The heaviest venomous snake is the eastern diamondback rattlesnake (Crotalus adamanteus) of the southeastern USA, which weighs 5.5 – 6.8 kg (12 – 15 lb) and is 1.52- 1.83 m (5 -6 ft) in length. The heaviest on record weighed 15 kg (34 lb) and was 2.36 m (7 ft 9 in) long.
