THE CHIMPANZEE. 547 



whose portrait, taken by Messrs. Briggs and Son, of St. John's 

 Wood, IS given herewith, differs in some particulars from the 

 ordinary chimpanzee. The most noticeable distinction being that 

 she has the head and face nearly naked. As Du ChaiUu appears 

 to have procured the skins of similar animals to which he gave the 

 name Troglodytes calvus, the latter word implying bald-headed, 

 Sally has been classified with the same zoological name. 



This animal was purchased in Liverpool, October, 1883, and was 

 then very young and immature. She, at this early age, exhibited 

 well-marked differences between the varieties that had been her 

 predecessors, and as she advanced towards the . adult state, the 

 pecuharities became more fully developed. 



Mr. A. D. Bartlett, the superintendent of the Society's aardens, 

 drew the attention of the members to this fact in an interesting 

 paper read before them at a meeting in June, 1885. " In the first 

 place," he states, " I may remark the colour of the face, hands and 

 feet in the chimpanzee are white or pale-flesh colour ; the same 

 parts of the animal under consideration are hlacJc or Irownish-hlaclc. 

 Another well-marked difference is to be observed in the hair upon 

 the head and face. In the chimpanzee, the hair on the top of the 

 head, and passing down from the centre (where it divides) to the 

 sides of the face or cheeks, is tolerably long and full, forming what 

 may be considered rather bushy whiskers, whereas the figure 

 (Sally's) before you clearly shows the front, top, and sides of the 

 head and face to be nearly naked, having only a few short hairs on 

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

 spicuous in the chimpanzee. Another striking difference may be 

 noticed in the size and form of the head and ears. Out of the number 

 of chimpanzees I have seen and examined, both old and young, none 

 have possessed the large flat ears so conspicuous in this individual. 

 The form of the head, the expression of the face, the expanded 

 nostrils, the thicker lips, especially the lower lip, together with the 

 more elevated skull, cannot fail to distinguish this animal from the 

 chimpanzee. There are other external characters that I pass over, 

 as they require to be described anatomically. Again, the habits 

 of this animal differ entirely from those of the well-known or 

 common chimpanzee. She has always shown a disposition to live 



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