Template:Ogilby, 1840

• Ogilby, W. 1840. On a new Species of Gibbon (Hylobates leucogenys). Proceedings of the Zoological Society of London Part VIII: 20–21. BHL  
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Nomenclatural acts

• Date of publication: July 1840 [​Sclater, 1893]

New names

(List may be incomplete)

• Hylobates leucogenys (n. sp.) [p. 20]
• Hylobates niger (n. sp.) [p. 21]