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Keywords from Image Description:
PZSLPlate. Cercopithecus leucampyx nigrigenis PocockWolf MatschieMatschie PocockNeumann Pous Pousargues Waterh Waterhouse en Heads of guenon monkeys of the mitis group from lateral Pluto Monkey Stuhlmann's Blue Monkey Pousargues' Sykes' Monkey Bioko Puttynosed Monkey Proceedings of the Zoological Society of London org vol