This undated photo shows an aerial view of the Gaoligong Mountains nature reserve in western Yunnan province. Woolly flying squirrels have been spotted in Gaoligong, a sub-range of the Hengduan Mountains, according to findings published in the Zoological Journal of the Linnean Society.  (PHOTO / XINHUA)

KUNMING - Scientists have discovered two new species of woolly flying squirrels in Southwest China, with findings published in the Zoological Journal of the Linnean Society.

Eupetaurus cinereus is among the rarest and least studied mammals in the world, according to an article published in the Zoological Journal of the Linnean Society

Eupetaurus cinereus is among the rarest and least studied mammals in the world, according to the article released on Monday.

Currently, the animal is classified as Endangered on the International Union for Conservation of Nature Red List, with a population of approximately 1,000 to 3,000, said Li Quan, an author of the article who is attached to the Kunming Institute of Zoology, Chinese Academy of Sciences.

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The research team, with scholars from China, Australia and the United States, discovered the two species in the Tibet autonomous region and Yunnan province.

They have been named Tibetan woolly flying squirrel, or Eupetaurus tibetensis, and Yunnan woolly flying squirrel, or Eupetaurus nivamons.

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The discovery of the species indicates that the Himalayan and Hengduan Mountains regions boast rich biodiversity. 

"Monitoring results showed that their habitats are far from human settlements. We, along with the staff of the nature reserves, will further monitor, study and protect them," Li said.