Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Cladus: Synapsida
Cladus: Eupelycosauria
Cladus: Sphenacodontia
Cladus: Sphenacodontoidea
Cladus: Therapsida
Cladus: Theriodontia
Cladus: Cynodontia
Cladus: Eucynodontia
Cladus: Probainognathia
Cladus: Prozostrodontia
Cladus: Mammaliaformes
Classis: Mammalia
Subclassis: Trechnotheria
Infraclassis: Zatheria
Supercohors: Theria
Cohors: Eutheria
Infraclassis: Placentalia
Cladus: Boreoeutheria
Superordo: Euarchontoglires
Ordo: Primates
Subordo: Strepsirrhini
Infraordo: Lemuriformes
Superfamilia: Lorisoidea
Familia: Lorisidae
Subfamiliae: Lorisinae – Perodicticinae – †Mioeuoticinae
Genera incertae sedis: †Namaloris
Genera dubia: Pseudopotto
Conspectus generum
Arctocebus – Loris – Nycticebus – Perodicticus – Xanthonycticebus – †Microloris – †Mioeuoticus – †Namaloris – †Nycticeboides
Name
Lorisidae Gray, 1821: 298 ["Loridae"]
References
Primary references
Gray, J.E. 1821. On the Natural Arrangement of Vertebrose Animals. London Medical Repository 15: 296–310. HathiTrust. Reference page.
Additional references
Groves, C.P. 2005. Order Primates. Pp. 111–184 in Wilson, D.E. & Reeder, D.M. (eds.) . Mammal Species of the World: a taxonomic and geographic reference. 3rd edition. The Johns Hopkins University Press: Baltimore. 2 volumes. ISBN 978-0-8018-8221-0. Reference page.
Nekaris, K.A.-I. 2013. Family Lorisidae (Angwantibos, Pottos and Lorises). Pp. 210–235 in Mittermeier, R.A., Rylands, A.B. & Wilson, D.E. (Eds.) . Handbook of the Mammals of the World. Volume 3. Primates. Lynx Edicions: Barcelona. ISBN 978-84-96553-89-7 Reference page.
Links
Lorisidae in Mammal Species of the World.
Wilson, Don E. & Reeder, DeeAnn M. (Editors) 2005. Mammal Species of the World – A Taxonomic and Geographic Reference. Third edition. ISBN 0-8018-8221-4.
Vernacular names
čeština: Outloňovití
日本語: ロリス科
македонски: Лорија
português: Lorisídeos
svenska: Lorier
ไทย: ลิงลม, นางอาย
Türkçe: Lorigiller
中文: 懒猴科
Lorisidae (or sometimes Loridae) is a family of strepsirrhine primates. The lorisids are all slim arboreal animals and comprise the lorises, pottos and angwantibos. Lorisids live in tropical, central Africa as well as in south and southeast Asia.
Classification
See also: List of lorisoids
There are five genera and sixteen species of lorisid.[1]
Order Primates
- Suborder Strepsirrhini: non-tarsier prosimians
- Infraorder Lemuriformes
- Superfamily Lemuroidea
- Superfamily Lorisoidea
- Family Lorisidae
- Subfamily Perodicticinae
- Genus Arctocebus, angwantibos
- Genus Perodicticus, pottos
- Subfamily Lorisinae
- Genus Loris, slender lorises
- Genus Nycticebus, slow lorises
- Genus Xanthonycticebus, pygmy slow loris[3]
- Subfamily Perodicticinae
- Family Galagidae: galagos
- Family Lorisidae
- Infraorder Lemuriformes
- Suborder Haplorrhini: tarsiers, monkeys and apes
Description
Lorisids have a close, woolly fur, which is usually grey or brown, darker on the top side. The eyes are large and face forward. The ears are small and often partially hidden in the fur. The thumbs are opposable and the index finger is short. The second toe of the hind legs has a fine claw for grooming, typical for strepsirrhines. Their tails are short or are missing completely. They grow to a length of 17 to 40 cm and a weight of between 0.3 and 2 kg, depending on the species. Their dental formula is similar to that of lemurs: 2.1.3.32.1.3.3
Behavior and ecology
Lorisids are nocturnal and arboreal. Unlike the closely related galagos, lorisids never jump. Some have slow deliberate movements, whilst others can move with some speed across branches. It was previously thought that all lorisids moved slowly, but investigations using red light proved this to be wrong. Nonetheless, even the faster species freeze or move slowly if they hear or see any potential predator. This habit of remaining motionless whilst in danger is successful only because of the leafy environment of their jungle home, which helps to conceal their true position.[4] With their strong hands they clasp at the branches and cannot be removed without significant force. Most lorisids are solitary or live in small family groups.
Slow lorises from southeast Asia produce a secretion from their brachial gland (a scent gland on the upper arm, between the axilla and elbow), that is licked and mixed with their saliva to form a toxin which may be used for defense. The red slender loris (Loris tardigradus) from India also possesses brachial glands, but it is uncertain whether they also synthesize the toxin. The potto (Perodicticus potto) is thought to lack brachial glands, though it produces similar toxic excretions with its anal glands.[5]
Lorisids have a gestation period of four to six months and give birth to two young. These often clasp themselves to the belly of the mother or wait in nests, while the mother goes to search for food. After three to nine months - depending on the species - they are weaned and are fully mature within 10 to 18 months. The life expectancy of lorises can be to up to 20 years.
Lorisids consume insects, bird eggs and small vertebrates as well as fruits and gums.[6][7][8][9]
References
Groves, C. P. (2005). Wilson, D. E.; Reeder, D. M. (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Baltimore: Johns Hopkins University Press. pp. 121–123. ISBN 0-801-88221-4. OCLC 62265494.
Brandon-Jones, D.; Eudey, A. A.; Geissmann, T.; Groves, C. P.; Melnick, D. J.; Morales, J. C.; Shekelle, M.; Stewart, C.-B. (2004). "Asian Primate Classification" (PDF). International Journal of Primatology. 25 (1): 100. doi:10.1023/b:ijop.0000014647.18720.32. S2CID 29045930.
Nekaris, K. Anne-Isola; Nijman, Vincent (2022-03-23). "A new genus name for pygmy lorises, Xanthonycticebus gen. nov. (Mammalia, primates)". Zoosystematics and Evolution. 98 (1): 87–92. doi:10.3897/zse.98.81942. ISSN 1860-0743. S2CID 247649999.
Charles-Dominique, Pierre (1984). Macdonald, D. (ed.). The Encyclopedia of Mammals. New York: Facts on File. pp. 332–337. ISBN 0-87196-871-1.
Alterman 1995, pp. 421–423.
Estes, R. D. (1991). The Behavior Guide to African Mammals. University of California Press. pp. 458. ISBN 978-0520080850.
Svensson, M.; Nekaris, K.A.I. (2019). "Arctocebus aureus". IUCN Red List of Threatened Species. 2019: e.T2053A17969875. Retrieved 24 December 2019.
"Slender loris - Introspective World". anintrospectiveworld.blogspot.ca. 14 May 2013. Retrieved 5 April 2018.
Streicher, U.; Singh, M.; Timmins, R.J. & Brockelman, W. (2008). "Nycticebus bengalensis". IUCN Red List of Threatened Species. 2008: e.T39758A10263081. doi:10.2305/IUCN.UK.2008.RLTS.T39758A10263081.en. Retrieved 24 December 2019.
Literature cited
Alterman, L. (1995). "Toxins and toothcombs: potential allospecific chemical defenses in Nycticebus and Perodicticus". In Alterman, L.; Doyle, G.A.; Izard, M.K (eds.). Creatures of the Dark: The Nocturnal Prosimians. New York, New York: Plenum Press. pp. 413–424. ISBN 978-0-306-45183-6. OCLC 33441731.
Retrieved from "http://en.wikipedia.org/"
All text is available under the terms of the GNU Free Documentation License
