Artist Unknown (anonymous Chinese artist).
Title
English: Onka' Pootie; white long armed ape.
Description
English: A watercolour drawing of the lar gibbon or white-handed gibbon (Hylobates lar, known in Malay as ungka tangan putih). The tree may be a bignay (also known as the bugnay, bignai or currant tree, Antidesma bunius), or it may simply be from the artist's imagination. The drawing is one of 477 natural history drawings of plants and animals of Malacca and Singapore commissioned by William Farquhar.
Date between 1819 and 1823.
Medium watercolor on paper.
Source: https://commons.wikimedia.org/wiki/File:Onka%27_Pootie_(William_Farquhar_Collection,_1819%E2%80%931823).jpg

The lar gibbon (Hylobates lar), also known as the white-handed gibbon, is an endangered primate in the gibbon family, Hylobatidae. Lar gibbons are found in Indonesia, Laos, Malaysia, Myanmar and Thailand.