The Formosan Clouded Leopard (Neofelis nebulosa brachyura) is a subspecies of Clouded Leopard

Clouded Leopard

The clouded leopard is a felid found from the Himalayan foothills through mainland Southeast Asia into China, and has been classified as vulnerable in 2008 by IUCN...

 that was endemic to the island of Taiwan

Taiwan

Taiwan , also known, especially in the past, as Formosa , is the largest island of the same-named island group of East Asia in the western Pacific Ocean and located off the southeastern coast of mainland China. The island forms over 99% of the current territory of the Republic of China following...

 and is now believed to be extinct. Its tail is slightly shorter than that of other subspecies of Clouded Leopard.

The Formosan Clouded Leopard was the second-largest carnivore on Taiwan, after the Formosan Black Bear

Formosan Black Bear

The Formosan black bear , also known as the white-throated bear, is a subspecies of the Asiatic black bear. Formosan black bears are endemic to Taiwan. In 2001, they were voted the most representative wildlife of Taiwan in a half-year long countrywide voting campaign...

. After extensive logging of its natural habitat, the leopards were forced to retreat into the Jade Mountain

Jade Mountain

Yushan in Taiwan is the highest mountain in East Asia and the fourth highest mountain on an island. In the past, Yushan was known among English-speaking expats and missionaries as Mt. Morrison, thought to have been named in honor of the 19th century missionary Robert Morrison...

 and Dawu Mountain. There have been no sightings of this animal since the 1980s.

The Rukai Taiwanese aborigines believed that their ancestors transformed from these leopards.