Arunachal macaque It is the first species of macaque to have been discovered since 1903, when the Indonesian Pagai Island macaque was discovered. This monkey was reported on the basis of a good quality photograph as the holotype. In 2011, some researchers suggested, on the basis of morphological variation within the Assamese macaque, that it might be better treated as a subspecies. Subsequently, it was also discovered in Bhutan, where it was observed and photographed in the Trashi Yangshi area in 2006. The Arunachal macaque is compactly built and has a very dark face. It lives at high altitudes, between 2000 m
Stump-tailed macaque southern China into the northwest tip of West Malaysia on the Malay Peninsula. It is also found in Burma, Thailand, Laos, Cambodia and Vietnam. It is possibly extinct from Bangladesh. A study population was introduced to Tanaxpillo, an uninhabited island in Lake Catemaco, Veracruz, Mexico in 1974, where it ranges in seminatural conditions. Most information on the species comes from the introduced population on Tanaxpillo and other captive settings, as few long-term studies have been conducted on the stump-tailed macaque in the wild. Stump-tailed macaque The stump-tailed macaque ("Macaca arctoides"), also called the bear macaque, is a species of macaque