Eastern Water Dragon - Physignathus lesueurii
The Water Dragon is Australia's largest dragon lizard and can be found living along healthy waterways. Sexually dimorphic with males more robust than females. Prominent spines on head and along the length of back, with a laterally compressed body and tail. Long powerful limbs. Olive green to brown in colour with short dark bands on the body, dark stripe behind the eye. Males have a distinctive red flush over the chest.
(Text Source; Wildlife QLD)