocebus albigenis Elliot. 



Erythrocebus albigenis Elliot, Ann. Mag. Nat. Hist., IV, 8th Ser., 

 1909, p. 265. 



Type locality. "Egyptian Soudan"; exact locality not known. 

 Type in British Museum. 



Genl. Char. Black brow band extending to crown, not to ear ; 

 thighs mostly white. Hair on hind neck and shoulders very long, mane- 

 like. 



Color. Adult male. Face and nose black; narrow line on edge 

 of upper lip white; black brow band mixed with white over eyes, 

 turning upward at corner of eyes and encircling the crown ; no black 



