CERCOCEBUS 271 



ears. This species often presents, in various degrees, different stages 

 of albinism, and certain individuals thus lacking in color have been 

 described as distinct species, and have added considerably to the 

 synonymy. I have seen all these so called forms, and some others differ- 

 ing slightly which happily had escaped baptism. The first of these albinos 

 was the C. congicus of Sclater (1. c). The type of this form was 

 living in the Zoological Gardens of Antwerp, presented in 1899 by M. 

 F. Fuchs, the then Governor of the Congo Free State. It was a female 

 and was conspicuous for the prominent crest arising from the top of 

 the head and the long hair on the cheeks. It resembles somewhat in 

 the coloring of the head C. hamlyni, but the body is all black. This 

 specimen died and is now in the Museum of the Royal Zoological 

 Society in Antwerp. On a recent visit to the Antwerp Gardens I saw 

 another example, the third, as I was informed by M. I'Hoest, the 

 Director, that they had received. It was a male and about half grown, 

 and differs somewhat from the type, in having the chest black, not 

 white ; the flesh colored face and ears were much blotched with black- 

 ish brown, and the flesh colored hands, and general appearance of the ^ 

 animal, strongly suggested albinistic coloration. It is more white than 

 black, and may be described as follows: General color white; top of 

 head and pointed crest, chest, and abdomen black ; inner side of fore- 

 arm and back blackish ; rest of body and tail white ; face, ears, hands 

 and feet flesh color, the first two blotched with brownish black. Crest 

 standing upright; whiskers very large partly covering the ears, and 

 standing outward from the head. 



The individual representing the type of C. hamlyni Pocock (1. c.) 

 is living (1909) in the Gardens of the Zoological Society of London, 

 and is a female only partially white. It is stated to have come from 

 the "Upper Congo," very likely from Stanley Falls or its vicinity. 

 The following description and measurements were taken from this 

 individual. 



Color. Face pale flesh color spotted with brown; upper eyelids 

 white and eyelashes white. Iris olive brown; brow ridge white with 

 few spots ; ears flesh color slightly spotted. Top of head black, the 

 hairs long about the center forming a pointed crest; in front and on 

 sides of the black crown is a narrow grayish white band; cheeks and 

 behind ears also grayish white; hair on cheeks long partly covering 

 ears ; behind the ears a tuft of white hairs ; nape, and dorsal region to 

 lower back, brown ; rump and sides of body grayish white ; patch on 

 breast ashy gray ; throat and rest of under parts whitish ; tail grayish 

 white ; outer side of arm to elbow grayish white tinged with brown ; 



