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The purple-faced langur (Semnopithecus vetulus), [1] also known as the purple-faced leaf monkey, is a species of Old World monkey that is endemic to Sri Lanka.The animal is a long-tailed arboreal species, identified by a mostly brown appearance, dark face (with paler lower face) and a very shy nature.
Deforestation harms the monkey in several ways. The western purple-faced langur is naturally folivorous, and its biology is specialized for a diet that consists primarily of leaves. With leaves less available, the monkey's diet consists largely of cultivated fruit taken from people's gardens, which does not give them much nutrition. [8]
Purple-faced langur Semnopithecus vetulus; Nilgiri langur Semnopithecus johnii; In addition, Semnopithecus dussumieri has been determined to be invalid. [12] [16] [17] [18] Most of the range that had been considered S. dussumieri is now considered S. entellus. [15] [16] Thus the current generally accepted species within the genus Semnopithecus ...
The mantled howler (Alouatta palliata) has widespread distribution within Central America. Geoffroy's tamarin is the smallest Central American monkey, with an average size of about 0.5 kilograms (1.1 lb). [12] The Central American squirrel monkey and Panamanian night monkey are almost as small, with average sizes of less than 1.0 kilogram (2.2 lb).
The order Primates consists of 505 extant species belonging to 81 genera. This does not include hybrid species or extinct prehistoric species. Modern molecular studies indicate that the 81 genera can be grouped into 16 families; these families are divided between two named suborders and are grouped in those suborders into named clades, and some of these families are subdivided into named ...
The Colobinae or leaf-eating monkeys are a subfamily of the Old World monkey family that includes 61 species in 11 genera, including the black-and-white colobus, the large-nosed proboscis monkey, and the gray langurs. Some classifications split the colobine monkeys into two tribes, while others split them into three groups.
The Six-Eared Macaque—and not to be mistaken for the Macaque King (獼猴王), one of the same Seven Sages (七聖) Fraternity of Sworn Brothers, that Sun Wukong is a member of—is, according to the Buddha, one of the four spiritual primates that do not belong to any of the ten categories that all beings in the universe are classified under.
The classification of the Nilgiri langur has been disputed. Traditionally it has been placed within the genus Trachypithecus based on morphological similarities such as cranial morphology and neonatal pelage color, and within the Trachypithecus vetulus group within Trachypithecus based on a presumed close relationship with the purple-faced langur (Semnopithecus vetulus), which had formerly ...