Trimeresurus is a genus of venomous pit vipers found in Asia from the Indian Subcontinent throughout Southeast Asia, China, and the Pacific Islands. Currently 44 species are recognized. Common names include Asian palm pit vipers, Asian lanceheads, and green pit vipers.
Trimeresurus
Image: Trimeresurus albolabris, White lipped pit viper (female) Kaeng Krachan National Park (27493423545)
Image: Andaman Pit Viper Trimeresurus andersoni by Dr. Raju Kasambe DSCN1506 01
Image: Trimeresurus cardamomensis in Khao Wong National Park
The Crotalinae, commonly known as pit vipers, or pit adders, are a subfamily of vipers found in Asia and the Americas. Like all other vipers, they are venomous. They are distinguished by the presence of a heat-sensing pit organ located between the eye and the nostril on both sides of the head. Currently, 23 genera and 155 species are recognized: These are also the only viperids found in the Americas. The groups of snakes represented here include rattlesnakes, lanceheads, and Asian pit vipers. The type genus for this subfamily is Crotalus, of which the type species is the timber rattlesnake, C. horridus.
Pit viper