Grey gibbon can refer to three species of
gibbon in the genus ''
Hylobates''
endemic
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found else ...
to
Borneo
Borneo (; id, Kalimantan) is the third-largest island in the world and the largest in Asia. At the geographic centre of Maritime Southeast Asia, in relation to major Indonesian islands, it is located north of Java, west of Sulawesi, and ea ...
, all of which were formerly classified in a single species, ''H. muelleri'':
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Western grey gibbon or Abbott's grey gibbon, ''Hylobates abbotti''
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Eastern grey gibbon
The eastern grey gibbon or northern grey gibbon (''Hylobates funereus'') is a primate in the gibbon family, Hylobatidae.
Taxonomy
Formerly, the eastern grey gibbon and western grey gibbon (''H. abbotti'') were considered conspecific with the ...
or northern grey gibbon, ''Hylobates funereus''
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Southern grey gibbon or Müller's gibbon, ''Hylobates muelleri''{{Animal common name