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Gray-headed lemur
Conservation status
Critically Endangered  (IUCN 3.1)
CITES Appendix I (CITES)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Primates
Suborder:	Strepsirrhini
Family:	Lemuridae
Genus:	Eulemur
Species:	E. cinereiceps
Binomial name
Eulemur cinereiceps Grandidier & A. Milne-Edwards, 1890
Distribution of E. cinereiceps
Synonyms
albocollaris Rumpler, 1975

The gray-headed lemur (Eulemur cinereiceps), or gray-headed brown lemur, is a medium-sized primate, a cathemeral species of lemur in the family Lemuridae. Until a taxonomic revision in 2008, it was known as the white-collared brown lemur or white-collared lemur (Eulemur albocollaris). It lives in south-eastern Madagascar. In 2005, satellite imagery estimates showed approximately 700 km (270 sq mi) of total remaining habitat within its geographic range. It is highly threatened by hunting and habitat loss, and was considered to be among the 25 most endangered primates in 2006–2008. It is currently listed as Critically Endangered by the International Union for Conservation of Nature (IUCN) due to a highly restricted range, and has been named one of "The World's 25 Most Endangered Primates."

The gray-headed lemur is only found in southeastern Madagascar, from the Manampatrana River south to the Mananara River.

Change in taxonomy

Recent genetic and morphological evidence has suggested that the former name, E. albocollaris, was actually a junior synonym of E. cinereiceps. Consequently, the common name gray-headed lemur and the scientific name Eulemur cinereiceps were resurrected to replace white-collared brown lemur and E. albocollaris respectively.

Previously, this species was listed as a subspecies of the common brown lemur until elevated to species status in 2001. However, genetic and field studies still support subspecies status under the biological species concept.

References

1. ^ Johnson, S.; Andriamisedra, T.R.; Donohue, M.E.; Ralainasolo, F.B.; Birkinshaw, C.; Ludovic, R.; Ratsimbazafy, J. (2020). "Eulemur cinereiceps". IUCN Red List of Threatened Species. 2020: e.T8205A115562060. doi:10.2305/IUCN.UK.2020-2.RLTS.T8205A115562060.en. Retrieved 19 November 2021.
2. "Checklist of CITES Species". CITES. UNEP-WCMC. Retrieved 18 March 2015.
3. 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. ISBN 0-801-88221-4. OCLC 62265494.
4. ^ Mittermeier, Russell A.; Ganzhorn, Jörg U.; Konstant, William R.; et al. (2008). "Lemur Diversity in Madagascar". International Journal of Primatology. 29 (6): 1607–1656. doi:10.1007/s10764-008-9317-y. hdl:10161/6237. ISSN 0164-0291. S2CID 17614597.
5. ^ Ganzhorn, J.; et al. (2006). Lemurs of Madagascar (2nd ed.). Conservation International. pp. 251 & 280. ISBN 1-881173-88-7.
6. Mittermeier, Russell A.; Ratsimbazafy, Jonah; Rylands, Anthony B.; et al. (2007). "Primates in Peril: The World's 25 Most Endangered Primates, 2006–2008". Primate Conservation. 22 (1): 1–40. doi:10.1896/052.022.0101. hdl:1893/1360. ISSN 0898-6207. S2CID 198157959.
7. Mittermeier, R.A.; Wallis, J.; Rylands, A.B.; et al., eds. (2009). Primates in Peril: The World's 25 Most Endangered Primates 2008–2010 (PDF). Illustrated by S.D. Nash. Arlington, VA: IUCN/SSC Primate Specialist Group (PSG), International Primatological Society (IPS), and Conservation International (CI). pp. 1–92. ISBN 978-1-934151-34-1. Archived from the original (PDF) on 10 August 2011.
8. Garbutt (2007). Mammals of Madagascar, A Complete Guide. A&C Black Publishers. pp. 163–4. ISBN 978-0-300-12550-4.
9. Johnson, Steig E.; Lei, Runhua; Martin, Sara K.; Irwin, Mitchell T.; Louis, Edward E. (2008). "Does Eulemur cinereiceps exist? Preliminary evidence from genetics and ground surveys in southeastern Madagascar". American Journal of Primatology. 70 (4): 372–385. doi:10.1002/ajp.20501. ISSN 0275-2565. PMID 18027864. S2CID 42066627.

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• IUCN Red List critically endangered species
• True lemurs
• Endemic fauna of Madagascar
• Mammals of Madagascar
• Critically endangered fauna of Africa
• Mammals described in 1890
• Fauna of the Madagascar lowland forests
• Taxa named by Alfred Grandidier
• Taxa named by Alphonse Milne-Edwards
• Lemur stubs