List of critically endangered mammals



As of January 2020, the International Union for Conservation of Nature (IUCN) listed 203 critically endangered mammalian species, including 31 which are tagged as possibly extinct. Of all evaluated mammalian species, 3.5% are listed as critically endangered. The IUCN also lists 60 mammalian subspecies as critically endangered.

Of the subpopulations of mammals evaluated by the IUCN, 18 species subpopulations have been assessed as critically endangered.

Additionally 900 mammalian species (15% of those evaluated) are listed as data deficient, meaning there is insufficient information for a full assessment of conservation status. As these species typically have small distributions and/or populations, they are intrinsically likely to be threatened, according to the IUCN. While the category of data deficient indicates that no assessment of extinction risk has been made for the taxa, the IUCN notes that it may be appropriate to give them "the same degree of attention as threatened taxa, at least until their status can be assessed".

This is a complete list of critically endangered mammalian species and subspecies evaluated by the IUCN. Species considered possibly extinct by the IUCN are marked as such. Species and subspecies which have critically endangered subpopulations (or stocks) are indicated. Where possible common names for taxa are given while links point to the scientific name used by the IUCN.

Primates
There are 63 species and 36 subspecies of primates assessed as critically endangered.

Gibbons
Species • Black crested gibbon

• *Tonkin black crested gibbon

• *West Yunnan black crested gibbon

• *Central Yunnan black crested gibbon

• *Laotian black crested gibbon

• Hainan black crested gibbon

• Northern white-cheeked gibbon

• Eastern black crested gibbon

Great apes
Species • Eastern gorilla

• *Eastern lowland gorilla

• Western gorilla

• *Cross River gorilla

• *Western lowland gorilla

• Bornean orangutan

• Sumatran orangutan

• Tapanuli orangutan Subspecies • Western chimpanzee

Lemurs
Species • Sibree's dwarf lemur

• Gray-headed lemur

• Blue-eyed black lemur

• Mongoose lemur

• Lac Alaotra bamboo lemur

• Golden bamboo lemur

• Greater bamboo lemur

• Indri

• Manombo sportive lemur

• Sahamalaza sportive lemur

• Northern sportive lemur

• Hawks' sportive lemur

• Gerp's mouse lemur

• Marohita mouse lemur

• Silky sifaka

• Diademed sifaka

• Perrier's sifaka

• Golden-crowned sifaka

• Red ruffed lemur

• Black-and-white ruffed lemur Subspecies • Southern black-and-white ruffed lemur

• Northern black-and-white ruffed lemur

• Pied black-and-white ruffed lemur

Tarsiers
Species Subspecies
 * Siau Island tarsier
 * Natuna Islands tarsier

Old World monkeys
Species

• Celebes crested macaque

• Pagai Island macaque

• Niger Delta red colobus

• Preuss's red colobus

• Miss Waldron's red colobus

• Sarawak surili

• Red-shanked douc

• Gray-shanked douc

• Black-shanked douc

• Tonkin snub-nosed monkey

• Myanmar snub-nosed monkey

• Pig-tailed langur

• Delacour's langur

• Cat Ba langur

• White-headed langur

• Popa langur

Subspecies • Zammarano's monkey

• Presbytis chrysomelas chrysomelas

• Tricolored langur

• Golden-bellied Mentawai Island langur

• Western purple-faced langur

• Pagai Island pig-tailed snub-nosed monkey

• Siberut Island pig-tailed snub-nosed monkey

• Natuna Islands silvery lutung

New World monkeys
Species • Brown spider monkey

• Northern muriqui

• Blond titi monkey

• Caquetá titi

• Rio Mayo titi

• Ecuadorian white-fronted capuchin

• Kaapori capuchin

• Colombian woolly monkey

• Yellow-tailed woolly monkey

• Cotton-top tamarin

• Golden-bellied capuchin Subspecies • Northern brown howler

• Mexican howler

• Azuero howler

• Brown-headed spider monkey

• Colombian spider monkey

• Azuero spider monkey

• Nicaraguan spider monkey

• Mexican spider monkey

• Ateles hybridus brunneus

• Hybrid spider monkey

• Margarita Island capuchin

Lorisoidea

 * Javan slow loris

Odd-toed ungulates
Species • Sumatran rhinoceros

• Black rhinoceros

• *Eastern black rhinoceros

• *South-central black rhinoceros

• African wild donkey

• Javan rhinoceros Subspecies • Northern white rhinoceros (possibly extinct in the wild)

Cetartiodactyls
Cetartiodactyla includes dolphins, whales and even-toed ungulates. There are 15 species, nine subspecies, and nine subpopulations of cetartiodactyl assessed as critically endangered.

Non-cetacean even-toed ungulates
Species • Addax

• Bawean deer

• Hirola

• Kouprey (possibly extinct)

• Tamaraw

• Wild Bactrian camel

• Giant muntjac

• Dama gazelle

• Saola

• Visayan warty pig Subspecies • Tora hartebeest

• Giant sable antelope

• Upemba lechwe

• Russian saiga

• Western giant eland

• Mountain bongo

• Kordofan giraffe

• Nubian giraffe

Cetaceans
Species Subspecies • Popoto
 * Baiji (possibly extinct)
 * Vaquita
 * Rice's whale
 * North Atlantic right whale
 * Atlantic humpback dolphin

• Yangtze finless porpoise Subpopulations • Bowhead whale (1 subpopulation)

• Beluga whale (1 subpopulation)

• Gray whale (1 subpopulation)

• North Pacific right whale (1 subpopulation)

• Irrawaddy dolphin (5 subpopulations)

• Harbour porpoise (1 subpopulation)

• Indo-Pacific humpbacked dolphin (1 subpopulation)

• Common bottlenose dolphin (1 subpopulation)

Marsupials
• Talaud bear cuscus

• Woylie

• Mountain pygmy possum

• Wondiwoi tree-kangaroo

• Golden-mantled tree-kangaroo

• Tenkile

• Black dorcopsis

• Leadbeater's possum

• Northern hairy-nosed wombat

• Handley's slender opossum

• One-striped opossum (possibly extinct)

• Northern glider

• Telefomin cuscus (possibly extinct)

• Gilbert's potoroo

• Kangaroo Island dunnart

• Black-spotted cuscus

• Blue-eyed spotted cuscus

Carnivora
Species • Red wolf

• European mink

• Cozumel raccoon

• Malabar large-spotted civet Subspecies • Northwest African cheetah

• Asiatic cheetah

• Balkan lynx

• South China tiger

• Malayan tiger

• Sunda Island tiger

• *Sumatran tiger

• Indochinese leopard

• Arabian leopard

• Amur leopard

• Anatolian leopard

• Iriomote cat Subpopulations • African wild dog (2 subpopulations)

• Lion (1 subpopulation)

• Anatolian leopard

• *Persian leopard (several subpopulations)

Eulipotyphla
• Phillips' Congo shrew

• Andaman shrew

• Harenna shrew

• Jenkins' shrew

• Nicobar shrew

• Christmas Island shrew (possibly extinct)

• Wimmer's shrew

• Nelson's small-eared shrew

• Eisentraut's mouse shrew

• Sclater's shrew

• San Cristobal shrew

• Russian desman

Lagomorpha
• Riverine rabbit

• San Jose brush rabbit

Rodents
There are 58 species and one subspecies of rodent assessed as critically endangered.

Hystricomorpha
• Bolivian chinchilla rat

• Garrido's hutia (possibly extinct)

• Santa Catarina's guinea pig

• Reig's tuco-tuco

• Roig's tuco-tuco

• Social tuco-tuco

• Mexican agouti

• Dwarf hutia (possibly extinct)

• San Felipe hutia (possibly extinct)

• Pacific degu

• Mantiqueira Atlantic tree-rat

• Short-furred Atlantic tree-rat

• Red-crested tree rat

• Golden vizcacha rat

• Chalchalero viscacha rat

Myomorpha
There are 37 species in Myomorpha assessed as critically endangered.

Murids
• Elvira rat

• Dahl's jird

• Ethiopian amphibious rat

• Poncelet's giant rat

• Muennink's spiny rat

• Biak giant rat

• Emma's giant rat

• Emperor rat

• Guadalcanal rat

• Carpentarian rock rat

• Central rock rat



Cricetids
• European hamster

• Chinanteco deer mouse

• Delicate deer mouse

• Ixtlán deer mouse

• Zempoaltepec deer mouse

• Habromys schmidlyi

• Zuniga's dark rice rat

• Bavarian pine vole

• Nelson's woodrat

• Perote mouse

• Burt's deer mouse

• Dickey's deer mouse

• Angel Island mouse

• San Lorenzo mouse

• Maya mouse

• Puebla deer mouse

• False canyon mouse

• Catalina deer mouse

• San Esteban Island mouse

• Cozumel harvest mouse

• Chiapan climbing rat

• Tumbala climbing rat

Nesomyids

 * Mount Kahuzi climbing mouse

Castorimorpha
Species • San Quintin kangaroo rat

• Tropical pocket gopher

• Big pocket gopher Subspecies
 * Alcorn's pocket gopher

Sciuromorpha

 * Namdapha flying squirrel
 * Vancouver Island marmot

Bats
• Bulmer's fruit bat (Aproteles bulmerae)

• Seychelles sheath-tailed bat (Coleura seychellensis)

• Philippine naked-backed fruit bat (Dobsonia chapmani)

• Thongaree's disc-nosed bat (Eudiscoderma thongareeae)

• Kolar leaf-nosed bat (Hipposideros hypophyllus)

• Lamotte's roundleaf bat (Hipposideros lamottei)

• Fijian monkey-faced bat (Mirimiri acrodonta)

• Bala tube-nosed bat (Murina balaensis)

• Gloomy tube-nosed bat (Murina tenebrosa) (possibly extinct)

• Armenian whiskered bat (Myotis hajastanicus)

• Yanbaru whiskered bat (Myotis yanbarensis)

• New Zealand greater short-tailed bat (Mystacina robusta) (possibly extinct)

• Jamaican greater funnel-eared bat (Natalus jamaicensis)

• New Caledonian long-eared bat (Nyctophilus nebulosus)

• New Guinea big-eared bat (Pharotis imogene) (possibly extinct)

• Jamaican flower bat (Phyllonycteris aphylla)

• Canary long-eared bat (Plecotus teneriffae)

• Sardinian long-eared bat (Plecotus sardus)

• Greater monkey-faced bat (Pteralopex flanneryi)

• Montane monkey-faced bat (Pteralopex pulchra) (possibly extinct)

• Aru flying fox (Pteropus aruensis) (possibly extinct)

• Livingstone's fruit bat (Pteropus livingstonii)

• Vanikoro flying fox (Pteropus tuberculatus)

• Hill's horseshoe bat (Rhinolophus hilli)

Other mammals
Species

• African forest elephant

• Pygmy three-toed sloth

• De Winton's golden mole (possibly extinct)

• Sunda pangolin

• Chinese pangolin

• Attenborough's long-beaked echidna

• Bird's Head long-beaked echidna

Subspecies Subpopulations
 * Sumatran elephant
 * Juliana's golden mole (1 subpopulation)