Colubridae (Colubrids): There are only 2 of this species found on the NSW south coast both occurring close to Sydney. They have either solid teeth and are non-venomous or fangs at the back of the mouth and mildly venomous.

Dendrelaphis punctulata (Green Tree Snake): A slender snake, olive green to yellow underside. It can reach 200cm in length but is usually smaller.
Diurnal and arboreal, lives in hollow trees and rock crevices, in areas of rainforest to dry forest.
Inflates it's body when threatened revealing blue skin between the scales.
Feeds mainly on frogs, lizards and fish.