Biology:The World's 25 Most Endangered Primates

Short description: List of highly-endangered primate species

The silky sifaka (Propithecus candidus), found only in Madagascar , has been on The World's 25 Most Endangered Primates list since its inception in 2000. Between 100 and 1,000 individuals are left in the wild.

The World's 25 Most Endangered Primates is a list of highly endangered primate species selected and published by the International Union for Conservation of Nature (IUCN) Species Survival Commission (SSC) Primate Specialist Group (PSG), the International Primatological Society (IPS), Global Wildlife Conservation (GWC), and Bristol Zoological Society (BZS).^[1] The IUCN/SSC PSG worked with Conservation International (CI) to start the list in 2000, but in 2002, during the 19th Congress of the International Primatological Society, primatologists reviewed and debated the list, resulting in the 2002–2004 revision and the endorsement of the IPS. The publication was a joint project between the three conservation organizations until the 2012–2014 list when BZS was added as a publisher.^[2] The 2018–2020 list was the first time Conservation International was not among the publishers, replaced instead by GWC. The list has been revised every two years following the biannual Congress of the IPS.^[1] Starting with the 2004–2006 report, the title changed to "Primates in Peril: The World's 25 Most Endangered Primates".^[3] That same year, the list began to provide information about each species, including their conservation status and the threats they face in the wild.^[4] The species text is written in collaboration with experts from the field, with 60 people contributing to the 2006–2008 report^[5] and 85 people contributing to the 2008–2010 report.^[4] The 2004–2006 and 2006–2008 reports were published in the IUCN/SSC PSG journal Primate Conservation,^[3]^[6], since then they have been published as independent publications.^[4]^[7]^[2]^[8]^[9]^[1]

The 25 species on the 2018–2020 list are distributed between 32 countries. The country with the most species on the list is Madagascar with five species, Indonesia, Brazil , Ghana, and Cote d'Ivoire each have three. The list is broken into four distinct regions: the island of Madagascar, the continent of Africa, the continent of Asia including the islands of Indonesia, and the Neotropics (Central and South America).^[1]

The purpose of the list, according to Russell Mittermeier, the president of CI, is "to highlight those [primate species] that are most at risk, to attract the attention of the public, to stimulate national governments to do more, and especially to find the resources to implement desperately needed conservation measures."^[10] Species are selected for the list based on two primary reasons: extremely small population sizes and very rapid drops in numbers. These reasons are heavily influenced by habitat loss and hunting, the two greatest threats primates face. More specifically, threats listed in the report include deforestation due to slash-and-burn agriculture, clearing for pasture or farmland, charcoal production, firewood production, illegal logging, selective logging, mining, land development, and cash crop production; forest fragmentation; small population sizes; live capture for the exotic pet trade; and hunting for bushmeat and traditional medicine.^[4] Twelve species were dropped for the 2018–2020 list, Mittermeier notes this was not because their situation has improved but instead to focus attention on other species that are also have "bleak prospects for their survival.^[1]

Key

Key for column headings
Species	Common and scientific name of the species, including a picture if available
Years listed	Years the species has been included in the IUCN's list of the "Top 25 Most Endangered Primates"
Location(s)	Countries in which it is found
Estimated population	Latest population estimate from the IUCN
IUCN status	Conservation status of the species, per the IUCN as of the date of the latest list publication
Threats	A list of threats facing the species; used by the IUCN in assessing conservation status

Current list

The World's 25 Most Endangered Primates, 2018–2020: Madagascar^[1]
Species	Years listed	Location(s)	Estimated population	IUCN status	Threats
Bemanasy mouse lemur Microcebus manitatra	2018	Madagascar	unknown	1 Critically Endangered ^[11]	loss of habitat (agricultural encroachment)
Lac Alaotra bamboo lemur Hapalemur alaotrensis	2000 2014 2016 2018	Madagascar	2,500 (2018 estimate)	1 Critically Endangered ^[12]	loss of habitat (agricultural encroachment, burning of marshlands [to create rice paddies, catch fish, and for cattle grazing] hunting (bushmeat) live capture (local pet trade)
James' sportive lemur Lepilemur jamesorum	2016 2018	Madagascar	1,386 (2010 estimate)	1 Critically Endangered ^[13]	habitat loss (shifting agriculture) hunting (bushmeat) live capture (pet trade)
Indri Indri indri	2012 2018	Madagascar	unknown	1 Critically Endangered ^[14]	loss of habitat (slash-and-burn agriculture, firewood) hunting (bushmeat, skins)
Aye-aye Daubentonia madagascariensis	2016 2018	Madagascar	unknown	1 Endangered ^[15]	habitat loss (selective logging for local use [boats, houses, coffins], agricultural encroachment, fire) hunting (pests, local taboos, bushmeat)

The World's 25 Most Endangered Primates, 2012–2014: Africa^[2]
Species	Years listed	Location(s)	Estimated population	IUCN status	Threats
Rondo dwarf galago Galagoides rondoensis	2006 2008 2010 2012	Tanzania	unknown	1 Critically Endangered ^[16]	very small range habitat loss and fragmentation (agricultural encroachment, charcoal production, logging)
Roloway monkey Cercopithecus roloway	2002 2006 2008 2010 2012	Côte d'Ivoire Ghana	unknown	1 Endangered ^[17]	hunting (bushmeat) habitat loss and fragmentation (agricultural encroachment, charcoal production, logging)
Tana River red colobus Procolobus rufomitratus	2002 2004 2006 2008 2012	Kenya	1,100–1,300	1 Endangered ^[18]	hunting (bushmeat) habitat loss and fragmentation (agricultural encroachment, fire, firewood, selective logging for local use [houses, canoes]) habitat degradation (livestock, dam construction, irrigation projects) parasitic infection of isolated populations
Bioko red colobus Piliocolobus pennantii pennantii	2004 2006 2010 2012	Equatorial Guinea (Bioko Island)	fewer than 5,000	1 Endangered ^[19]	habitat degradation hunting (bushmeat) small range
Eastern lowland gorilla Gorilla beringei graueri	2010 2012	Democratic Republic of the Congo	5,000	1 Critically Endangered ^[20]	habitat loss and fragmentation (agricultural encroachment, pastoral farming, illegal mining, charcoal production, wood and bamboo harvesting) hunting (bushmeat, infant capture)

The World's 25 Most Endangered Primates, 2012–2014: Asia^[2]
Species	Years listed	Location(s)	Estimated population	IUCN status	Threats
Javan slow loris Nycticebus javanicus	2008 2010 2012	Indonesia (Java)	unknown	1 Critically Endangered ^[21]	live capture (pet trade [intense]) hunting (traditional medicine [intense]) habitat loss (agriculture, development activities [roads], human disturbance)
Pig-tailed langur Simias concolor	2002 2004 2006 2008 2010 2012	Indonesia (Mentawai Islands)	700–3,347	1 Critically Endangered ^[22]	habitat loss (human encroachment, product extraction, commercial logging, conversion to cash crops and oil palm plantations) hunting (bushmeat) live capture (pet trade)
Delacour's langur Trachypithecus delacouri	2000 2002 2004 2006 2008 2010 2012	Vietnam	fewer than 250	1 Critically Endangered ^[23]	habitat fragmentation hunting (bushmeat, traditional medicine)
Golden-headed langur Trachypithecus poliocephalus	2000 2002 2004 2006 2008 2010 2012	Vietnam	60–70	1 Critically Endangered ^[24]	habitat fragmentation (human encroachment, development for tourism) hunting (bushmeat, traditional medicine)
Western purple-faced langur Semnopithecus vetulus nestor	2004 2006 2008 2010 2012	Sri Lanka	unknown	1 Critically Endangered ^[25]	habitat loss and fragmentation (urbanization, agricultural encroachment) dependent on gardens for survival live capture (pet trade) hunting (pests) other human factors (electrocution [power lines], road kill, dog attacks)
Grey-shanked douc Pygathrix cinerea	2000 2002 2004 2006 2008 2010 2012	Vietnam	600–700	1 Critically Endangered ^[26]	restricted range habitat loss and fragmentation (agricultural encroachment, illegal logging, firewood) hunting (bushmeat, traditional medicine) live capture (pet trade)
Tonkin snub-nosed monkey Rhinopithecus avunculus	2000 2002 2004 2006 2008 2010 2012	Vietnam	200–250	1 Critically Endangered ^[27]	habitat loss and fragmentation (logging, firewood, roads) hunting (bushmeat, traditional medicine)
Eastern black crested gibbon Nomascus nasutus	2008 2010 2012	China Vietnam	around 110	1 Critically Endangered ^[28]	habitat loss, fragmentation, and disturbance (agricultural encroachment, pastoral farming, firewood, charcoal production) hunting (bushmeat)
Pygmy tarsier Tarsius pumilus	2012	Indonesia (Sulawesi)	unknown	1 Data deficient ^[29]	habitat loss (human encroachment)

The World's 25 Most Endangered Primates, 2012–2014: Neotropics^[2]
Species	Years listed	Location(s)	Estimated population	IUCN status	Threats
Brown spider monkey Ateles hybridus	2004^{[N 1]} 2006 2008 2010 2012	Colombia Venezuela	unknown	1 Critically Endangered ^[30]	habitat loss and fragmentation (agricultural encroachment, cattle-ranching, logging) hunting (bushmeat) live capture (pet trade)
Brown-headed spider monkey Ateles fusciceps fusciceps	2006 2012	Ecuador	unknown	1 Critically Endangered ^[31]	habitat loss and fragmentation hunting (bushmeat)
Kaapori capuchin Cebus kaapori	2012	Brazil	unknown	1 Critically Endangered ^[32]	habitat loss and degradation (selective logging) hunting (bushmeat) live capture (pet trade)
Rio Mayo titi Callicebus oenanthe	2012	Peru	unknown	1 Critically Endangered ^[33]	habitat loss and fragmentation (rice and coffee plantations, roads, cattle-ranching) hunting (bushmeat) live capture (pet trade)
Northern brown howler Alouatta guariba guariba	2012	Brazil	fewer than 250	1 Critically Endangered ^[34]	habitat loss (selective logging) hunting (bushmeat) disease epidemics

Former list members

With each new publication, species are both added and removed from the list. In some cases, removal from the list signifies improvement for the species. With the publication of the 2006–2008 list, four species were removed because of increased conservation efforts: the black lion tamarin (Leontopithecus chrysopygus), golden lion tamarin (Leontopithecus rosalia), mountain gorilla (Gorilla beringei beringei), and Perrier's sifaka (Propithecus perrieri).^[35] In 2008, the black lion tamarin went from critically endangered to endangered and the golden lion tamarin was similarly promoted in 2003 after three decades of collaborative conservation efforts by zoos and other institutions. Well-protected species such as these still have very small populations, and due to deforestation, new habitat is still needed for their long-term survival.^[10] The Hainan black crested gibbon (Nomascus hainanus), which was removed from the 2008–2010 list, still has fewer than 20 individuals left, but significant efforts to protect it are now being made.^[4] Mittermeier claimed in 2007 that all 25 species could be elevated off the list within five to ten years if conservation organizations had the necessary resources.^[35]

Unlike the changes in the 2006–2008 report, not all species were removed from the 2008–2010 list due to improvement in their situation. Instead, new species were added to bring attention to other closely related species with very small populations that are also at risk of extinction. For example, the highly endangered eastern black crested gibbon (Nomascus nasutus) replaced the Hainan black crested gibbon. The Javan slow loris (Nycticebus javanicus) replaced the Horton Plains slender loris (Loris tardigradus nycticeboides) because the former has been hit the hardest of Asian lorises, all of which are declining rapidly due primarily to capture for the exotic pet trade, as well as use in traditional medicines and forest loss. In another case, the brown-headed spider monkey (Ateles fusciceps fusciceps) was omitted from the list since no spokesperson could be found for the species.^[4] The same approach was taken with the 2012–2014 list.^[2]

Primates formerly listed in the *Top 25 Most Endangered Primates*: Madagascar^[4]^[7]^[2]^[8]^[9]
Species	Years listed	Location(s)	Estimated population	IUCN status	Threats
Greater bamboo lemur Prolemur simus	2002 2004 2006 2008 2010	Madagascar	500 or fewer	1 Critically Endangered ^[36]	small, isolated populations loss of habitat and fragmentation (slash-and-burn agriculture, mining, illegal logging, cutting of bamboo) hunting (bushmeat) reduced availability of drinking water due to climatic change extreme dietary specialization and dependency on giant bamboo
Black-and-white ruffed lemur Varecia variegata	2010	Madagascar	unknown	1 Critically Endangered ^[37]	loss of habitat and fragmentation (slash-and-burn agriculture, mining, logging) hunting (bushmeat)
Gray-headed lemur Eulemur cinereiceps	2004 2006 2008	Madagascar	7,265 ± 2,268	1 Endangered ^[38]	very small range (~700 km²) hybridization with red-fronted lemur (E. rufifrons) low population densities habitat loss and fragmentation (fragmented, small populations) cyclones hunting (bushmeat)
Golden-crowned sifaka Propithecus tattersalli	2000	Madagascar	6,000–10,000^[39]	1 Endangered ^[39]	hunting (by gold miners) loss of habitat (slash-and-burn agriculture, uncontrolled grass fires, wood extraction [housing & firewood], selective logging, gold mining)^[39]
Golden bamboo lemur Hapalemur aureus	2000	Madagascar	fewer than 5,916^[40]	1 Endangered ^[40]	loss of habitat (slash-and-burn agriculture, cutting of bamboo [for building houses, carrying water, making baskets and other local uses]) hunting (bushmeat)^[40]
Sahamalaza sportive lemur Lepilemur sahamalazensis	2006	Madagascar	unknown	1 Data deficient ^[41]	loss of habitat (agricultural encroachment, charcoal production, selective logging for local use [houses]) hunting (bushmeat)^[41]
Perrier's sifaka Propithecus perrieri	2000 2002 2004 2014 2016	Madagascar	around 915^[42]	1 Critically Endangered ^[42]	loss of habitat (slash-and-burn agriculture, charcoal production, fires to clear forest for pasture, mining) hunting (bushmeat)^[42]
Blue-eyed black lemur Eulemur flavifrons	2008 2010 2012	Madagascar	450–2,300	1 Critically Endangered ^[43]	very small range (~2,700 km²) loss of habitat (slash-and-burn agriculture, selective logging) hunting (bushmeat) live capture (pet trade)
Northern sportive lemur Lepilemur septentrionalis	2008 2010 2012	Madagascar	around 19	1 Critically Endangered ^[44]	very small range habitat loss (firewood, charcoal production, Eucalyptus plantations) hunting (bushmeat)
Silky sifaka Propithecus candidus	2000 2002 2004 2006 2008 2010 2012	Madagascar	fewer than 250	1 Critically Endangered ^[45]	very small range hunting (bushmeat) habitat loss (slash-and-burn agriculture, illegal logging, firewood)
Madame Berthe's mouse lemur Microcebus berthae	2012	Madagascar	fewer than 8,000	1 Critically Endangered ^[46]	loss of habitat and fragmentation (slash-and-burn agriculture, illegal logging)
Red ruffed lemur Varecia rubra	2012	Madagascar	unknown	1 Critically Endangered ^[47]	loss of habitat (slash-and-burn agriculture, illegal logging, human encroachment) hunting (bushmeat)
Lavasoa Mountains dwarf lemur Cheirogaleus lavasoensis	2014	Madagascar	?^[48]	1 Endangered ^[48]
Gerp's mouse lemur Microcebus gerpi	2016	Madagascar	?^[49]	1 Critically Endangered ^[49]
Ring-tailed lemur Lemur catta	2016	Madagascar	?^[50]	1 Endangered ^[50]

Primates formerly listed in the *Top 25 Most Endangered Primates*: Africa^[4]^[2]
Species	Years listed	Location(s)	Estimated population	IUCN status	Threats
Mount Rungwe galago Galagoides sp.	2004	Tanzania	unknown	Not evaluated	loss of habitat (logging, agricultural encroachment, charcoal production) hunting (bushmeat)^[3]
Sclater's guenon Cercopithecus sclateri	2000	Nigeria	unknown	1 Vulnerable ^[51]	habitat loss and fragmentation (logging, agricultural encroachment, oil exploration) high human density hunting (bushmeat)^[51]
Drill Mandrillus leucophaeus	2000	Cameroon Equatorial Guinea (Bioko) Nigeria	unknown	1 Endangered ^[52]	small range loss of habitat (clearcutting [for chipboard factories and settlement]) hunting (bushmeat, persecution as pests)^[52]
Tana River mangabey Cercocebus galeritus galeritus	2002	Kenya	1,000–1,200^[53]	1 Endangered ^[53]	loss of habitat (palm oil production, logging, agricultural encroachment, grass fires intended to prevent forest regeneration, overgrazing, damming and irrigation projects) hunting (persecution as pests)^[53]
Sanje mangabey Cercocebus sanjei	2000 2002 2004	Tanzania	fewer than 1,300^[54]	1 Endangered ^[54]	loss of habitat (logging, charcoal production) hunting (persecution as pests)^[54]
Sooty mangabey Cercocebus atys lunulatus	2000 2002 2004	Côte d'Ivoire Ghana	unknown	1 Endangered ^[55]	habitat loss and degradation hunting (bushmeat)^[55]
Miss Waldron's red colobus Piliocolobus badius waldronae	2000 2002 2006	Côte d'Ivoire Ghana	unknown	1 Critically Endangered ^[56]	very small populations (recent, very rapid declines in numbers) habitat loss hunting (bushmeat)^[56]
Mountain gorilla Gorilla beringei beringei	2000 2002 2004	Rwanda Uganda	around 880	1 Critically Endangered ^[57]	two isolated populations political instability human diseases hunting (bushmeat)^[57]
Niger Delta red colobus Procolobus epieni	2008 2010	Nigeria	unknown	1 Critically Endangered ^[58]	very small range (~1,500 km²) hunting (bushmeat) habitat loss and degradation (logging of important food trees, loss of marsh forests due to canal construction)
Kipunji Rungwecebus kipunji	2006 2008	Tanzania	around 1,117	1 Critically Endangered ^[59]	very small range habitat loss and fragmentation hunting (bushmeat)
Cross River gorilla Gorilla gorilla diehli	2000 2002 2004 2006 2008	Cameroon Nigeria	200–300	1 Critically Endangered ^[60]	small, restricted range habitat loss (agricultural encroachment, fires to clear forest or improve pasture, development activities [roads]) hunting (bushmeat, wire snares set for other wildlife)

Primates formerly listed in the *Top 25 Most Endangered Primates*: Asia^[4]
Species	Years listed	Location(s)	Estimated population	IUCN status	Threats
Horton Plains slender loris Loris tardigradus nycticeboides	2004 2006	Sri Lanka	unknown	1 Endangered ^[61]	five isolated populations habitat loss hunting (bushmeat)^[61]
Natuna Island surili Presbytis natunae	2002	Indonesia	fewer than 10,000^[62]	1 Vulnerable ^[62]	two isolated populations habitat loss and degradation live capture (pet trade)^[62]
White-headed langur Trachypithecus poliocephalus leucocephalus	2002	China, Vietnam	fewer than 250	1 Critically Endangered ^[63]	very small populations (recent, very rapid declines in numbers) habitat loss hunting^[63]
Miller's grizzled langur Presbytis hosei canicrus	2004	Indonesia (Kalimantan)	unknown	1 Endangered ^[64]	habitat loss and fragmentation hunting^[64]
Black snub-nosed monkey Rhinopithecus bieti	2002	China	fewer than 2,000^[65]	1 Endangered ^[65]	habitat loss (logging, fires for agricultural use, pasture) pesticide use hunting (non-targeted [snares])^[65]
Gray snub-nosed monkey Rhinopithecus brelichi	2002	China	around 750^[66]	1 Endangered ^[66]	one isolated population (vulnerable to epidemic disease or catastrophes) habitat loss (forest clearing, development for tourism, agricultural expansion, firewood) hunting (non-targeted)^[66]
Silvery gibbon Hylobates moloch	2000	Indonesia (Java)	4,000–4,500^[67]	1 Endangered ^[67]	habitat loss and fragmentation live capture (pet trade)^[67]
Hainan black crested gibbon Nomascus hainanus	2000 2004 2006	China (Hainan)	around 20^[68]	1 Critically Endangered ^[68]	extremely small population size suboptimal, protected habitat possible gender bias in recent births hunting (bushmeat)^[68]
Siau Island tarsier Tarsius tumpara	2006 2008 2010	Indonesia (Siau Island)	Low thousands at best	Not evaluated	island population (near an active volcano) very small range high human density hunting [bushmeat (used as snack food)] habitat degradation
Western hoolock gibbon Hoolock hoolock	2006 2008	Bangladesh India Myanmar	fewer than 5,000	1 Endangered ^[69]	very small populations (recent, very rapid declines in numbers) habitat loss and fragmentation (human encroachment, tea plantations, slash-and-burn cultivation) hunting (bushmeat, traditional medicine) live capture (pet trade)
Sumatran orangutan Pongo abelii	2000 2002 2004 2006 2008	Indonesia (Sumatra)	around 6,600	1 Critically Endangered ^[70]	recent, very rapid declines in numbers only 10 fragmented habitat units habitat loss and fragmentation (fires, agriculture and oil palm plantations, roads, logging, encroachment) hunting (pests, bushmeat) [occasional] live capture (pet trade) [occasional]
Northwest Bornean orangutan Pongo pygmaeus pygmaeus	2010	Indonesia (West Kalimantan, Borneo) Malaysia (Sarawak)	unknown	1 Endangered ^[71]	habitat loss and fragmentation (fires, agriculture and oil palm plantations, roads, logging, encroachment) hunting (pests, bushmeat, traditional medicine) live capture (pet trade)
Lion-tailed macaque Macaca silenus	2010	India	fewer than 4,000	1 Endangered ^[72]	habitat loss and fragmentation (agriculture and tea/coffee plantations, logging) hunting (bushmeat, traditional medicine)

Primates formerly listed in the *Top 25 Most Endangered Primates*: Neotropics^[4]
Species	Years listed	Location(s)	Estimated population	IUCN status	Threats
Golden lion tamarin Leontopithecus rosalia	2000	Brazil (Rio de Janeiro)	3,200^[73]	1 Endangered ^[73]	habitat loss and fragmentation (fires to clear forest for pasture) live capture (pet trade)^[73]
Black lion tamarin Leontopithecus chrysopygus	2000	Brazil (São Paulo)	around 1,000^[74]	1 Endangered ^[74]	small population size (11 isolated populations, but only one is viable) habitat loss and fragmentation^[74]
Superagui lion tamarin Leontopithecus caissara	2000 2002 2004	Brazil (Paraná and São Paulo)	fewer than 400^[75]	1 Critically Endangered ^[75]	small, isolated populations habitat loss and degradation (agricultural encroachment, palm heart harvesting, tourism) high human density (increased squatting by impoverished people, land speculation) hunting (bushmeat)^[75]
Golden-bellied capuchin Cebus xanthosternos	2000 2002 2004	Brazil (Bahia, Minas Gerais?)	unknown	1 Critically Endangered ^[76]	habitat loss hunting (bushmeat)^[76]
Northern muriqui Brachyteles hypoxanthus	2000 2002 2004	Brazil (Bahia, Espírito Santo, Minas Gerais)	fewer than 1,000^[77]	1 Critically Endangered ^[77]	small, isolated populations habitat loss and fragmentation hunting (bushmeat [past], sport [past])^[77]
Yellow-tailed woolly monkey Oreonax flavicauda	2000 2006 2008 2010	Peru	unknown	1 Critically Endangered ^[78]	restricted range low population densities habitat loss (agriculture, logging, roads, colonization) hunting (bushmeat, fur) live capture (pet trade)
Cotton-top tamarin Saguinus oedipus	2008	Colombia	fewer than 6,000	1 Critically Endangered ^[79]	habitat loss and fragmentation (large-scale agricultural production [cattle] and farming, logging, oil palm plantations, hydroelectric projects) live capture (pet trade [current], biomedical research [past])
Blond capuchin Cebus flavius	2010	Brazil	180	1 Critically Endangered ^[80]	habitat loss and fragmentation (coastal development and sugar cane plantations) live capture (pet trade) hunting (bushmeat)

List history

With the exception of the 2000–2002 publication, which was written collaboratively by the IUCN/SSC PSG and CI, the list has been revised every two years following the biannual Congress of the IPS. The 2002–2004 list resulted from the 19th Congress of the IPS in Beijing, China; the 2004–2006 list followed the 20th Congress of the IPS, held in Torino, Italy; the 2006–2008 list after the 21st Congress in Entebbe, Uganda; the 2008–2010 list followed the 22nd Congress held in Edinburgh, UK; the 2010-2012 list followed the 23rd Congress in Kyoto, Japan; the 2012–2014 list after the 24th Congress in Cancún, Mexico; the 2014–2016 list after the 25th Congress in Hanoi, Vietnam; the 2016–2018 list after the 26th Congress in Chicago, US; the 2018–2020 list after the 27th Congress in Nairobi, Kenya; and the 2022–2023 list after the 28th Congress in Quito, Ecuador.^[4]

The 2008 IUCN Red List of Threatened Species offered assessments of 634 primate taxa, of which 303 (47.8%) were listed as threatened (vulnerable, endangered, or critically endangered). A total of 206 primate species were ranked as either critically endangered or endangered, 54 (26%) of which have been included at least once in The World's 25 Most Endangered Primates since 2000.^[4]

Historical membership^[4]
	Madagascar	Africa	Asia	Neotropics
2000–2002	Propithecus candidus^{[N 2]} Propithecus perrieri^{[N 3]} Propithecus tattersalli Hapalemur aureus Hapalemur griseus alaotrensis^{[N 4]}	Gorilla gorilla diehli Gorilla b. beringei^{[N 5]} Cercocebus sanjei^{[N 6]} Cercocebus atys lunulatus Procolobus badius waldronae^{[N 7]} Cercopithecus sclateri Mandrillus leucophaeus	Trachypithecus delacouri Trachypithecus p. poliocephalus^{[N 8]} Pygathrix cinerea^{[N 9]} Rhinopithecus avunculus Pongo abelii Hylobates moloch Nomascus hainanus^{[N 10]}	Brachyteles hypoxanthus Cebus xanthosternos Leontopithecus caissara Leontopithecus rosalia Leontopithecus chrysopygus Oreonax flavicauda^{[N 11]}
2002–2004	Propithecus candidus Propithecus perrieri Prolemur simus	Gorilla gorilla diehli Gorilla b. beringei Cercocebus galeritus sanjei Cercocebus atys lunulatus Procolobus badius waldronae^{[N 7]} Procolobus rufomitratus Cercopithecus diana roloway Cercocebus g. galeritus	Trachypithecus delacouri Trachypithecus p. poliocephalus^{[N 8]} Pygathrix cinerea^{[N 9]} Rhinopithecus avunculus Pongo abelii Simias concolor Presbytis natunae Trachypithecus poliocephalus leucocephalus^{[N 12]} Rhinopithecus bieti Rhinopithecus brelichi Nomascus nasutus	Brachyteles hypoxanthus Cebus xanthosternos Leontopithecus caissara
2004–2006	Propithecus candidus Propithecus perrieri Prolemur simus Eulemur cinereiceps^{[N 13]}	Gorilla gorilla diehli Gorilla b. beringei^{[N 5]} Cercocebus galeritus sanjei Cercocebus atys lunulatus Procolobus rufomitratus Procolobus p. pennantii Galagoides sp.	Trachypithecus delacouri Trachypithecus p. poliocephalus Pygathrix cinerea Rhinopithecus avunculus Pongo abelii Simias concolor Loris tardigradus nycticeboides Presbytis hosei canicrus Trachypithecus vetulus nestor Nomascus hainanus^{[N 10]}	Brachyteles hypoxanthus Cebus xanthosternos Leontopithecus caissara Ateles hybridus brunneus
2006–2008	Propithecus candidus Lepilemur sahamalazensis Prolemur simus Eulemur cinereiceps^{[N 13]}	Gorilla gorilla diehli Procolobus rufomitratus Procolobus p. pennantii Cercopithecus diana roloway Rungwecebus kipunji Galagoides rondoensis Procolobus badius waldroni^{[N 7]}	Trachypithecus delacouri Trachypithecus p. poliocephalus Pygathrix cinerea Rhinopithecus avunculus Pongo abelii Simias concolor Trachypithecus vetulus nestor Hoolock hoolock Nomascus hainanus Loris tardigradus nycticeboides Tarsius tumpara^{[N 14]}	Ateles hybridus^{[N 1]} Oreonax flavicauda Ateles f. fusciceps^{[N 15]}
2008–2010	Propithecus candidus Lepilemur septentrionalis Prolemur simus Eulemur cinereiceps Eulemur flavifrons	Gorilla gorilla diehli Procolobus rufomitratus Cercopithecus diana roloway Rungwecebus kipunji Galagoides rondoensis Procolobus epieni	Trachypithecus delacouri Trachypithecus p. poliocephalus Pygathrix cinerea Rhinopithecus avunculus Pongo abelii Simias concolor Semnopithecus vetulus nestor Hoolock hoolock Tarsius tumpara Nycticebus javanicus Nomascus nasutus	Ateles hybridus^{[N 1]} Oreonax flavicauda Saguinus oedipus
2010–2012	Eulemur flavifrons Lepilemur septentrionalis Prolemur simus Propithecus candidus Varecia variegata	Cercopithecus diana roloway Galagoides rondoensis Piliocolobus pennantii pennantii Piliocolobus epieni Gorilla beringei graueri	Tarsius tumpara Nycticebus javanicus Macaca silenus Simias concolor Trachypithecus delacouri Trachypithecus poliocephalus Semnopithecus vetulus nestor Pygathrix cinerea Rhinopithecus avunculus Nomascus nasutus Pongo pygmaeus pygmaeus	Ateles hybridus^{[N 1]} Cebus flavius Callicebus barbarabrownae Oreonax flavicauda
2012–2014	Propithecus candidus Lepilemur septentrionalis Eulemur flavifrons Microcebus berthae Varecia rubra Indri indri	Cercopithecus roloway Galagoides rondoensis Piliocolobus pennantii pennantii Piliocolobus rufomitratus Gorilla beringei graueri	Trachypithecus delacouri Trachypithecus p. poliocephalus Pygathrix cinerea Rhinopithecus avunculus Simias concolor Semnopithecus vetulus nestor Tarsius pumilus Nycticebus javanicus Nomascus nasutus	Ateles hybridus^{[N 1]} Ateles fusciceps fusciceps Cebus kaapori Callicebus oenanthe Alouatta guariba guariba
2014–2016	Cheirogaleus lavasoensis Hapalemur alaotrensis Varecia rubra Lepilemur septentrionalis Propithecus perrieri	Galagoides rondoensis Cercopithecus roloway Piliocolobus preussi Piliocolobus rufomitratus Gorilla beringei graueri	Carlito syrichta Nycticebus javanicus Simias concolor Trachypithecus delacouri Trachypithecus poliocephalus Rhinopithecus avunculus Semnopithecus ajax Semnopithecus vetulus nestor Nomascus hainanus Pongo abelii	Ateles hybridus^{[N 1]} Ateles fusciceps fusciceps Cebus kaapori Callicebus oenanthe Alouatta guariba guariba
2016–2018	Microcebus gerpi Hapalemur alaotrensis Lemur catta Lepilemur jamesorum Propithecus perrieri Daubentonia madagascariensis	Paragalago orinus Cercopithecus roloway Colobus vellerosus Piliocolobus epieni Gorilla beringei graueri	Nycticebus javanicus Simias concolor Trachypithecus poliocephalus Rhinopithecus avunculus Trachypithecus geei Semnopithecus vetulus Macaca nigra Nomascus hainanus Pongo pygmaeus	Plecturocebus caquetensis Cebus kaapori Alouatta guariba guariba Ateles geoffroyi Ateles fusciceps
2018–2020	Microcebus manitatra Hapalemur alaotrensis Lepilemur jamesorum Indri indri Daubentonia madagascariensis	Paragalago rondoensis Cercopithecus roloway Rungwecebus kipunji Colobus vellerosus Piliocolobus epieni Piliocolobus rufomitratus Pan troglodytes verus	Nycticebus javanicus Simias concolor Trachypithecus poliocephalus Trachypithecus geei Semnopithecus vetulus Hoolock tianxing Pongo tapanuliensis	Callithrix aurita Saguinus bicolor Cebus aequatorialis Plecturocebus olallae Alouatta guariba Ateles geoffroyi
2022–2023	Microcebus berthae Lepilemur septentrionalis Eulemur flavifrons Propithecus coquereli	Paragalogo rondoensis Cercocebus chrysogaster Erythrocebus baumstarki Cercopithecus roloway Piliocolobus epieni Pan troglodytes ellioti	Nycticebus javanicus Tarsius sangirensis Semnopithecus vetulus Trachypithecus poliocephalus Presbytis femoralis Rhinopithecus brelichi Hoolock tianxing Pongo tapanuliensis	Callithrix flaviceps Cebus kaapori Cebus aequatorialis Plecturocebus grovesi Alouatta guariba Ateles fusciceps fusciceps Ateles geoffroyi

Notes

↑ ^1.0 ^1.1 ^1.2 ^1.3 ^1.4 ^1.5 The subspecies Ateles hybridus brunneus was listed in the 2004–2006 report, but the listing was expanded to cover both subspecies of Ateles hybridus starting with the 2006–2008 report.^[4]^[3]^[6]
↑ In the 2000–2002 report, this lemur was listed as Propithecus diadema candidus, but it has since been reclassified as a separate species, Propithecus candidus.^[4]^[81]^[82]
↑ In the 2000–2002 report, this lemur was listed as Propithecus diadema perrieri, but it has since been reclassified as a separate species, Propithecus perrieri.^[4]^[81]^[82]
↑ In the 2000–2002 report, this lemur was listed as Hapalemur griseus alaotrensis, but it has since been reclassified as a separate species, Hapalemur alaotrensis.^[4]^[81]
↑ ^5.0 ^5.1 In the 2000–2002 and 2004–2006 reports, this gorilla was listed as Gorilla beringei, but other reports instead used Gorilla b. beringei.^[4]^[3]^[81]^[82]
↑ In the 2000–2002 and 2002–2004 reports, the mangabey was listed as Cercocebus galeritus sanjei, but it has since been classified as a separate species, Cercocebus sanjei.^[4]
↑ ^7.0 ^7.1 ^7.2 In the 2000–2002, 2002–2004, and 2006–2008 reports, this colobus monkey was listed as Procolobus badius waldroni, but the spelling of the name has since been corrected to waldronae.^[81]^[82]^[83]
↑ ^8.0 ^8.1 In the 2000–2002 and 2002–2004 reports, this monkey was listed as Trachypithecus poliocephalus, but with other subspecies now recognized by the IUCN, it is now known as Trachypithecus p. poliocephalus.^[4]^[3]^[81]^[82]
↑ ^9.0 ^9.1 In the 2000–2002 and 2002–2004 reports, this douc was listed as Pygathrix nemaeus cinerea, but has since been recognized as a separate species, Pygathrix cinerea.^[4]^[3]
↑ ^10.0 ^10.1 In the 2000–2002 and 2004–2006 reports, this gibbon was listed as Hylobates concolor hainanus, but it has since been recognized as a separate species and placed in the genus Nomascus, so that it is known as Nomascus hainanus.^[4]^[81]
↑ In the 2000–2002 report, this species was listed as Lagothrix flavicauda, but it has since been renamed to Oreonax flavicauda.^[4]
↑ In the 2002–2004 report, this monkey was listed as Trachypithecus leucocephalus, but it is now considered only a subspecies, Trachypithecus poliocephalus leucocephalus.^[4]^[82]
↑ ^13.0 ^13.1 In the 2004–2006 and 2006–2008 reports, this species was listed as Eulemur albocollaris, but it has since been renamed to Eulemur cinereiceps.^[4]
↑ In the 2006–2008 report, this tarsier was listed as "Tarsius sp.", but it has since been formally named as Tarsius tumpara.^[4]^[6]
↑ The species Ateles fusciceps was listed in the 2006–2008 report, but the common name and description match the later identified subspecies, Ateles fusciceps fusciceps.^[6]

References

↑ ^1.0 ^1.1 ^1.2 ^1.3 ^1.4 ^1.5 Schwitzer, C.; Mittermeier, R.A.; Rylands, A.B. et al., eds (2019). Primates in Peril: The World's 25 Most Endangered Primates 2018–2020. Illustrated by S.D. Nash. Washington, DC: IUCN/SSC Primate Specialist Group (PSG), International Primatological Society (IPS), Global Wildlife Conservation (GWC), and Bristol Zoological Society (BZS). pp. 1–130. http://static1.1.sqspcdn.com/static/f/1200343/28239089/1578298071023/Primates_in_Peril_2018-2020.pdf.
↑ ^2.0 ^2.1 ^2.2 ^2.3 ^2.4 ^2.5 ^2.6 ^2.7 Schwitzer, C.; Mittermeier, R.A.; Rylands, A.B. et al., eds (2014). Primates in Peril: The World's 25 Most Endangered Primates 2012–2014. Illustrated by S.D. Nash. Arlington, VA: IUCN/SSC Primate Specialist Group (PSG), International Primatological Society (IPS), Conservation International (CI), and Bristol Zoological Society (BZS). pp. 1–91. http://static1.1.sqspcdn.com/static/f/1200343/25117808/1403888374823/Primates_in_Peril_2012-2014_Full_Report.pdf.
↑ ^3.0 ^3.1 ^3.2 ^3.3 ^3.4 ^3.5 ^3.6 Mittermeier, R.A.; Valladares-Pádua, C.; Rylands, A.B. et al., eds (2006). Illustrated by S.D. Nash. "Primates in Peril: The World's 25 Most Endangered Primates 2004–2006". Primate Conservation 2006 (20): 1–28. doi:10.1896/0898-6207.20.1.1.
↑ ^4.00 ^4.01 ^4.02 ^4.03 ^4.04 ^4.05 ^4.06 ^4.07 ^4.08 ^4.09 ^4.10 ^4.11 ^4.12 ^4.13 ^4.14 ^4.15 ^4.16 ^4.17 ^4.18 ^4.19 ^4.20 ^4.21 ^4.22 ^4.23 ^4.24 ^4.25 Mittermeier, R.A.; Wallis, J.; Rylands, A.B. et al., eds (2009). Primates in Peril: The World's 25 Most Endangered Primates 2008–2010. 24. Illustrated by S.D. Nash. IUCN/SSC Primate Specialist Group (PSG), International Primatological Society (IPS), and Conservation International (CI). 1–92. doi:10.1896/052.024.0101. ISBN 978-1-934151-34-1. http://www.primate-sg.org/storage/PDF/Primates.in.Peril.2008-2010.pdf.
↑ L., Smith (26 October 2007). "Primates in peril: 25 species facing threat of extinction". The Times. http://www.timesonline.co.uk/tol/news/science/article2741670.ece.
↑ ^6.0 ^6.1 ^6.2 ^6.3 Mittermeier, R.A.; Ratsimbazafy, J.; Rylands, A.B. et al., eds (2007). Illustrated by S.D. Nash. "Primates in Peril: The World's 25 Most Endangered Primates 2006–2008". Primate Conservation 22: 1–40. doi:10.1896/052.022.0101.
↑ ^7.0 ^7.1 Mittermeier, R.A.; Schwitzer, C.; Rylands, A.B.; Schwitzer, C.; Taylor, L.A.; Chiozza, F.; Williamson, E.A. (2012). Primates in Peril: The World's 25 Most Endangered Primates 2010–2012. IUCN/SSC Primate Specialist Group (PSG), International Primatological Society (IPS), and Conservation International (CI). pp. 1–40. http://www.primate-sg.org/storage/pdf/Primates_in_Peril_2010-2012.pdf.
↑ ^8.0 ^8.1 Schwitzer, C.; Mittermeier, R.A.; Rylands, A.B. et al., eds (2015). Primates in Peril: The World's 25 Most Endangered Primates 2014–2016. Illustrated by S.D. Nash. Arlington, VA: IUCN/SSC Primate Specialist Group (PSG), International Primatological Society (IPS), Conservation International (CI), and Bristol Zoological Society (BZS). pp. 1–93. http://static1.1.sqspcdn.com/static/f/1200343/26892107/1456949943947/PrimatesInPeril2014-2016.pdf.
↑ ^9.0 ^9.1 Schwitzer, C.; Mittermeier, R.A.; Rylands, A.B. et al., eds (2017). Primates in Peril: The World's 25 Most Endangered Primates 2016–2018. Illustrated by S.D. Nash. Arlington, VA: IUCN/SSC Primate Specialist Group (PSG), International Primatological Society (IPS), Conservation International (CI), and Bristol Zoological Society (BZS). pp. 1–107. http://static1.1.sqspcdn.com/static/f/1200343/27784415/1513890513360/Primates_in_Peril_2016-2018.pdf.
↑ ^10.0 ^10.1 "World's most endangered primates revealed". IUCN News. 18 February 2010. http://www.iucn.org/?4753/Worlds-most-endangered-primates-revealed.
↑ Blanco, M.; Dolch, R.; Donati, G.; Ganzhorn, J.; Greene, L.K.; Le Pors, B.; Lewis, R.; Rafalinirina, H.A. et al. (2020). "Microcebus manitatra". IUCN Red List of Threatened Species 2020: e.T163313848A163313878. https://www.iucnredlist.org/species/163313848/163313878. Retrieved 12 July 2020.
↑ Andrainarivo, C. et al. (2008). "Hapalemur alaotrensis". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/9676/0. Retrieved 1 January 2009. old-form url
↑ Andriamisedra, T.R.; Ranaivoarisoa, F.N.; Ratsimbazafy, J.; Louis, E.E. (2020). "Lepilemur jamesorum". IUCN Red List of Threatened Species 2020: e.T136491A115583306. doi:10.2305/IUCN.UK.2020-2.RLTS.T136491A115583306.en. https://www.iucnredlist.org/species/136491/115583306. Retrieved 28 August 2021.
↑ Andrainarivo, C.Expression error: Unrecognized word "etal". (2008). "Indri indri". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/10826/0. Retrieved 21 March 2013. old-form url
↑ Louis, E.E.; Sefczek, T.M.; Randimbiharinirina, D.R.; Raharivololona, B.; Rakotondrazandry, J.N.; Manjary, D.; Aylward, M.; Ravelomandrato, F. (2020). "Daubentonia madagascariensis". IUCN Red List of Threatened Species 2020: e.T6302A115560793. doi:10.2305/IUCN.UK.2020-2.RLTS.T6302A115560793.en. https://www.iucnredlist.org/species/6302/115560793. Retrieved 28 August 2021.
↑ Perkin, A.; Bearder, S.; Honess, P.; Butynski, T.M. (2008). "Galagoides rondoensis". IUCN Red List of Threatened Species 2008: e.T40652A10350268. doi:10.2305/IUCN.UK.2008.RLTS.T40652A10350268.en. https://www.iucnredlist.org/species/40652/10350268.
↑ Oates, J.F.; Gippoliti, S.; Groves, C.P. (2016). "Cercopithecus roloway". IUCN Red List of Threatened Species 2016: e.T4232A92375108. doi:10.2305/IUCN.UK.2016-1.RLTS.T4232A92375108.en. https://www.iucnredlist.org/species/4232/92375108.
↑ Butynski, T.M.; Struhsaker, T.; De Jong, Y. (2016). "Piliocolobus rufomitratus". IUCN Red List of Threatened Species 2016: e.T136939A92658041. doi:10.2305/IUCN.UK.2016-1.RLTS.T136939A92658041.en. https://www.iucnredlist.org/species/136939/92658041.
↑ Oates, J.F.; Struhsaker, T. (2008). "Piliocolobus pennantii". IUCN Red List of Threatened Species 2008: e.T41025A92653137. doi:10.2305/IUCN.UK.2008.RLTS.T41025A92653137.en. https://www.iucnredlist.org/species/41025/92653137.
↑ Robbins, M.; Hart, J.; Maisels, F.; Mehlman, P.; Nixon, S.; Williamson, L. (2008). "Gorilla beringei ssp. graueri". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/39995/0. Retrieved 21 March 2013. old-form url
↑ Nekaris, A.; Shekelle, M. (2008). "Nycticebus javanicus". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/39761/0. Retrieved 10 August 2010. old-form url
↑ Whittaker, D.; Mittermeier, R.A. (2008). "Simias concolor". IUCN Red List of Threatened Species 2008: e.T20229A9181121. doi:10.2305/IUCN.UK.2008.RLTS.T20229A9181121.en. https://www.iucnredlist.org/species/20229/9181121.
↑ Nadler, T.; Xuan Canh, L.; Ngoc Thanh, V.; Khac Quyet, L. (2008). "Trachypithecus delacouri". IUCN Red List of Threatened Species 2008: e.T22043A9350654. doi:10.2305/IUCN.UK.2008.RLTS.T22043A9350654.en. https://www.iucnredlist.org/species/22043/9350654.
↑ Bleisch, B.; Xuan Canh, L.; Covert, B.; Yongcheng, L. (2008). "Trachypithecus poliocephalus ssp. poliocephalus". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/39871/0. Retrieved 10 August 2010. old-form url
↑ Dittus, W.; Molur, S.; Nekaris, A. (2008). "Trachypithecus vetulus ssp. nestor". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/39844/0. Retrieved 5 August 2010. old-form url
↑ Ngoc Thanh, V.; Lippold, L.; Nadler, T.; Timmons, R. J. (2008). "Pygathrix cinerea". IUCN Red List of Threatened Species 2008: e.T39827A10273229. doi:10.2305/IUCN.UK.2008.RLTS.T39827A10273229.en. https://www.iucnredlist.org/species/39827/10273229.
↑ Xuan Canh, L.; Khac Quyet, L.; Thanh Hai, D.; Boonratana, R. (2008). "Rhinopithecus avunculus". IUCN Red List of Threatened Species 2008: e.T19594A8984679. doi:10.2305/IUCN.UK.2008.RLTS.T19594A8984679.en. https://www.iucnredlist.org/species/19594/8984679.
↑ Bleisch, B.; Geissmann, T. (2008). "Nomascus nasutus". IUCN Red List of Threatened Species 2008: e.T41642A10526189. doi:10.2305/IUCN.UK.2008.RLTS.T41642A10526189.en. https://www.iucnredlist.org/species/41642/10526189.
↑ Shekelle, M.; Salim, A. (2008). "Tarsius pumilus". IUCN Red List of Threatened Species 2008: e.T21490A9288636. doi:10.2305/IUCN.UK.2008.RLTS.T21490A9288636.en. https://www.iucnredlist.org/species/21490/9288636.
↑ Urbani, B.; Morales, A.L.; Link, A.; Stevenson, P. (2008). "Ateles hybridus". IUCN Red List of Threatened Species 2008: e.T39961A10280054. doi:10.2305/IUCN.UK.2008.RLTS.T39961A10280054.en. https://www.iucnredlist.org/species/39961/10280054.
↑ Cuarón, A.D.; Morales, A.; Shedden, A.; Rodríguez-Luna, E.; de Grammont, P.C. (2008). "Ateles fusciceps ssp. fusciceps". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/39922/0. Retrieved 8 September 2010. old-form url
↑ Kierulff, M.C.M.; de Oliveira, M.M. (2008). "Cebus kaapori". IUCN Red List of Threatened Species 2008: e.T40019A10303725. doi:10.2305/IUCN.UK.2008.RLTS.T40019A10303725.en. https://www.iucnredlist.org/species/40019/10303725.
↑ Veiga, L.; Bóveda-Penalba, A.; Vermeer, J.; Tello-Alvarado, J.C.; Cornejo, F. (2008). "Callicebus oenanthe". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/3553/0. Retrieved 21 March 2013. old-form url
↑ Mendes, S.L.; Rylands. A.B.; Kierulff; M.C.M.; de Oliveira, M.M. (2008). "Alouatta guariba ssp. guariba". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/39917/0. Retrieved 21 March 2013. old-form url
↑ ^35.0 ^35.1 M., Casey (26 October 2007). "Primates in Trouble, Says Report on 25 Rarest". National Geographic News. http://news.nationalgeographic.com/news/2007/10/071026-endangered-primates.html.
↑ Andrainarivo, C. et al. (2008). "Prolemur simus". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/9674/0. Retrieved 1 January 2009. old-form url
↑ Andrainarivo, C.Expression error: Unrecognized word "etal". (2008). "Varecia variegata". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/22918/0. Retrieved 21 March 2013. old-form url
↑ Andrainarivo, C.Expression error: Unrecognized word "etal". (2008). "Eulemur cinereiceps". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/8205/0. Retrieved 6 October 2008. old-form url
↑ ^39.0 ^39.1 ^39.2 Andrainarivo, C.Expression error: Unrecognized word "etal". (2008). "Propithecus tattersalli". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/18352/0. Retrieved 1 January 2009. old-form url
↑ ^40.0 ^40.1 ^40.2 Andrainarivo, C. et al. (2008). "Hapalemur aureus". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/9672/0. Retrieved 1 January 2009. old-form url
↑ ^41.0 ^41.1 Olivieri, G.; Schwitzer, C.; Schwitzer, N.; Craul, M. (2008). "Lepilemur sahamalazensis". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/136645/0. Retrieved 1 January 2009. old-form url
↑ ^42.0 ^42.1 ^42.2 Andrainarivo, C. et al. (2008). "Propithecus perrieri". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/18361/0. Retrieved 1 January 2009. old-form url
↑ Andriaholinirina, N.Expression error: Unrecognized word "etal". (2014). "Eulemur flavifrons". IUCN Red List of Threatened Species 2014: e.T8211A16117351. doi:10.2305/IUCN.UK.2014-1.RLTS.T8211A16117351.en. https://www.iucnredlist.org/species/8211/16117351.
↑ Andrainarivo, C. et al. (2008). "Lepilemur septentrionalis". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/11622/0. Retrieved 1 January 2009. old-form url
↑ Andrainarivo, C.Expression error: Unrecognized word "etal". (2008). "Propithecus candidus". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/18360/0. Retrieved 1 January 2009. old-form url
↑ Andrainarivo, C.Expression error: Unrecognized word "etal". (2008). "Microcebus berthae". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/41573/0. Retrieved 21 March 2013. old-form url
↑ Andrainarivo, C.Expression error: Unrecognized word "etal". (2008). "Varecia rubra". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/22920/0. Retrieved 21 March 2013. old-form url
↑ ^48.0 ^48.1 Blanco, M.; Dolch, R.; Donati, G.; Ganzhorn, J.; Greene, L.K.; Le Pors, B.; Lewis, R.; Louis, E.E. et al. (2020). "Cheirogaleus lavasoensis". IUCN Red List of Threatened Species 2020: e.T163022131A163022293. doi:10.2305/IUCN.UK.2020-2.RLTS.T163022131A163022293.en. https://www.iucnredlist.org/species/163022131/163022293. Retrieved 28 August 2021.
↑ ^49.0 ^49.1 Andriaholinirina, N.; Baden, A.; Blanco, M.; Chikhi, L.; Cooke, A.; Davies, N.; Dolch, R.; Donati, G. et al. (2014). "Microcebus gerpi". IUCN Red List of Threatened Species 2014: e.T16971461A16971464. doi:10.2305/IUCN.UK.2014-1.RLTS.T16971461A16971464.en. https://www.iucnredlist.org/species/16971461/16971464. Retrieved 28 August 2021.
↑ ^50.0 ^50.1 LaFleur, M.; Gould, L. (2020). "Lemur catta". IUCN Red List of Threatened Species 2020: e.T11496A115565760. doi:10.2305/IUCN.UK.2020-2.RLTS.T11496A115565760.en. https://www.iucnredlist.org/species/11496/115565760. Retrieved 28 August 2021.
↑ ^51.0 ^51.1 Oates, J.F.; Baker, L.R.; Tooze, Z.J. (2008). "Cercopithecus sclateri". IUCN Red List of Threatened Species 2008: e.T4229A10678392. doi:10.2305/IUCN.UK.2008.RLTS.T4229A10678392.en. https://www.iucnredlist.org/species/4229/10678392.
↑ ^52.0 ^52.1 Oates, J.F.; Butynski, T.M. (2008). "Mandrillus leucophaeus". IUCN Red List of Threatened Species 2008: e.T12753A3377185. doi:10.2305/IUCN.UK.2008.RLTS.T12753A3377185.en. https://www.iucnredlist.org/species/12753/3377185.
↑ ^53.0 ^53.1 ^53.2 Butynski, T.M.; Struhsaker, T.; Kingdon, J.; De Jong, Y. (2008). "Cercocebus galeritus". IUCN Red List of Threatened Species 2008: e.T4200A10615270. doi:10.2305/IUCN.UK.2008.RLTS.T4200A10615270.en. https://www.iucnredlist.org/species/4200/10615270.
↑ ^54.0 ^54.1 ^54.2 Ehardt, C.; Butynski, T.M.; Struhsaker, T. (2008). "Cercocebus sanjei". IUCN Red List of Threatened Species 2008: e.T4203A10632228. doi:10.2305/IUCN.UK.2008.RLTS.T4203A10632228.en. https://www.iucnredlist.org/species/4203/10632228.
↑ ^55.0 ^55.1 Oates, J.F.; Gippoliti, S.; Groves, C.P. (2016). "Cercocebus lunulatus". IUCN Red List of Threatened Species 2016: e.T4206A92247225. doi:10.2305/IUCN.UK.2016-1.RLTS.T4206A92247225.en. https://www.iucnredlist.org/species/4206/92247225.
↑ ^56.0 ^56.1 Oates, J.F.; Struhsaker, T.; McGraw, S. (2016). "Piliocolobus waldronae". IUCN Red List of Threatened Species 2016: e.T18248A92649220. doi:10.2305/IUCN.UK.2016-1.RLTS.T18248A92649220.en. https://www.iucnredlist.org/species/18248/92649220.
↑ ^57.0 ^57.1 Robbins, M.; Gray, M.; Kümpel, N.; Lanjouw, A.; Maisels, F.; Mugisha, A.; Spelman, L.; Williamson, L. (2008). "Gorilla beringei ssp. beringei". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/39999/0. Retrieved 4 January 2009. old-form url
↑ Oates, J.F.; Struhsaker, T. (2016). "Piliocolobus epieni". IUCN Red List of Threatened Species 2016: e.T41024A92655748. doi:10.2305/IUCN.UK.2016-1.RLTS.T41024A92655748.en. https://www.iucnredlist.org/species/41024/92655748.
↑ Davenport, T.R.B.; Jones, T. (2008). "Rungwecebus kipunji". IUCN Red List of Threatened Species 2008: e.T136791A4340286. doi:10.2305/IUCN.UK.2008.RLTS.T136791A4340286.en. https://www.iucnredlist.org/species/136791/4340286.
↑ Oates, J.F.; Bergl, R.A.; Sunderland-Groves, J.; Dunn, A. (2008). "Gorilla gorilla ssp. diehli". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/39998/0. Retrieved 4 January 2009. old-form url
↑ ^61.0 ^61.1 Nekaris, A. (2008). "Loris tardigradus ssp. nycticeboides". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/39756/0. Retrieved 10 August 2010. old-form url
↑ ^62.0 ^62.1 ^62.2 Nijman, V.; Lammertink, M. (2008). "Presbytis natunae". IUCN Red List of Threatened Species 2008: e.T136500A4301419. doi:10.2305/IUCN.UK.2008.RLTS.T136500A4301419.en. https://www.iucnredlist.org/species/136500/4301419.
↑ ^63.0 ^63.1 Bleisch, B.; Xuan Canh, L.; Covert, B.; Yongcheng, L. (2008). "Trachypithecus poliocephalus ssp. leucocephalus". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/39872/0. Retrieved 10 August 2010. old-form url
↑ ^64.0 ^64.1 Nijman, V.; Meijaard, E.; Hon, J. (2008). "Presbytis hosei ssp. canicrus". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/39808/0. Retrieved 10 August 2010. old-form url
↑ ^65.0 ^65.1 ^65.2 Bleisch, W.; Richardson, M. (2008). "Rhinopithecus bieti". IUCN Red List of Threatened Species 2008: e.T19597A8986243. doi:10.2305/IUCN.UK.2008.RLTS.T19597A8986243.en. https://www.iucnredlist.org/species/19597/8986243.
↑ ^66.0 ^66.1 ^66.2 Bleisch, W.; Yongcheng, L.; Richardson, M. (2008). "Rhinopithecus brelichi". IUCN Red List of Threatened Species 2008: e.T19595A8985249. doi:10.2305/IUCN.UK.2008.RLTS.T19595A8985249.en. https://www.iucnredlist.org/species/19595/8985249.
↑ ^67.0 ^67.1 ^67.2 Andayani, N.; Brockelman, W.; Geissmann, T.; Nijman, V.; Supriatna, J. (2008). "Hylobates moloch". IUCN Red List of Threatened Species 2008: e.T10550A3199941. doi:10.2305/IUCN.UK.2008.RLTS.T10550A3199941.en. https://www.iucnredlist.org/species/10550/3199941.
↑ ^68.0 ^68.1 ^68.2 Geissmann, T.; Bleisch, W. (2008). "Nomascus hainanus". IUCN Red List of Threatened Species 2008: e.T41643A10526461. doi:10.2305/IUCN.UK.2008.RLTS.T41643A10526461.en. https://www.iucnredlist.org/species/41643/10526461.
↑ Brockelman, W.; Molur, S.; Geissmann, T. (2008). "Hoolock hoolock". IUCN Red List of Threatened Species 2008: e.T39876A10278553. doi:10.2305/IUCN.UK.2008.RLTS.T39876A10278553.en. https://www.iucnredlist.org/species/39876/10278553.
↑ Singleton, I.; Wich, S. A.; Griffiths, M. (2008). "Pongo abelii". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/39780/0. Retrieved 4 January 2009. old-form url
↑ Ancrenaz, M.; Marshall, A.; Goossens, B.; van Schaik, C.; Sugardjito, J.; Gumal, M.; Wich, S. (2008). "Pongo pygmaeus ssp. pygmaeus". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/39781/0. Retrieved 21 March 2013. old-form url
↑ Kumar, A.; Singh, M.; Molur, S. (2008). "Macaca silenus". IUCN Red List of Threatened Species 2008: e.T12559A3358033. doi:10.2305/IUCN.UK.2008.RLTS.T12559A3358033.en. https://www.iucnredlist.org/species/12559/3358033.
↑ ^73.0 ^73.1 ^73.2 Kierulff, M.C.M.; Rylands, A.B.; de Oliveira, M.M. (2008). "Leontopithecus rosalia". IUCN Red List of Threatened Species 2008: e.T11506A3287321. doi:10.2305/IUCN.UK.2008.RLTS.T11506A3287321.en. https://www.iucnredlist.org/species/11506/3287321.
↑ ^74.0 ^74.1 ^74.2 Kierulff, M.C.M.; Rylands, A.B.; Mendes, S.L.; de Oliveira, M.M. (2008). "Leontopithecus chrysopygus". IUCN Red List of Threatened Species 2008: e.T11505A3290864. doi:10.2305/IUCN.UK.2008.RLTS.T11505A3290864.en. https://www.iucnredlist.org/species/11505/3290864.
↑ ^75.0 ^75.1 ^75.2 Kierulff, M.C.M.; Rylands, A.B.; Mendes, S.L.; de Oliveira, M.M. (2008). "Leontopithecus caissara". IUCN Red List of Threatened Species 2008: e.T11503A3289886. doi:10.2305/IUCN.UK.2008.RLTS.T11503A3289886.en. https://www.iucnredlist.org/species/11503/3289886.
↑ ^76.0 ^76.1 Kierulff, M.C.M.; Mendes, S.L.; Rylands, A.B. (2015). "Sapajus xanthosternos". IUCN Red List of Threatened Species 2015: e.T4074A70615251. doi:10.2305/IUCN.UK.2015-1.RLTS.T4074A70615251.en. https://www.iucnredlist.org/species/4074/70615251.
↑ ^77.0 ^77.1 ^77.2 Mendes, S.L.; de Oliveira, M.M.; Mittermeier, R.A.; Rylands, A.B. (2008). "Brachyteles hypoxanthus". IUCN Red List of Threatened Species 2008: e.T2994A9529636. doi:10.2305/IUCN.UK.2008.RLTS.T2994A9529636.en. https://www.iucnredlist.org/species/2994/9529636.
↑ Cornejo, F.; Rylands, A.B.; Mittermeier, R.A.; Heymann, E. (2008). "Oreonax flavicauda". IUCN Red List of Threatened Species 2008: e.T39924A10287914. doi:10.2305/IUCN.UK.2008.RLTS.T39924A10287914.en. https://www.iucnredlist.org/species/39924/10287914.
↑ Savage, A.; Causado, J. (2014). "Saguinus oedipus". IUCN Red List of Threatened Species 2014: e.T19823A17930260. doi:10.2305/IUCN.UK.2014-3.RLTS.T19823A17930260.en. https://www.iucnredlist.org/species/19823/17930260.
↑ de Oliveira, M.M.; Boubli, J.-P.; Kierulff, M.C.M. (2015). "Sapajus flavius". IUCN Red List of Threatened Species 2015: e.T136253A70612549. doi:10.2305/IUCN.UK.2015.RLTS.T136253A70612549.en. https://www.iucnredlist.org/species/136253/70612549.
↑ ^81.0 ^81.1 ^81.2 ^81.3 ^81.4 ^81.5 ^81.6 Mittermeier, R.A.; Konstant, W.R.; Rylands, A.B. (2000). "The World's Top 25 Most Endangered Primates". Neotropical Primates 8 (1): 49. http://www.primate-sg.org/storage/pdf/Report%2025%20Most%20Endangered%20Primates%202000-2002.pdf.
↑ ^82.0 ^82.1 ^82.2 ^82.3 ^82.4 ^82.5 Konstant, W.R.; Mittermeier, R.A.; Rylands, A.B.; Butynski, T.M.; Eudey, A.A.; Ganzhorn, J.; Kormos, R. (2002). "The World's Top 25 Most Endangered Primates – 2002". Neotropical Primates 10 (3): 128–131. http://www.primate-sg.org/storage/pdf/Report%2025%20Most%20Endangered%20Primates%202002-2004.pdf.
↑ Groves, C.P. (2007). "The taxonomic diversity of the Colobinae of Africa". Journal of Anthropological Sciences 85: 7–34.

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[Ateles_hybridus-30] 1.0 ^1.1 ^1.2 ^1.3 ^1.4 ^1.5 The subspecies Ateles hybridus brunneus was listed in the 2004–2006 report, but the listing was expanded to cover both subspecies of Ateles hybridus starting with the 2006–2008 report.^[4]^[3]^[6]

[Propithecus_candidus-84] In the 2000–2002 report, this lemur was listed as Propithecus diadema candidus, but it has since been reclassified as a separate species, Propithecus candidus.^[4]^[81]^[82]

[Propithecus_perrieri-85] In the 2000–2002 report, this lemur was listed as Propithecus diadema perrieri, but it has since been reclassified as a separate species, Propithecus perrieri.^[4]^[81]^[82]

[Hapalemur_alaotrensis-86] In the 2000–2002 report, this lemur was listed as Hapalemur griseus alaotrensis, but it has since been reclassified as a separate species, Hapalemur alaotrensis.^[4]^[81]

[Gorilla_b._beringei-87] 5.0 ^5.1 In the 2000–2002 and 2004–2006 reports, this gorilla was listed as Gorilla beringei, but other reports instead used Gorilla b. beringei.^[4]^[3]^[81]^[82]

[Cercocebus_sanjei-88] In the 2000–2002 and 2002–2004 reports, the mangabey was listed as Cercocebus galeritus sanjei, but it has since been classified as a separate species, Cercocebus sanjei.^[4]

[Procolobus_badius_waldronae-90] 7.0 ^7.1 ^7.2 In the 2000–2002, 2002–2004, and 2006–2008 reports, this colobus monkey was listed as Procolobus badius waldroni, but the spelling of the name has since been corrected to waldronae.^[81]^[82]^[83]

[Trachypithecus_p._poliocephalus-91] 8.0 ^8.1 In the 2000–2002 and 2002–2004 reports, this monkey was listed as Trachypithecus poliocephalus, but with other subspecies now recognized by the IUCN, it is now known as Trachypithecus p. poliocephalus.^[4]^[3]^[81]^[82]

[Pygathrix_cinerea-92] 9.0 ^9.1 In the 2000–2002 and 2002–2004 reports, this douc was listed as Pygathrix nemaeus cinerea, but has since been recognized as a separate species, Pygathrix cinerea.^[4]^[3]

[Nomascus_hainanus-93] 10.0 ^10.1 In the 2000–2002 and 2004–2006 reports, this gibbon was listed as Hylobates concolor hainanus, but it has since been recognized as a separate species and placed in the genus Nomascus, so that it is known as Nomascus hainanus.^[4]^[81]

[Oreonax_flavicauda-94] In the 2000–2002 report, this species was listed as Lagothrix flavicauda, but it has since been renamed to Oreonax flavicauda.^[4]

[95] In the 2002–2004 report, this monkey was listed as Trachypithecus leucocephalus, but it is now considered only a subspecies, Trachypithecus poliocephalus leucocephalus.^[4]^[82]

[Eulemur_cinereiceps-96] 13.0 ^13.1 In the 2004–2006 and 2006–2008 reports, this species was listed as Eulemur albocollaris, but it has since been renamed to Eulemur cinereiceps.^[4]

[97] In the 2006–2008 report, this tarsier was listed as "Tarsius sp.", but it has since been formally named as Tarsius tumpara.^[4]^[6]

[Ateles_fusciceps-98] The species Ateles fusciceps was listed in the 2006–2008 report, but the common name and description match the later identified subspecies, Ateles fusciceps fusciceps.^[6]

[2018-2020Top25-1] 1.0 ^1.1 ^1.2 ^1.3 ^1.4 ^1.5 Schwitzer, C.; Mittermeier, R.A.; Rylands, A.B. et al., eds (2019). Primates in Peril: The World's 25 Most Endangered Primates 2018–2020. Illustrated by S.D. Nash. Washington, DC: IUCN/SSC Primate Specialist Group (PSG), International Primatological Society (IPS), Global Wildlife Conservation (GWC), and Bristol Zoological Society (BZS). pp. 1–130. http://static1.1.sqspcdn.com/static/f/1200343/28239089/1578298071023/Primates_in_Peril_2018-2020.pdf.

[2012-2014Top25-2] 2.0 ^2.1 ^2.2 ^2.3 ^2.4 ^2.5 ^2.6 ^2.7 Schwitzer, C.; Mittermeier, R.A.; Rylands, A.B. et al., eds (2014). Primates in Peril: The World's 25 Most Endangered Primates 2012–2014. Illustrated by S.D. Nash. Arlington, VA: IUCN/SSC Primate Specialist Group (PSG), International Primatological Society (IPS), Conservation International (CI), and Bristol Zoological Society (BZS). pp. 1–91. http://static1.1.sqspcdn.com/static/f/1200343/25117808/1403888374823/Primates_in_Peril_2012-2014_Full_Report.pdf.

[2004-2006Top25-3] 3.0 ^3.1 ^3.2 ^3.3 ^3.4 ^3.5 ^3.6 Mittermeier, R.A.; Valladares-Pádua, C.; Rylands, A.B. et al., eds (2006). Illustrated by S.D. Nash. "Primates in Peril: The World's 25 Most Endangered Primates 2004–2006". Primate Conservation 2006 (20): 1–28. doi:10.1896/0898-6207.20.1.1.

[2008-2010Top25-4] 4.00 ^4.01 ^4.02 ^4.03 ^4.04 ^4.05 ^4.06 ^4.07 ^4.08 ^4.09 ^4.10 ^4.11 ^4.12 ^4.13 ^4.14 ^4.15 ^4.16 ^4.17 ^4.18 ^4.19 ^4.20 ^4.21 ^4.22 ^4.23 ^4.24 ^4.25 Mittermeier, R.A.; Wallis, J.; Rylands, A.B. et al., eds (2009). Primates in Peril: The World's 25 Most Endangered Primates 2008–2010. 24. Illustrated by S.D. Nash. IUCN/SSC Primate Specialist Group (PSG), International Primatological Society (IPS), and Conservation International (CI). 1–92. doi:10.1896/052.024.0101. ISBN 978-1-934151-34-1. http://www.primate-sg.org/storage/PDF/Primates.in.Peril.2008-2010.pdf.

[TheTimes_26Oct07-5] L., Smith (26 October 2007). "Primates in peril: 25 species facing threat of extinction". The Times. http://www.timesonline.co.uk/tol/news/science/article2741670.ece.

[2006-2008Top25-6] 6.0 ^6.1 ^6.2 ^6.3 Mittermeier, R.A.; Ratsimbazafy, J.; Rylands, A.B. et al., eds (2007). Illustrated by S.D. Nash. "Primates in Peril: The World's 25 Most Endangered Primates 2006–2008". Primate Conservation 22: 1–40. doi:10.1896/052.022.0101.

[2010-2012Top25-7] 7.0 ^7.1 Mittermeier, R.A.; Schwitzer, C.; Rylands, A.B.; Schwitzer, C.; Taylor, L.A.; Chiozza, F.; Williamson, E.A. (2012). Primates in Peril: The World's 25 Most Endangered Primates 2010–2012. IUCN/SSC Primate Specialist Group (PSG), International Primatological Society (IPS), and Conservation International (CI). pp. 1–40. http://www.primate-sg.org/storage/pdf/Primates_in_Peril_2010-2012.pdf.

[2014-2016Top25-8] 8.0 ^8.1 Schwitzer, C.; Mittermeier, R.A.; Rylands, A.B. et al., eds (2015). Primates in Peril: The World's 25 Most Endangered Primates 2014–2016. Illustrated by S.D. Nash. Arlington, VA: IUCN/SSC Primate Specialist Group (PSG), International Primatological Society (IPS), Conservation International (CI), and Bristol Zoological Society (BZS). pp. 1–93. http://static1.1.sqspcdn.com/static/f/1200343/26892107/1456949943947/PrimatesInPeril2014-2016.pdf.

[2016-2018Top25-9] 9.0 ^9.1 Schwitzer, C.; Mittermeier, R.A.; Rylands, A.B. et al., eds (2017). Primates in Peril: The World's 25 Most Endangered Primates 2016–2018. Illustrated by S.D. Nash. Arlington, VA: IUCN/SSC Primate Specialist Group (PSG), International Primatological Society (IPS), Conservation International (CI), and Bristol Zoological Society (BZS). pp. 1–107. http://static1.1.sqspcdn.com/static/f/1200343/27784415/1513890513360/Primates_in_Peril_2016-2018.pdf.

[IUCNNews_18Feb10-10] 10.0 ^10.1 "World's most endangered primates revealed". IUCN News. 18 February 2010. http://www.iucn.org/?4753/Worlds-most-endangered-primates-revealed.

[IUCN_Microcebus_manitatra-11] Blanco, M.; Dolch, R.; Donati, G.; Ganzhorn, J.; Greene, L.K.; Le Pors, B.; Lewis, R.; Rafalinirina, H.A. et al. (2020). "Microcebus manitatra". IUCN Red List of Threatened Species 2020: e.T163313848A163313878. https://www.iucnredlist.org/species/163313848/163313878. Retrieved 12 July 2020.

[IUCN_Hapalemur_alaotrensis-12] Andrainarivo, C. et al. (2008). "Hapalemur alaotrensis". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/9676/0. Retrieved 1 January 2009. old-form url

[IUCN_Lepilemur_jamesorum-13] Andriamisedra, T.R.; Ranaivoarisoa, F.N.; Ratsimbazafy, J.; Louis, E.E. (2020). "Lepilemur jamesorum". IUCN Red List of Threatened Species 2020: e.T136491A115583306. doi:10.2305/IUCN.UK.2020-2.RLTS.T136491A115583306.en. https://www.iucnredlist.org/species/136491/115583306. Retrieved 28 August 2021.

[IUCN_Indri_indri-14] Andrainarivo, C.Expression error: Unrecognized word "etal". (2008). "Indri indri". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/10826/0. Retrieved 21 March 2013. old-form url

[IUCN_Daubentonia_madagascariensis-15] Louis, E.E.; Sefczek, T.M.; Randimbiharinirina, D.R.; Raharivololona, B.; Rakotondrazandry, J.N.; Manjary, D.; Aylward, M.; Ravelomandrato, F. (2020). "Daubentonia madagascariensis". IUCN Red List of Threatened Species 2020: e.T6302A115560793. doi:10.2305/IUCN.UK.2020-2.RLTS.T6302A115560793.en. https://www.iucnredlist.org/species/6302/115560793. Retrieved 28 August 2021.

[IUCN_Galagoides_rondoensis-16] Perkin, A.; Bearder, S.; Honess, P.; Butynski, T.M. (2008). "Galagoides rondoensis". IUCN Red List of Threatened Species 2008: e.T40652A10350268. doi:10.2305/IUCN.UK.2008.RLTS.T40652A10350268.en. https://www.iucnredlist.org/species/40652/10350268.

[IUCN_Cercopithecus_diana_roloway-17] Oates, J.F.; Gippoliti, S.; Groves, C.P. (2016). "Cercopithecus roloway". IUCN Red List of Threatened Species 2016: e.T4232A92375108. doi:10.2305/IUCN.UK.2016-1.RLTS.T4232A92375108.en. https://www.iucnredlist.org/species/4232/92375108.

[IUCN_Procolobus_rufomitratus_rufomitratus-18] Butynski, T.M.; Struhsaker, T.; De Jong, Y. (2016). "Piliocolobus rufomitratus". IUCN Red List of Threatened Species 2016: e.T136939A92658041. doi:10.2305/IUCN.UK.2016-1.RLTS.T136939A92658041.en. https://www.iucnredlist.org/species/136939/92658041.

[IUCN_Procolobus_pennantii_pennantii-19] Oates, J.F.; Struhsaker, T. (2008). "Piliocolobus pennantii". IUCN Red List of Threatened Species 2008: e.T41025A92653137. doi:10.2305/IUCN.UK.2008.RLTS.T41025A92653137.en. https://www.iucnredlist.org/species/41025/92653137.

[IUCN_Gorilla_beringei_graueri-20] Robbins, M.; Hart, J.; Maisels, F.; Mehlman, P.; Nixon, S.; Williamson, L. (2008). "Gorilla beringei ssp. graueri". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/39995/0. Retrieved 21 March 2013. old-form url

[IUCN_Nycticebus_javanicus-21] Nekaris, A.; Shekelle, M. (2008). "Nycticebus javanicus". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/39761/0. Retrieved 10 August 2010. old-form url

[IUCN_Simias_concolor-22] Whittaker, D.; Mittermeier, R.A. (2008). "Simias concolor". IUCN Red List of Threatened Species 2008: e.T20229A9181121. doi:10.2305/IUCN.UK.2008.RLTS.T20229A9181121.en. https://www.iucnredlist.org/species/20229/9181121.

[IUCN_Trachypithecus_delacouri-23] Nadler, T.; Xuan Canh, L.; Ngoc Thanh, V.; Khac Quyet, L. (2008). "Trachypithecus delacouri". IUCN Red List of Threatened Species 2008: e.T22043A9350654. doi:10.2305/IUCN.UK.2008.RLTS.T22043A9350654.en. https://www.iucnredlist.org/species/22043/9350654.

[IUCN_Trachypithecus_poliocephalus-24] Bleisch, B.; Xuan Canh, L.; Covert, B.; Yongcheng, L. (2008). "Trachypithecus poliocephalus ssp. poliocephalus". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/39871/0. Retrieved 10 August 2010. old-form url

[IUCN_Semnopithecus_vetulus_nestor-25] Dittus, W.; Molur, S.; Nekaris, A. (2008). "Trachypithecus vetulus ssp. nestor". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/39844/0. Retrieved 5 August 2010. old-form url

[IUCN_Pygathrix_cinerea-26] Ngoc Thanh, V.; Lippold, L.; Nadler, T.; Timmons, R. J. (2008). "Pygathrix cinerea". IUCN Red List of Threatened Species 2008: e.T39827A10273229. doi:10.2305/IUCN.UK.2008.RLTS.T39827A10273229.en. https://www.iucnredlist.org/species/39827/10273229.

[IUCN_Rhinopithecus_avunculus-27] Xuan Canh, L.; Khac Quyet, L.; Thanh Hai, D.; Boonratana, R. (2008). "Rhinopithecus avunculus". IUCN Red List of Threatened Species 2008: e.T19594A8984679. doi:10.2305/IUCN.UK.2008.RLTS.T19594A8984679.en. https://www.iucnredlist.org/species/19594/8984679.

[IUCN_Nomascus_nasutus-28] Bleisch, B.; Geissmann, T. (2008). "Nomascus nasutus". IUCN Red List of Threatened Species 2008: e.T41642A10526189. doi:10.2305/IUCN.UK.2008.RLTS.T41642A10526189.en. https://www.iucnredlist.org/species/41642/10526189.

[IUCN_Tarsius_pumilus-29] Shekelle, M.; Salim, A. (2008). "Tarsius pumilus". IUCN Red List of Threatened Species 2008: e.T21490A9288636. doi:10.2305/IUCN.UK.2008.RLTS.T21490A9288636.en. https://www.iucnredlist.org/species/21490/9288636.

[IUCN_Ateles_hybridus-31] Urbani, B.; Morales, A.L.; Link, A.; Stevenson, P. (2008). "Ateles hybridus". IUCN Red List of Threatened Species 2008: e.T39961A10280054. doi:10.2305/IUCN.UK.2008.RLTS.T39961A10280054.en. https://www.iucnredlist.org/species/39961/10280054.

[IUCN_Ateles_fusciceps_fusciceps-32] Cuarón, A.D.; Morales, A.; Shedden, A.; Rodríguez-Luna, E.; de Grammont, P.C. (2008). "Ateles fusciceps ssp. fusciceps". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/39922/0. Retrieved 8 September 2010. old-form url

[IUCN_Cebus_kaapori-33] Kierulff, M.C.M.; de Oliveira, M.M. (2008). "Cebus kaapori". IUCN Red List of Threatened Species 2008: e.T40019A10303725. doi:10.2305/IUCN.UK.2008.RLTS.T40019A10303725.en. https://www.iucnredlist.org/species/40019/10303725.

[IUCN_Callicebus_oenanthe-34] Veiga, L.; Bóveda-Penalba, A.; Vermeer, J.; Tello-Alvarado, J.C.; Cornejo, F. (2008). "Callicebus oenanthe". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/3553/0. Retrieved 21 March 2013. old-form url

[IUCN_Alouatta_guariba_guariba-35] Mendes, S.L.; Rylands. A.B.; Kierulff; M.C.M.; de Oliveira, M.M. (2008). "Alouatta guariba ssp. guariba". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/39917/0. Retrieved 21 March 2013. old-form url

[NationalGeographicNews_26Oct07-36] 35.0 ^35.1 M., Casey (26 October 2007). "Primates in Trouble, Says Report on 25 Rarest". National Geographic News. http://news.nationalgeographic.com/news/2007/10/071026-endangered-primates.html.

[IUCN_Prolemur_simus-37] Andrainarivo, C. et al. (2008). "Prolemur simus". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/9674/0. Retrieved 1 January 2009. old-form url

[IUCN_Varecia_variegata-38] Andrainarivo, C.Expression error: Unrecognized word "etal". (2008). "Varecia variegata". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/22918/0. Retrieved 21 March 2013. old-form url

[IUCN_Eulemur_cinereiceps-39] Andrainarivo, C.Expression error: Unrecognized word "etal". (2008). "Eulemur cinereiceps". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/8205/0. Retrieved 6 October 2008. old-form url

[IUCN_Propithecus_tattersalli-40] 39.0 ^39.1 ^39.2 Andrainarivo, C.Expression error: Unrecognized word "etal". (2008). "Propithecus tattersalli". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/18352/0. Retrieved 1 January 2009. old-form url

[IUCN_Hapalemur_aureus-41] 40.0 ^40.1 ^40.2 Andrainarivo, C. et al. (2008). "Hapalemur aureus". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/9672/0. Retrieved 1 January 2009. old-form url

[IUCN_Lepilemur_sahamalazensis-42] 41.0 ^41.1 Olivieri, G.; Schwitzer, C.; Schwitzer, N.; Craul, M. (2008). "Lepilemur sahamalazensis". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/136645/0. Retrieved 1 January 2009. old-form url

[IUCN_Propithecus_perrieri-43] 42.0 ^42.1 ^42.2 Andrainarivo, C. et al. (2008). "Propithecus perrieri". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/18361/0. Retrieved 1 January 2009. old-form url

[IUCN_Eulemur_flavifrons-44] Andriaholinirina, N.Expression error: Unrecognized word "etal". (2014). "Eulemur flavifrons". IUCN Red List of Threatened Species 2014: e.T8211A16117351. doi:10.2305/IUCN.UK.2014-1.RLTS.T8211A16117351.en. https://www.iucnredlist.org/species/8211/16117351.

[IUCN_Lepilemur_septentrionalis-45] Andrainarivo, C. et al. (2008). "Lepilemur septentrionalis". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/11622/0. Retrieved 1 January 2009. old-form url

[IUCN_Propithecus_candidus-46] Andrainarivo, C.Expression error: Unrecognized word "etal". (2008). "Propithecus candidus". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/18360/0. Retrieved 1 January 2009. old-form url

[IUCN_Microcebus_berthae-47] Andrainarivo, C.Expression error: Unrecognized word "etal". (2008). "Microcebus berthae". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/41573/0. Retrieved 21 March 2013. old-form url

[IUCN_Varecia_rubra-48] Andrainarivo, C.Expression error: Unrecognized word "etal". (2008). "Varecia rubra". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/22920/0. Retrieved 21 March 2013. old-form url

[IUCN_Cheirogaleus_lavasoensis-49] 48.0 ^48.1 Blanco, M.; Dolch, R.; Donati, G.; Ganzhorn, J.; Greene, L.K.; Le Pors, B.; Lewis, R.; Louis, E.E. et al. (2020). "Cheirogaleus lavasoensis". IUCN Red List of Threatened Species 2020: e.T163022131A163022293. doi:10.2305/IUCN.UK.2020-2.RLTS.T163022131A163022293.en. https://www.iucnredlist.org/species/163022131/163022293. Retrieved 28 August 2021.

[IUCN_Microcebus_gerpi-50] 49.0 ^49.1 Andriaholinirina, N.; Baden, A.; Blanco, M.; Chikhi, L.; Cooke, A.; Davies, N.; Dolch, R.; Donati, G. et al. (2014). "Microcebus gerpi". IUCN Red List of Threatened Species 2014: e.T16971461A16971464. doi:10.2305/IUCN.UK.2014-1.RLTS.T16971461A16971464.en. https://www.iucnredlist.org/species/16971461/16971464. Retrieved 28 August 2021.

[IUCN_Lemur_catta-51] 50.0 ^50.1 LaFleur, M.; Gould, L. (2020). "Lemur catta". IUCN Red List of Threatened Species 2020: e.T11496A115565760. doi:10.2305/IUCN.UK.2020-2.RLTS.T11496A115565760.en. https://www.iucnredlist.org/species/11496/115565760. Retrieved 28 August 2021.

[IUCN_Cercopithecus_sclateri-52] 51.0 ^51.1 Oates, J.F.; Baker, L.R.; Tooze, Z.J. (2008). "Cercopithecus sclateri". IUCN Red List of Threatened Species 2008: e.T4229A10678392. doi:10.2305/IUCN.UK.2008.RLTS.T4229A10678392.en. https://www.iucnredlist.org/species/4229/10678392.

[IUCN_Mandrillus_leucophaeus-53] 52.0 ^52.1 Oates, J.F.; Butynski, T.M. (2008). "Mandrillus leucophaeus". IUCN Red List of Threatened Species 2008: e.T12753A3377185. doi:10.2305/IUCN.UK.2008.RLTS.T12753A3377185.en. https://www.iucnredlist.org/species/12753/3377185.

[IUCN_Cercocebus_galeritus-54] 53.0 ^53.1 ^53.2 Butynski, T.M.; Struhsaker, T.; Kingdon, J.; De Jong, Y. (2008). "Cercocebus galeritus". IUCN Red List of Threatened Species 2008: e.T4200A10615270. doi:10.2305/IUCN.UK.2008.RLTS.T4200A10615270.en. https://www.iucnredlist.org/species/4200/10615270.

[IUCN_Cercocebus_sanjei-55] 54.0 ^54.1 ^54.2 Ehardt, C.; Butynski, T.M.; Struhsaker, T. (2008). "Cercocebus sanjei". IUCN Red List of Threatened Species 2008: e.T4203A10632228. doi:10.2305/IUCN.UK.2008.RLTS.T4203A10632228.en. https://www.iucnredlist.org/species/4203/10632228.

[IUCN_Cercocebus_atys_lunulatus-56] 55.0 ^55.1 Oates, J.F.; Gippoliti, S.; Groves, C.P. (2016). "Cercocebus lunulatus". IUCN Red List of Threatened Species 2016: e.T4206A92247225. doi:10.2305/IUCN.UK.2016-1.RLTS.T4206A92247225.en. https://www.iucnredlist.org/species/4206/92247225.

[IUCN_Procolobus_badius_waldroni-57] 56.0 ^56.1 Oates, J.F.; Struhsaker, T.; McGraw, S. (2016). "Piliocolobus waldronae". IUCN Red List of Threatened Species 2016: e.T18248A92649220. doi:10.2305/IUCN.UK.2016-1.RLTS.T18248A92649220.en. https://www.iucnredlist.org/species/18248/92649220.

[IUCN_Gorilla_beringei_beringei-58] 57.0 ^57.1 Robbins, M.; Gray, M.; Kümpel, N.; Lanjouw, A.; Maisels, F.; Mugisha, A.; Spelman, L.; Williamson, L. (2008). "Gorilla beringei ssp. beringei". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/39999/0. Retrieved 4 January 2009. old-form url

[IUCN_Procolobus_epieni-59] Oates, J.F.; Struhsaker, T. (2016). "Piliocolobus epieni". IUCN Red List of Threatened Species 2016: e.T41024A92655748. doi:10.2305/IUCN.UK.2016-1.RLTS.T41024A92655748.en. https://www.iucnredlist.org/species/41024/92655748.

[IUCN_Rungwecebus_kipunji-60] Davenport, T.R.B.; Jones, T. (2008). "Rungwecebus kipunji". IUCN Red List of Threatened Species 2008: e.T136791A4340286. doi:10.2305/IUCN.UK.2008.RLTS.T136791A4340286.en. https://www.iucnredlist.org/species/136791/4340286.

[IUCN_Gorilla_gorilla_diehli-61] Oates, J.F.; Bergl, R.A.; Sunderland-Groves, J.; Dunn, A. (2008). "Gorilla gorilla ssp. diehli". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/39998/0. Retrieved 4 January 2009. old-form url

[IUCN_Loris_tardigradus_nycticeboides-62] 61.0 ^61.1 Nekaris, A. (2008). "Loris tardigradus ssp. nycticeboides". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/39756/0. Retrieved 10 August 2010. old-form url

[IUCN_Presbytis_natunae-63] 62.0 ^62.1 ^62.2 Nijman, V.; Lammertink, M. (2008). "Presbytis natunae". IUCN Red List of Threatened Species 2008: e.T136500A4301419. doi:10.2305/IUCN.UK.2008.RLTS.T136500A4301419.en. https://www.iucnredlist.org/species/136500/4301419.

[IUCN_Trachypithecus_poliocephalus_leucocephalus-64] 63.0 ^63.1 Bleisch, B.; Xuan Canh, L.; Covert, B.; Yongcheng, L. (2008). "Trachypithecus poliocephalus ssp. leucocephalus". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/39872/0. Retrieved 10 August 2010. old-form url

[IUCN_Presbytis_hosei_canicrus-65] 64.0 ^64.1 Nijman, V.; Meijaard, E.; Hon, J. (2008). "Presbytis hosei ssp. canicrus". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/39808/0. Retrieved 10 August 2010. old-form url

[IUCN_Rhinopithecus_bieti-66] 65.0 ^65.1 ^65.2 Bleisch, W.; Richardson, M. (2008). "Rhinopithecus bieti". IUCN Red List of Threatened Species 2008: e.T19597A8986243. doi:10.2305/IUCN.UK.2008.RLTS.T19597A8986243.en. https://www.iucnredlist.org/species/19597/8986243.

[IUCN_Rhinopithecus_brelichi-67] 66.0 ^66.1 ^66.2 Bleisch, W.; Yongcheng, L.; Richardson, M. (2008). "Rhinopithecus brelichi". IUCN Red List of Threatened Species 2008: e.T19595A8985249. doi:10.2305/IUCN.UK.2008.RLTS.T19595A8985249.en. https://www.iucnredlist.org/species/19595/8985249.

[IUCN_Hylobates_moloch-68] 67.0 ^67.1 ^67.2 Andayani, N.; Brockelman, W.; Geissmann, T.; Nijman, V.; Supriatna, J. (2008). "Hylobates moloch". IUCN Red List of Threatened Species 2008: e.T10550A3199941. doi:10.2305/IUCN.UK.2008.RLTS.T10550A3199941.en. https://www.iucnredlist.org/species/10550/3199941.

[IUCN_Nomascus_hainanus-69] 68.0 ^68.1 ^68.2 Geissmann, T.; Bleisch, W. (2008). "Nomascus hainanus". IUCN Red List of Threatened Species 2008: e.T41643A10526461. doi:10.2305/IUCN.UK.2008.RLTS.T41643A10526461.en. https://www.iucnredlist.org/species/41643/10526461.

[IUCN_Hoolock_hoolock-70] Brockelman, W.; Molur, S.; Geissmann, T. (2008). "Hoolock hoolock". IUCN Red List of Threatened Species 2008: e.T39876A10278553. doi:10.2305/IUCN.UK.2008.RLTS.T39876A10278553.en. https://www.iucnredlist.org/species/39876/10278553.

[IUCN_Pongo_abelii-71] Singleton, I.; Wich, S. A.; Griffiths, M. (2008). "Pongo abelii". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/39780/0. Retrieved 4 January 2009. old-form url

[IUCN_Pongo_pygmaeus_pygmaeus-72] Ancrenaz, M.; Marshall, A.; Goossens, B.; van Schaik, C.; Sugardjito, J.; Gumal, M.; Wich, S. (2008). "Pongo pygmaeus ssp. pygmaeus". IUCN Red List of Threatened Species 2008. https://www.iucnredlist.org/details/39781/0. Retrieved 21 March 2013. old-form url

[IUCN_Macaca_silenus-73] Kumar, A.; Singh, M.; Molur, S. (2008). "Macaca silenus". IUCN Red List of Threatened Species 2008: e.T12559A3358033. doi:10.2305/IUCN.UK.2008.RLTS.T12559A3358033.en. https://www.iucnredlist.org/species/12559/3358033.

[IUCN_Leontopithecus_rosalia-74] 73.0 ^73.1 ^73.2 Kierulff, M.C.M.; Rylands, A.B.; de Oliveira, M.M. (2008). "Leontopithecus rosalia". IUCN Red List of Threatened Species 2008: e.T11506A3287321. doi:10.2305/IUCN.UK.2008.RLTS.T11506A3287321.en. https://www.iucnredlist.org/species/11506/3287321.

[IUCN_Leontopithecus_chrysopygus-75] 74.0 ^74.1 ^74.2 Kierulff, M.C.M.; Rylands, A.B.; Mendes, S.L.; de Oliveira, M.M. (2008). "Leontopithecus chrysopygus". IUCN Red List of Threatened Species 2008: e.T11505A3290864. doi:10.2305/IUCN.UK.2008.RLTS.T11505A3290864.en. https://www.iucnredlist.org/species/11505/3290864.

[IUCN_Leontopithecus_caissara-76] 75.0 ^75.1 ^75.2 Kierulff, M.C.M.; Rylands, A.B.; Mendes, S.L.; de Oliveira, M.M. (2008). "Leontopithecus caissara". IUCN Red List of Threatened Species 2008: e.T11503A3289886. doi:10.2305/IUCN.UK.2008.RLTS.T11503A3289886.en. https://www.iucnredlist.org/species/11503/3289886.

[IUCN_Cebus_xanthosternos-77] 76.0 ^76.1 Kierulff, M.C.M.; Mendes, S.L.; Rylands, A.B. (2015). "Sapajus xanthosternos". IUCN Red List of Threatened Species 2015: e.T4074A70615251. doi:10.2305/IUCN.UK.2015-1.RLTS.T4074A70615251.en. https://www.iucnredlist.org/species/4074/70615251.

[IUCN_Brachyteles_hypoxanthus-78] 77.0 ^77.1 ^77.2 Mendes, S.L.; de Oliveira, M.M.; Mittermeier, R.A.; Rylands, A.B. (2008). "Brachyteles hypoxanthus". IUCN Red List of Threatened Species 2008: e.T2994A9529636. doi:10.2305/IUCN.UK.2008.RLTS.T2994A9529636.en. https://www.iucnredlist.org/species/2994/9529636.

[IUCN_Oreonax_flavicauda-79] Cornejo, F.; Rylands, A.B.; Mittermeier, R.A.; Heymann, E. (2008). "Oreonax flavicauda". IUCN Red List of Threatened Species 2008: e.T39924A10287914. doi:10.2305/IUCN.UK.2008.RLTS.T39924A10287914.en. https://www.iucnredlist.org/species/39924/10287914.

[IUCN_Saguinus_oedipus-80] Savage, A.; Causado, J. (2014). "Saguinus oedipus". IUCN Red List of Threatened Species 2014: e.T19823A17930260. doi:10.2305/IUCN.UK.2014-3.RLTS.T19823A17930260.en. https://www.iucnredlist.org/species/19823/17930260.

[IUCN_Cebus_flavius-81] Oliveira, M.M.; Boubli, J.-P.; Kierulff, M.C.M. (2015). "Sapajus flavius". IUCN Red List of Threatened Species 2015: e.T136253A70612549. doi:10.2305/IUCN.UK.2015.RLTS.T136253A70612549.en. https://www.iucnredlist.org/species/136253/70612549.

[2000-2002Top25-82] 81.0 ^81.1 ^81.2 ^81.3 ^81.4 ^81.5 ^81.6 Mittermeier, R.A.; Konstant, W.R.; Rylands, A.B. (2000). "The World's Top 25 Most Endangered Primates". Neotropical Primates 8 (1): 49. http://www.primate-sg.org/storage/pdf/Report%2025%20Most%20Endangered%20Primates%202000-2002.pdf.

[2002-2004Top25-83] 82.0 ^82.1 ^82.2 ^82.3 ^82.4 ^82.5 Konstant, W.R.; Mittermeier, R.A.; Rylands, A.B.; Butynski, T.M.; Eudey, A.A.; Ganzhorn, J.; Kormos, R. (2002). "The World's Top 25 Most Endangered Primates – 2002". Neotropical Primates 10 (3): 128–131. http://www.primate-sg.org/storage/pdf/Report%2025%20Most%20Endangered%20Primates%202002-2004.pdf.

[2007Groves-89] Groves, C.P. (2007). "The taxonomic diversity of the Colobinae of Africa". Journal of Anthropological Sciences 85: 7–34.

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Biology:The World's 25 Most Endangered Primates

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