Pongo abelii Lesson 1827

Pongo abelii Lesson 1827, Manuel de Mammalogie: 32.

Type Locality: Indonesia, Sumatra.

Vernacular Names: Sumatran Orangutan.

Synonyms: Pongo abongensis (Selenka 1896); Pongo bicolor (I. Geoffroy 1843); Pongo deliensis (Selenka 1896); Pongo gigantica (Pearson 1841); Pongo langkatensis (Selenka 1896) .

Distribution: Sumatra, NW of Lake Toba (Indonesia).

Conservation: CITES – Appendix I and U.S. ESA as included in P. pygmaeus; IUCN – Critically Endangered.

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