White Lipped Viper Trimeresurus albolabris

    Trimeresurus albolabris

    Conservation status:
    Least Concern

    Scientific classification
    Kingdom: Animalia
    Phylum:Chordata
    Subphylum:Vertebrata
    Class:Reptilia
    Order:Squamata
    Suborder: Serpentes
    Family:Viperidae
    Subfamily:Crotalinae
    Genus:Trimeresurus
    Species:T. albolabris

    Green pit viper (Trimeresurus albolabris) is a venomous pit viper species that is endemic to Southeast Asia.

    Maximum total length
    males 600 mm (24 in), females 810 mm (32 in); maximum tail length males 120 mm (4.7 in), females 130 mm (5.1 in).

    Head scalation consists of 10-11(12) upper labials, the first partially or completely fused to the nasal. Head scales small, subequal, feebly imbricate, smooth or weakly keeled. The supraoculars are narrow (occasionally enlarged and undivided) with 8-12 interocular scales between them. Temporal scales smooth.

    Midbody has 21 (rarely 19) longitudinal dorsal scale rows. The ventral scales are 155-166 in males, 152-176 in females. The subcaudals are paired, 60-72 in males, 49-66 in females. The hemipenes are without spines.

    Color pattern: green above, the side of the head below the eyes is yellow, white or pale green, much lighter than rest of head. The belly is green, yellowish or white below. A light ventrolateral stripe is present in all males, but absent in females. The end of tail is not mottled brown.

    Diet
    Its meals consist of birds, small frogs, and small mammals. This snake doesn't strike and release its prey; like many arboreal snakes, it strikes and holds on to the prey item until it dies.