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Show 1 9 0 4 .] ANTHROPOID APES. 4 3 3 takes the latter. I am convinced that this is the right view to take, and that many who side with Professor Matschie go too far in splitting up the forms of Orang. Dr. Selenka gives a very plausible and, I believe, well justified explanation for the existence of a number of local races in Borneo, viz., that the Orang - Outans cannot swim and can only climb mountains, when bare of trees, with difficulty; and as Borneo is intersected in all directions by broad rivers and high mountain-ranges, the Orangs in the various districts are almost as much isolated as if confined to separate islands. Text-fig. 114. Head of Simia pygmceus chimpanse Matscliie. (From life.) Dr. Selenka separates 8 races of Orangs from Borneo and Sumatra, 4 with cheek-callosities and 4 without, so that, as I consider these two forms dimorphic phases, he distinguishes actually 4 distinct subspecies. Professor Matschie distinguishes 14 races, or, as he calls them, species, from Borneo and Sumatra, P roc. Z ool. S oc.- 1 9 0 4 , V o l . II. N o . XXVIII. 28 |
