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contour of the skull ; we derive additional proof that the Simia Satyrus 

 of Linnceus ( ! ) is subject to a greater amount of variety in the state of 

 nature, than has hitherto been observed in any other Quadrumanous 

 species." The italics are Owen's. With such variations existing, and 

 no cranial characters, or particular coloration of the fur pointing to a 

 specific separation, the creation of distinct forms of Ourangs is at 

 best, but a doubtful procedure, for all the indications we have in both 

 skins and skeletons seem to point to but one existing species of this Ape 

 in both Borneo and Sumatra ; but one having almost unlimited cranial 

 variations in the adult male. 



The brain of the Ourang, like those of all Quadrumana acquires 

 its full development before the second set of teeth is completed. 



The only large collection of Ourang skulls in Europe, or in fact 

 anywhere, is the one procured by Herr Selenka and brought with him 

 to Munich. Herr Selenka did not himself go into the interior of 

 Borneo, but made his headquarters at Pontianak on the west coast, and 

 very few of his specimens were collected by himself, but were procured 

 for him by native hunters chiefly The entire material consisted of 

 several hundred skulls and a considerable number of skins, but these 

 last were very much fewer than the crania, for it would seem as if 

 Herr Selenka attached much more importance to the skulls than he 

 did to the outside covering of the animals. This material formed the 

 basis for the various papers written by Herr Selenka on the Ourang, 

 and with which Zoologists are familiar. It was therefore with great 

 hopes of clearing up various difficult points, and especially arriving at 

 a satisfactory conclusion as to the validity of the variously described 

 species, that I went to Munich to examine the collection. It was in 

 the Anthropological section of the Academy, but, alas, it was not the 

 collection that Selenka brought back with him, for he had sold all the 

 skins, probably to dealers, for no one knows where they went, nor 

 what has become 9f them, it is only known they have most effectually 

 disappeared. About 280 of the skulls were sold to the Department 

 of Anthropology, and these are all that remain of the collection. The 

 first thing that one notices on examining this series of skulls, is how 

 few there are of old adult males, the great majority of them being those 

 of young animals, many very young, and females, some adult. Another 

 fact that impresses one is that not a single skull in the entire collection 

 has any particular locality attached to it. It may have been that Herr 

 Selenka did not pay much attention to particular localities, or not 

 being able to verify them himself, as he did not go into the interior, 

 he may have been aware that he could not place implicit trust upon 



