Sri Lankan green pit viper

Description:

Sri Lankan green pit viper, is a venomous pit viper species endemic to Sri Lanka.It is arboreal and nocturnal, occasionally descending to the ground in search of food such as lizards, frogs, small mammals, and birds. This sluggish pit viper is usually encountered on low shrubs during morning hours, but it mostly occupies in grasslands and rain forests. In mornings, it is seen to stay on top of trees to obtain sun rays to heat its body. It uses its tail to hold on to a tree branch. This is not a particularly defensive species.The venom is primarily haemotoxic, with victims experiencing severe pain and swelling of the bitten area, oedema and blisters, and localized tissue necrosis; the pain of the wound may last for a few days. Ptosis and lymphadenopathy takes place. (Details-http://en.wikipedia.org/wiki/Trimeresurus_trigonocephalus)

Habitat:

It is widely distributed in all three climatic zones(Dry,Wet & intermediate) of the island, except higher hills and arid zones, while relatively more common in wet zone grasslands and rain forest areas and occasionally in plantations of cardamom, cocoa, coffee, and tea, from the lower altitudes from 153 to 1,800 m.

Notes:

It was found at the Gannoruwa forest reserve, Sri Lanka....