THE CHIMPANZEES. I99 



II. THE BALD CHIMPANZEE. ANTHROPOPITHECUS CALVUS. 



Troglodytes calvus, Du Chaillu, Pr. Bost. Soc. Nat. Hist., vii., 

 p. 296 (1861); id, Travels, pp. 32, 48, Gt, (1861); Gray, 

 P. Z. S., i86r, p. 273; Bartlett, P. Z. S., 1885, p. 673, 

 pi. xli.; Beddard, Tr. Z. S., xiii., p. 177 (1893); Romanes, 

 P. Z. S., 1889, p. 316. 



Troglodytes kooho-kaniba, Du Chaillu, Pr. Bost. Soc. Nat. Hist., 

 vii., p. 358 (1861); id.. Travels, pp. 39, 49, 50 (1861); 

 Gray, P. Z. S., 1861, p. 273. 



Mimetes troglodytes, var. a {T. calvus). Gray, Cat, Monkeys 

 Brit. Mus., p. 6 (1870). 



Anthropopithecus calvus, Flower & Lydekker, Mammals, p. 736 



(1891). 



^Plate XLI.) 



Characters. — This species was first indicated by Du Chaillu 

 on his return from his celebrated journey to the Gaboon, but 

 based on poor skins, which left much doubt as to the species 

 being distinct. Excellently preserved specimens were, how- 

 ever, brought home by Marche and Dr. Compiegne, and some 

 of them passed into the Dublin Museum, but it was not till 

 1885, when a living specimen, now known to fame as "Sally," 

 was received at the Zoological Gardens in London, and lived 

 there for five years, that the correctness of Du Chaillu, as 

 to the distinctness of his " Kooloo-kamba," A. calvus, from 

 A. troglodytes, was proved and accepted. 



Similar to A. troglodytes, but distinguished from it by the face, 

 hands, and feet being quite black, or brownish-black, instead 

 of pale flesh-colour ; the front, top, and sides of the head and 

 face are nearly naked, having only a few short hairs on the 

 head, which is quite destitute of any signs of the parting so con- 



