CO LOB us 131 



Color. Top and back of head chestnut red ; superciliary line, cheeks 

 and long hairs over ears black ; back from nape to rump and flanks, black 

 with red hairs mingling with black between shoulders ; rump slaty gray 

 with a strong reddish tinge ; shoulders and arms to wrists bright red ; 

 thighs and legs to ankles slaty gray ; inner side of limbs gray tinged 

 with yellow; chin, throat and under parts of body brownish gray; 

 hands, feet and tail, black; face black. Ex specimen Berlin Museum. 



Measurements. Total length, 1,310: tail, 710; foot, 160. Skull: 

 total length, 1 14.7 ; occipito-nasal length, 97.7 ; intertemporal width, 

 42.1; breadth of braincase, 60; Hensel, 77.7; zygomatic width, 89; 

 median length of nasals, 17.5 ; palatal length, 39 : length of upper molar 

 series, 28.9 ; length of mandible, 80.8 ; length of lower molar series, 

 36.1. Ex specimen Berlin Museum. 



Considerable variation is exhibited by this species in the color 

 of its coat at different ages, as seen in the series of skins in the Berlin 

 Museum, some being red on the upper part of back and neck, with 

 the lower back and rump grayish ; again in others the dorsal region 

 from neck to middle of back is black, remaining parts on side bright 

 red, with lower back, rump and flanks brownish red, and basal half of 

 the tail same color. These variations occur in specimens from the 

 same locality. 



CoLOBUs FOAi Pousargues. 



Colobus foai Pousarg., Bull. Mus. Hist. Nat., Paris, 1899, p. 278. 



Type locality. Country of the Ouroua, south west of Lake 

 Tanganyika, Africa. 



Geogr. Distr. Central Africa, between Lake Tanganyika and the 

 Upper Congo, country of the Ouroua and Baloubas. 



Color. Upright crest on forehead black or blackish chestnut ; on 

 front edge, the longer hairs behind red ; top of head, and long hairs 

 over ears above temples, hind neck, and back to rump black glossed 

 with chestnut, becoming reddish on the sides of body ; a patch of long 

 reddish hairs in front ; behind ears and sides of neck, beneath ears 

 and throat, and under parts and inner side of limbs yellowish white ; 

 chin, and beneath lower jaw, arms and legs red; rump and thighs 

 bright red ; tail bright chestnut red for basal third ; remainder maroon. 

 Ex type Paris Museum. 



The unique type in the Paris Museum was a flat skin and lacked 

 the hands and feet and these were supplied when the specimen was 

 mounted by hands and feet taken from a skin of Colobus ferru- 



