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Trachypithecus is a genus of Old World monkeys containing species known as lutungs, langurs, or leaf monkeys. Their range is much of Southeast Asia.
The Nilgiri langur 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. Its diet consists of fruits, shoots and leaves. It is listed as vulnerable on the IUCN Red List and is threatened by habitat destruction and poaching for its body parts, thought to supposedly contain aphrodisiac properties.
Goodman's mouse lemur is a species of mouse lemur from the region near Andasibe in eastern Madagascar. The species is named in honor of primatologist Steven M. Goodman. "Lehilahytsara" is a combination of the Malagasy words which mean "good" and "man". The finding was presented August 10, 2005, along with the discovery of the northern giant mouse lemur as a separate species.
The Marca's marmoset is a species of marmoset that is endemic to the Amazon, in the Aripuanã-Manicoré interfluvium in Brazil. Its body is light grey, with orange legs, a black tail, a pinkish face, and naked ears. It is about 9 inches (23 cm) long, excluding the tail, and it has a 15-inch (38 cm) long tail. It weighs about 12 ounces (340 g).
The East Javan langur, 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". It is found on the island of Java, as well as on several of the surrounding Indonesian islands. The Latin word auratus in its scientific name means "golden", and refers to a less common color variant. Note that the common name golden langur is used for a different species.
Delacour's langur or Delacour's lutung is a critically endangered species of Old World monkey endemic to northern Vietnam. It is named for French-American ornithologist Jean Théodore Delacour.
The mouse lemurs are nocturnal lemurs of the genus Microcebus. Like all lemurs, mouse lemurs are native to Madagascar.
Germain's langur is an Old World monkey native to Thailand, Myanmar, Cambodia, Laos and Vietnam. The monkey was previously included in Trachypithecus cristatus and Trachypithecus villosus.
Mico is a genus of New World monkeys of the family Callitrichidae, the family containing marmosets and tamarins. The genus was formerly considered a subgenus of the genus Callithrix.
The western purple-faced langur, also known as the north lowland wetzone purple-faced langur, is a subspecies of purple-faced langur endemic to Sri Lanka. It lives in the wet zone in western Sri Lanka around the former capital city of Colombo. This subspecies are known to live in tropical rainforest, specifically in an area of Sri Lanka, where it is noted to rain two times more compared to the neighboring region. The subspecies is generally gray-brown with lighter whiskers, a gray rump patch, and dark forearms and legs. These monkeys also have dark brown or black, hairless faces. Their hands and feet are also hairless. When infants, their fur is medium brown to light gray, however it changes to their darker adult colors at between 12 and 16 weeks old. Typical length is between 48 and 67 centimetres excluding tail, with a 59 to 85 centimetres tail. On average, males weigh 8.5 kilograms (19 lb) and females weigh 7.8 kilograms (17 lb). Their average life span is about 26 years if the monkey was held in captivity. Due to their leafy diet, the western purple-faced langur back teeth, include high crowns and pointed cusps to make eating through greenery simpler. They also developed a digestive system that would allow them to break down cellulose in the leaves they eat. Although, leaves are their primary source of food, they also eat fruits and flowers. 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.
Jonah Ratsimbazafy is a Malagasy primatologist. In 2020, he was appointed President of the International Primatological Society.
The Selangor silvered langur is a species of leaf monkey found on the west coast of Peninsular Malaysia. It had been previously considered a form of silvery lutung. Roos and colleagues elevated this population to a subspecies level, Trachypithecus cristatus selangorensis, in 2008. It has since come to be regarded by primatologists as a separate species, Trachypithecus selangorensis.
The West Javan langur is an Old World monkey from the Colobinae subfamily. It was formerly considered a subspecies of Trachypithecus auratus until it was elevated to a separate species by Roos and Groves. It is listed as vulnerable by the IUCN. Its range is restricted to the island of Java west of Jakarta. Its range is currently restricted to Ujung Kulon National Park, Muara Angke Wildlife Reserve and Muara Gembong due to industrial development, habitat fragmentation and the disconnection of protected areas. They are known to eat the leaves and fruits of Sonneratia in mangroves.
The Annamese langur is an Old World monkey from the Colobinae subfamily. It was formerly considered a subspecies of Trachypithecus germaini until it was elevated to a separate species by Roos and Groves in 2008. Its fur is lighter in colour than that of Trachypithecus germaini. Its range includes parts of Cambodia, Laos and Vietnam.
The Popa langur is a species of primate in the family Cercopithecidae. It occurs only in Myanmar and was named after Mount Popa, where a population of 100 of the monkeys live. It is listed as Critically Endangered on the IUCN Red List, as the wild population is thought to comprise 200 to 250 mature individuals.
The Shan State langur is a subspecies of primate in the family Cercopithecidae. It is found in eastern Myanmar and southwest China. While it is typically considered a subspecies or even a synonym of Phayre's leaf monkey, it is sometimes listed as a full species.
Microcebus jonahi, or Jonah's mouse lemur, is a tiny species of primate. It weighs 60 g (2.1 oz) and has a body length of around 13 cm (5.1 in) and its tail measures around 13 cm as well. It is the 25th recognized species of mouse lemur and the 108th recognized species of lemur.
References
- ↑ Mittermeier, Russell A.; Rylands, Anthony B. (1 September 2021). "New primates described from 1 January 1990 to 1 September 2021". IUCN/SSC Primate Specialist Group. Retrieved 15 September 2021.
- ↑ Schüßler, Dominik; Blanco, Marina B.; Salmona, Jordi; Poelstra, Jelmer; Andriambeloson, Jean B.; Miller, Alex; Randrianambinina, Blanchard; Rasolofoson, David W.; Mantilla-Contreras, Jasmin; Chikhi, Lounès; Louis, Edward E.; Yoder, Anne D.; Radespiel, Ute (2020). "Ecology and morphology of mouse lemurs ( Microcebus spp.) in a hotspot of microendemism in northeastern Madagascar, with the description of a new species". American Journal of Primatology. 82 (9): e23180. doi: 10.1002/ajp.23180 . PMID 32716088. S2CID 220797785.
- ↑ Roos, Christian M.; Helgen, Kristofer; Portela Miguez, Roberto; May Lay Thant, Naw; Lwin, Ngwe; Ko Lin, Aung; Lin, Aung; Mar Yi, Khin; Soe, Paing; Mar Hein, Zin; Nyein Nyein Myint, Margaret; Ahmed, Tanvir; Chetry, Dilip; Urh, Melina; Grace Veatch, E.; Duncan, Neil; Kamminga, Pepijn; Chua, Marcus A. H.; Yao, Lu; Matauschek, Christian; Meyer, Dirk; Liu, Zhi-Jin; Li, Ming; Nadler, Tilo; Fan, Peng-Fei; Khac Quyet, Le; Hofreiter, Michael; Zinner, Dietmar; Momberg, Frank (2020). "Mitogenomic phylogeny of the Asian colobine genus Trachypithecus with special focus on Trachypithecus phayrei (Blyth, 1847) and description of a new species". Zoological Research. 41 (6): 656–669. doi:10.24272/j.issn.2095-8137.2020.254. PMC 7671912 . PMID 33171548.
- ↑ Costa-Araújo, Rodrigo; Silva, José S.; Boubli, Jean P.; Rossi, Rogério V.; Canale, Gustavo R.; Melo, Fabiano R.; Bertuol, Fabrício; Silva, Felipe E.; Silva, Diego A.; Nash, Stephen D.; Sampaio, Iracilda; Farias, Izeni P.; Hrbek, Tomas (2021). "An integrative analysis uncovers a new, pseudo-cryptic species of Amazonian marmoset (Primates: Callitrichidae: Mico) from the arc of deforestation". Scientific Reports. 11 (1): 15665. doi:10.1038/s41598-021-93943-w. PMC 8328995 . PMID 34341361.