Varanus prasinus
Date 1700-1880
Source: https://commons.wikimedia.org/wiki/File:Varanus_prasinus_-_1700-1880_-_Print_-_Iconographia_Zoologica_-_Special_Collections_University_of_Amsterdam_-_UBA01_IZ12400001.tif

The emerald tree monitor or green tree monitor (Varanus prasinus) is a small to medium-sized arboreal monitor lizard. Varanus prasinus is known for its unusual coloration, which consists of shades from green to turquoise, topped with dark, transverse dorsal banding. This coloration helps camouflage it in its arboreal habitat. Its colour also makes the emerald tree monitor highly exploited to the pet trade and kept in zoos alike.