Namdapha flying squirrel

The Namdapha flying squirrel (Biswamoyopterus biswasi) is a rare flying squirrel known from a single specimen collected in Namdapha National Park in Arunachal Pradesh, northeast India, in 1981. The animal has reddish, grizzled fur, an orangish gliding membrane and white underparts, with a head and body of about 40 centimetres and a tail of about 60 centimetres. Its scientific name honours Biswamoy Biswas, a director of the Zoological Survey of India, and it was the first species placed in the genus Biswamoyopterus; a Laotian species followed in 2013 and a Chinese one in 2018. It is thought to live in tall Mesua ferrea forest on hill slopes in the Dihing River drainage, feeding on young leaves and shoots in the upper canopy. The IUCN lists it as Critically Endangered, with poaching for food and possible habitat destruction as threats, and it is one of the 25 most wanted lost species in the Re:wild search for lost species.