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Text and photos by Nick Baker, unless credited to others.
Copyright ゥ Ecology Asia 2024



Stump-tailed Macaque

Family : Cercopithecidae
Species : Macaca arctoides

Head-body length : 48-63 cm
Weight : 8-12 kg

The Stump-tailed Macaque occurs in a variety of habitats on mainland Southeast Asia, including primary or secondary forest, degraded forest-edge and low scrub. It is restricted to hilly or montane areas, up to 2000 metres elevation.

This macaque spends most of its time on the ground, but it can climb trees when required. It is mainly a fruit eater, but it will also consume other parts of plants, such as seeds and buds, supplemented by small invertebrates, such as insects and more rarely small vertebrates.

Its body form is stocky and muscular, rather like the Northern Pig-tailed Macaque, but in contrast its tail is reduced to a short stump of just a few centimetres. Its fur is typically dark brown, but sometimes blackish. Adult males typically have long, shaggy fur on the top and sides of the head. The skin on the face is devoid of fur and is reddish in colour. Infants have sparse, but long, white fur.

Large troupes of this macaque, comprising many tens of individuals, may be encountered. Their temperament may be unpredictable: typically they will flee from confrontation with humans, but at other times may be emboldened and  aggressive.

The Stump-tailed Macaque occurs in hilly and mountainous areas of northern India (Assam), northern Myanmar, southern China, western and southern Thailand, extreme northern Peninsular Malaysia, Laos, Cambodia and Vietnam.

Fig 1 : Young adult with medium brown fur, and typical reddish face, caught on camera trap.

Fig 2 : An adult strides purposefully through habitat comprising a mosaic of young trees, and rough grassland at Virachey National Park, Cambodia.

Fig 3 : Adult female at Kaeng Krachan National Park, Thailand.

Fig 4 : The short, stumpy tail is visible in this image of a sub-adult. Note the bulging cheek pouch.

Fig 5 : A pink-skinned infant with white fur suckles from its mother.

Images 1 and 2 from Virachey National Park, Cambodia, thanks to Greg McCann.

Images 3 to 5 from Kaeng Krachan National Park, Thailand thanks to Charles Currin.

Links :

HabitatID, Virachey National Park

References : M3, M5


Fig 1
ゥ Greg McCann

Fig 2
ゥ Greg McCann
Fig 3
ゥ Charles Currin
Fig 4

ゥ Charles Currin

Fig 5

ゥ Charles Currin