ON VARIETIES IN THE FORM OF ANTHROPOIDS. 221 



nose. An illustration is given in the same work of 

 the anthropoid Koolo-Kamba, here given as a distinct 

 species, and identified in the systematic catalogue 

 as Troglodytes Koolo-Kamba, together with Troglo- 

 dytes Auhryi ; here we see a full-grown chimpanzee 

 of the ordinary kind, to which a front view of the 

 head of the xYubry chimpanzee, as it was published 

 by Gratiolet and Alix, has been affixed. Honest 

 research should stand aloof from such confusion. 

 By Brehm, the Mafuca was given as the represen- 

 tative of the species already established by Diiver- 

 noy, Troglodytes Tschego or Anthropopithecus, and this 

 assertion is accepted by Martin.* The latter remarks 

 that this ape cannot be classified either with the 

 chimpanzee or the gorilla, and gives some reasons 

 for his assertions. 



In my opinion it is a difficult question to decide 

 whether there are several or only one species of 

 chimpanzee. As things are at present, my convic- 

 tion is strengthened that it is only possible to make 

 a provisional settlement, and I am able to admit 

 a certain constancy in the varieties of cliimpanzees. 

 First, The original representative of the species 

 (Troglodytes niger, Is. Geojff. Saint-Hilaire). This 

 animal has a round head, and the supra-orbital arches 

 are strongly developed in the male, more slightly in 

 the female ; the countenance is not very prognathous, 

 and has an angle of 70 degrees ; the ears are 

 from 75 to 78 mm. in height ; and the whole height 

 of the body varies between 1100 and 1300 mm. 



* Thierlehen, ii. 80, 81. Illustrirte 2\aturgctc]iichte des Thier- 

 reichs, i. 11 ; Leipzig, 1880. 



