Japalura austeniana
Range
Bhutan, north-east India (Assam, Arunachal Pradesh) and Tibet (China)
Size
Tail very long, about 23 cm
The Abor Hills agama or Annandale's dragon (Japalura austeniana) is a rare agamid endemic to Asia, found in Bhutan and north-eastern India, with the Reptile Database also listing Tibet in China. The type locality is the hills near Harmatti in Assam (the Dafla Hills). (The Reptile Database; Wikipedia, general species account)
Its tail is very long, about 23 cm. (Wikipedia, general species account)