Conservationists announced Thursday that they had found a population of around 500 individuals of gray-shanked douc langur (Pygathrix cinerea) in Kon Tum Province.
Trinh Dinh Hoang, who led a survey group at the conservation organization Fauna and Flora International (FFI) Vietnam, said that it was "an honor" for them to make the discovery.
According to Benjamin Rawson, FFI Vietnam program director, the primate species is unique to Vietnam.
Despite the discovery, the species is still on the verge of extinction and FFI is doing its best to prevent this, he said at a press briefing in Ho Chi Minh City.
He called for more coordination among the government, local community, scientists and Samaritans to protect the species.
The population of gray-shanked douc langur is between 800-1,000 individuals, only found in central Vietnam.
It has been listed among the world’s 25 most endangered primate species and is being threatened by deforestation and poaching.
The list also include three other endangered species in Vietnam, including Delacour's langur (Trachypithecus delacouri) with about 60 individuals, white-headed langur (Trachypithecus poliocephalus) with 260 individuals and tonkin snub-nosed monkey (Rhinopithecus avunculus) with about 250 individuals.