Presbytis natunae (Thomas & Hartert, 1894)
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publication ID |
https://doi.org/ 10.5281/zenodo.6867065 |
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DOI |
https://doi.org/10.5281/zenodo.6863408 |
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persistent identifier |
https://treatment.plazi.org/id/CE199B17-FF9E-FF9B-FF2B-60CFFEF7F46A |
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treatment provided by |
Jonas |
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scientific name |
Presbytis natunae |
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120. View Plate 48: Cercopithecidae
Natuna Islands Langur
French: Langur des Natuna / German: Natuna-Langur / Spanish: Langur de Natuna
Other common names: Natuna Island Surili, Natuna Leaf Monkey
Taxonomy. Semnopithecus natunae Thomas & Hartert, 1894 ,
Indonesia, Bunguran Island, North Natuna Islands.
P. natunae has been variously considered a subspecies of P. femoralis , P. siamensis , and P. melalophos , but it is now regarded as a valid species. Monotypic.
Distribution. Natuna Is (Buguran I), off the NW coast of Borneo. View Figure
Descriptive notes. Head-body 43-61 cm, tail 61-84 cm; weight 5.9-8.2 kg. The Natuna Islands Langur is dark grayish-brown above, with head and lower parts of limbs blacker. White of underside extends to backs of thighs, chest, chin, and sometimes wrists and ankles, although not under tail. Cheek whiskers are exceptionally bushy and prominent, being mainly white except for their upper margins. Forehead whorl or whorls are absent or very indistinct. White eye-rings are very large, especially below eyes, but their upper and lower halves do not connect. Buccal depigmentation extends to the nose, with an additional, slightly depigmented area bordering frontal hair on, and lateral to, the glabella. Chest hairs are directed outward, except at the midline.
Habitat. Primary and logged forest and rubber tree plantations.
Food and Feeding. There is no information available for this species.
Breeding. There is no information available for this species.
Activity patterns. The Natuna Islands Langur is diurnal and arboreal.
Movements, Home range and Social organization. Social groups of the Natuna Islands Langur are small, averaging 3-5 individuals.
Status and Conservation. CITES Appendix II. Classified as Vulnerable on The IUCN Red List. The Natuna Islands Langur is not protected under Indonesian law. It is threatened by forest loss and degradation (logging) and possibly offshore petroleum production and defense facilities. Natuna Islands Langurs are often kept as pets. There are no protected areas in its distribution. In 2002, the total population was estimated at less than 10,000 individuals in two subpopulations.
Bibliography. Brandon-Jones et al. (2004), Groves (2001), Lammertink et al. (2003), Napier (1985), Nijman & Lammertink (2008).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
