Euprepiosaurus is a subgenus of monitor lizards found in the Malay Archipelago and northern Australia, which includes small to medium sized species.
Classification.
In 1988, the tree monitors that now form the subgenus "Hapturosaurus" were instead placed within "Euprepriosaurus" alongside the mangrove monitors. Nevertheless, there was a distinction between mangrove and tree monitors that was clear even then, so "Euprepriosaurus" was commonly considered to consist of two species complexes, i.e., the "V. indicus" complex and the "V. prasinus" complex. In 2016, Yannick Bucklitsch, Wolfgang Böhme, and André Koch found the two species complexes sufficiently morphologically, ecologically, and biologically distinct, and so all species within the "V. prasinus" complex were moved under a newly erected subgenus, i.e., "Hapturosaurus". "Euprepriosaurus" and "Hapturosaurus" diverged from each other during the late Miocene.
Species complexes.
"Euprepiosaurus" consists of three species complexes: