M. m. brevicaudus, also referred to as Pithecus brevicaudus (Elliot, 1913), lives on the Hainan Island and Wanshan Islands in Guangdong, and the islands near Hong Kong; it may be synonymous with M. m. mulatta.
M. m. brevicaudus, tamén denominado Pithecus brevicaudus (Elliot, 1913), vive na illa de Hainan e Illas Wanshan en Guangdong e nas illas próximas a Hong Kong; pode ser sinónimo de M. m. mulatta.