rhamphotheca: Forsten’s cat snake (Boiga forsteni)
… is a species of arboreal rear-fanged venomous colubrid found in forests of Nepal, Sri Lanka, and India (Sikkim, Maharashtra, Kerala). The specific name is in honor of Dutch naturalist Eltio Alagondas Forsten (1811–1843). They reach a length of up to almost 6 ft, making them the largest rear fanged snake in India. They feed mainly on birds and bats.
(via: Wikipedia) (image: Asankeg Galgomuwa)