Rhesus and Crab-Eating Macaques: Intergradation in Thailand

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Science  24 Jan 1964:
Vol. 143, Issue 3604, pp. 363-364
DOI: 10.1126/science.143.3604.363


Conspecificity of the rhesus macaque, Macaca mulatta mulatta (Zimmermann, 1780), and the crab-eating macaque Macaca mulatta fascicularis (Raffles [1821]), is established by a geographically intermediate series of three specimens transitional in tail length and coat color.