Sumatran Orangutan – Pongo abelii

Pongo abeliiLesson, 1827

Accepted name, Mammal Species of the World 2005

On the nomenclature, see Groves and Holthuis (1985). Reviewed by Groves (1971a, Mammalian Species, 4). Considered a species separate from P. pygmaeus by Groves (2001c), who summarized several previous sources suggesting this.

• Wilson, D and Reeder, D. (eds.) 2005. Mammal Species of the World. A Taxonomic and Geographic Reference. 3rd ed. -- 2142 pp. Johns Hopkins University Press.