Slow loris

genus of mammals

Slow lorises are the genus Nycticebus, nocturnal species of strepsirrhine primates. They live in southeast Asia and nearby areas.

Slow lorises
Sunda slow loris
Nycticebus coucang
CITES Appendix I (CITES)
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Primates
Suborder: Strepsirrhini
Family: Lorisidae
Subfamily: Lorinae
Genus: Nycticebus
É. Geoffroy, 1812[1]
Type species
Nycticebus coucang
Boddaert, 1785
Range map showing ranges of several species: the Sunda slow loris complex (N. coucang) in Thailand, Malaysia, and Indonesia; the Bengal slow loris (N. bengalensis) in east India, China, Bangladesh, Bhutan, Burma, Thailand, Laos, Vietnam, and Cambodia; and the pygmy slow loris (N. pygmaeus) in Vietnam and Laos.
Distribution of Nycticebus
red = N. pygmaeus;
blue = N. bengalensis;
brown = N. bancanus, N. borneanus, N. coucang, N. javanicus, N. kayan & N. menagensis

There are about eight species: the Sunda slow loris (N. coucang), Bengal slow loris (N. bengalensis), pygmy slow loris (N. pygmaeus), Javan slow loris (N. javanicus), Philippine slow loris (N. menagensis), Bangka slow loris (N. bancanus), Bornean slow loris (N. borneanus), and Kayan River slow loris (N. kayan).

The group's closest relatives are the slender lorises of southern India and Sri Lanka. Their next closest relatives are the African lorisids, the pottos, false pottos, and angwantibos. They are less closely related to the remaining lorisoids (the various types of galago), and more distantly to the lemurs of Madagascar.[4] Their evolutionary history is uncertain: their fossil record is patchy and molecular clock studies have given various results.

Slow lorises eat insects, small birds and reptiles, eggs, fruits, gums, nectar and some vegetation. A 1984 study of the Sunda slow loris found its diet was 71% fruit and gums, and 29% insects and other animal prey. A more detailed study of another Sunda slow loris population in 2002 and 2003 showed different dietary proportions: 43.3% gum, 31.7% nectar, 22.5% fruit, and just 2.5% arthropods and other animal prey.[5]

References change

  1. Groves 2005, pp. 122–123.
  2. "Table 2 b: taxonomic names and synonyms used by several authors: genus, species, subspecies, populations" (PDF). Loris and potto conservation database. 4 February 2003. p. 3. Retrieved 30 April 2013.
  3. "Synonyms of Slow Lorises (Nycticebus)". Encyclopedia of Life. Archived from the original on 5 December 2013. Retrieved 30 April 2013.
  4. Bearder, Simon K. 1987. Lorises, bushbabies, and tarsiers: diverse societies in solitary foragers. In Smuts, Barbara B. et al (eds) Primate societies. Chicago, Illinois: The University of Chicago Press. ISBN 0-226-76716-7
  5. Nekaris K.A.I. & Bearder S.K. 2007. Chapter 3: The lorisiform primates of Asia and mainland Africa: diversity shrouded in darkness. In Campbell, C. et al (eds) Primates in perspective. New York: Oxford University Press. ISBN 978-0-19-517133-4