The Sumatran tiger is a population of Sunda Island tiger (Panthera tigris sondaica) on the Indonesian island of Sumatra. This is the only surviving tiger population in the Sunda Islands, where the Bali and Javan tigers are extinct. Sequences from...
The Sumatran orangutan (Pongo abelii) is one of the three species of orangutans. Critically Endangered, and found only in the north of the Indonesian island of Sumatra, it is rarer than the Bornean orangutan but more common than the recently...
The Malayan tapir (Tapirus indicus) (otherwise known as Asian tapir) is the only living species of Old World tapir. There are only 4 tapir species around the globe, and this animal is the largest of them. Meanwhile, the Asian tapir is the most...
The Tapanuli orangutan (Pongo tapanuliensis) is a species of orangutan found in the island of Sumatra in Indonesia. It is one of three known species of orangutan, alongside the Sumatran orangutan, found farther northwest on the island, and the...
The Siamang gibbon (Symphalangus syndactylus) is an arboreal, black-furred gibbon native to the forests of Southeast Asia. The largest of the gibbons, the siamang can be twice the size of other gibbons. It is the only species in the genus...
The Sumatran elephant (Elephas maximus sumatranus) is one of three recognized subspecies of the Asian elephant. In 2011, IUCN upgraded the conservation status of the Sumatran elephant from endangered to critically endangered in its Red List as the...
The Lar gibbon (Hylobates lar) is a captivating primate and a master of agility, being remarkably fast when swinging through the trees from branch to branch. It has long arms and hands, perfectly adapted to this means of locomotion. It is an...
The Agile gibbon (Hylobates agilis), a is an endangered primate found in Southeast Asia. Like all gibbons, they move by swinging from branch to branch for distances up to 15 m (50 ft) and can also make leaps up to 8 m (26 ft), and walk bipedally...
The Sunda slow loris (Nycticebus coucang ) or greater slow loris is a strepsirrhine primate and a species of slow loris native to Indonesia, West Malaysia, southern Thailand and Singapore. It measures 27 to 38 cm (11 to 15 in) from head to tail and...
The pig-tailed langur (Simias concolor ), monotypic in genus Simias, is a large Old World monkey, endemic to several small islands off the coast of Sumatra in Indonesia. Its face is black, its fur is blackish-brown and it has a relatively short...
The Asian arowana (Scleropages formosus) comprises several phenotypic varieties of freshwater fish distributed geographically across Southeast Asia. While most consider the different varieties to belong to a single species, work by Pouyaud et al....
The dhole (; Cuon alpinus ) is a canid native to Central, South, East, and Southeast Asia. Other English names for the species include Asian wild dog, Asiatic wild dog, Indian wild dog, whistling dog, red dog, and mountain wolf. It is genetically...
The Malaysian giant turtle or Bornean river turtle (Orlitia borneensis ) is a species of turtle in the family Bataguridae. It is monotypic within the genus Orlitia. It is found in Indonesia and Malaysia.This species is the largest freshwater turtle...
The Sumatran ground cuckoo (Carpococcyx viridis ) is a large, terrestrial species of cuckoo. It was introduced to Western science in 1879 and was formerly considered conspecific with the Bornean ground cuckoo but was given status as a unique species...
Kloss's gibbon (Hylobates klossii ), also known as the Mentawai gibbon, the bilou or dwarf siamang, is an endangered primate in the gibbon family, Hylobatidae. It is identifiable in that it is all black, resembling the siamang with its black fur,...
The Sumatran clouded leopard (Neofelis diardi diardi ) is a subspecies of the Sunda clouded leopard and is native to the Indonesian islands of Sumatra and Batu. It differs in molecular, craniomandibular and dental characteristics from the Bornean...
The Pagai Island macaque (Macaca pagensis ), also known as the Pagai macaque or Bokkoi, is an Old World monkey endemic to the Mentawai Islands off the west coast of Sumatra. It is listed as critically endangered on the IUCN Red List due to its...
The black-crested Sumatran langur (Presbytis melalophos ) is a species of primate in the family Cercopithecidae. It is endemic to Sumatra in Indonesia. Its natural habitat is subtropical or tropical dry forests. It is threatened by habitat loss.The...
The Siberut macaque (Macaca siberu ) is a vulnerable species of macaque, which is endemic to Siberut Island in Indonesia. It was formerly considered conspecific with the Pagai Island macaque (M. pagensis ) which is overall paler in color, but this...
The silvery pigeon (Columba argentina ), also known as silvery wood-pigeon or grey wood-pigeon is a species of pigeon found in Indonesia and Malaysia. It was thought to be extinct but wild populations rediscovered in 2008 near Masokut Island might...
The Mentawai langur (Presbytis potenziani ) is a species of primate in the family Cercopithecidae. It is endemic to the Mentawai Islands in Indonesia. Its natural habitat is subtropical or tropical dry forests. The Siberut langur (P. siberu ) was...
The Sumatran lar gibbon (Hylobates lar vestitus ), also known as the Sumatran white-handed gibbon, is a subspecies of the lar gibbon, a primate in the gibbon family Hylobatidae. It is native to the island of Sumatra, Indonesia. It shares the tree...
The Bangka slow loris (Nycticebus bancanus ) is a strepsirrhine primate and a species of slow loris that is native to southwestern Borneo and the island of Bangka. Originally considered a subspecies or synonym of the Bornean slow loris...
The Sumatran laughingthrush (Garrulax bicolor ), also known as the black-and-white laughingthrush, is a member of the family Leiothrichidae. It was formerly treated as a subspecies of the white-crested laughingthrush (G. leucolophus ), but unlike...
Rück's blue flycatcher (Cyornis ruckii ) is a passerine bird in the Old World flycatcher family Muscicapidae. It is known from only four specimens and is endemic to a small area in northeast Sumatra, Indonesia, inhabiting primary lowland forest....
The giant freshwater stingray (Urogymnus polylepis, also widely known by the junior synonym Himantura chaophraya) is a species of stingray in the family Dasyatidae. It is found in large rivers and estuaries in Southeast Asia and Borneo, though...
The Mentawi flying squirrel (Iomys sipora ) is a species of rodent in the family Sciuridae. It is endemic to Indonesia where it is only known from the Mentawai Islands (Sipura and North Pagai). Its natural habitat is lowland tropical primary forest...
The Sipora flying squirrel (Hylopetes sipora ) is a species of rodent in the family Sciuridae. It is endemic to Indonesia. Its natural habitat is subtropical or tropical dry forests. It is threatened by habitat loss.
The narrow sawfish (Anoxypristis cuspidata), also known as the pointed sawfish or knifetooth sawfish, is a species of sawfish in the family Pristidae, part of the Batoidea, a superorder of cartilaginous fish that include the rays and skates. Sawfish...
The honeycomb whipray (Himantura undulata) is a species of stingray in the family Dasyatidae, found widely in the shallow coastal waters of the Indo-Pacific from India to the Malay Archipelago. This large species grows to 1.3 m (4.3 ft) across and...
The Toba betta (Betta rubra) is a species of gourami endemic to Sumatra, Indonesia where it is an inhabitant of peat swamps. The species grows to a length of 5 centimetres (2.0 in) TL, and it can also be found in the aquarium trade.
The roughback whipray (Fluvitrygon kittipongi) is a rare species of freshwater stingray in the family Dasyatidae, found over sandy bottoms in the Mae Klong and Chao Phraya Rivers of Thailand. Growing no more than 29 cm (11 in) across, this small ray...
Betta burdigala is a species of gourami endemic to Bangka Island in Indonesia. It is an inhabitant of peat swamps. This species grows to a length of 2.5 cm (0.98 in).
The burnt-tailed barb (Balantiocheilos ambusticauda), also known as Siamese bala-shark, is a possibly extinct freshwater fish species from the family Cyprinidae. It is or was endemic to the Mae Klong and Chao Phraya River basins in Thailand.
The whitespotted whipray or sharpnose stingray (Maculabatis gerrardi) is a species of stingray in the family Dasyatidae. It is found in coastal regions including estuaries, in the Indo-Pacific, and has also been recorded in the Ganges River. It...
The eyespot rasbora (Brevibora dorsiocellata) is a small fish belonging to the Family Cyprinidae, subfamily Danioninae, which is known by the common names of ocellated rasbora, hi-spot rasbora, and eye-spot rasbora, an allusion to the marking...
Betta miniopinna is a species of gourami endemic to Bintan Island in the Riau Archipelago of Indonesia. The species reaches 2.4 cm (0.9 inches) in standard length and is believed to be a facultative air-breather.
Betta spilotogena is a species of gourami endemic to Indonesia where it is only known from the islands of Bintan and Singkep. It inhabits swamps and nearby streams preferring areas with plentiful vegetation and 0.5 metres (1.6 ft) or less in depth....
