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The Javan surili (Presbytis comata) is a vulnerable species of Old World monkey endemic to the western half of Java, Indonesia, a biodiversity hotspot.Other common names by which it is known by include gray, grizzled or Sunda Island surili; grizzled or stripe-crested langur; Javan grizzled langur; grizzled, Java or Javan leaf monkey; langur gris.
The Nilgiri langur (Semnopithecus johnii) is an Asian langur of the Old World monkey. It has glossy, black fur and an orangey-golden brown, hair-like mane on its head. Females have a white patch of fur on the inner thigh. It typically lives in troops of nine to ten individuals, with or without offspring, depending on seasonality.
The doucs or douc langurs make up the genus Pygathrix. They are colobine Old World monkeys , native to Southeast Asia , which consists of these 3 species: red-shanked douc , black-shanked douc , and gray-shanked douc .
Delacour's langur is somewhat larger than its two closest relatives, François' langur and the Laotian langur, but in other respects has a similar appearance.Adults measure from 57 to 62 cm (22 to 24 in) in head-body length, with a tail 82 to 88 mm (3.2 to 3.5 in) long.
Miller's langur (Presbytis canicrus), also known as Miller's grizzled langur or Kutai grey langur, is a species of leaf monkey. It is endemic to East Kalimantan on the island of Borneo in Indonesia. It is one of the world's most endangered primates, and was at one time thought to be extinct, until it was rediscovered in 2012.
The East Javan langur (Trachypithecus auratus), also known as the ebony lutung, Javan langur or Javan lutung, is an Old World monkey from the Colobinae subfamily. It is most commonly glossy black with a brownish tinge to its legs, sides, and " sideburns ". [ 3 ]
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
Female langurs hold a pregnancy for 195–210 days, and after the birth the offsprings are taken closely cared for by the mother until they are about 12–20 weeks old. Western purple-faced langurs are tree-dwelling animals, and live in groups of up to 14, where a harem of female monkeys, their offsprings and a male in a position of superiority ...