The pig-tailed macaques are two
macaque
The macaques () constitute a genus (''Macaca'') of gregarious Old World monkeys of the subfamily Cercopithecinae. The 23 species of macaques inhabit ranges throughout Asia, North Africa, and Europe (in Gibraltar). Macaques are principally f ...
sister species
In phylogenetics, a sister group or sister taxon, also called an adelphotaxon, comprises the closest relative(s) of another given unit in an evolutionary tree.
Definition
The expression is most easily illustrated by a cladogram:
Taxon A and ...
. They appear similar and are best distinguished by their
parapatric ranges:
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Northern pig-tailed macaque (''Macaca leonina''), inhabiting Bangladesh to Vietnam, south to northern Malaysia
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Southern pig-tailed macaque
The southern pig-tailed macaque (''Macaca nemestrina''), also known as the Sundaland pig-tailed macaque and the Sunda pig-tailed macaque, is a medium-sized macaque that lives in Sundaland, southern Thailand, Malaysia, and Indonesia. It is known ...
(''Macaca nemestrina''), also called beruk, inhabiting Northern Malaysia and southern Thailand to Borneo and western Indonesia
{{Animal common name