The gold tegu, also known as golden tegu, common tegu, black tegu, Colombian tegu, and tiger lizard (on Trinidad), is a species of tegu. Its old scientific name (synonym) was Tupinambis nigropunctatus, but it has since renamed to Tupinambis teguixin.
Tupinambis is a lizard genus which belongs to the family Teiidae, and contains eight described species. These large lizards are commonly referred to as tegus (teiús in Portuguese); T. merianae (Argentine black and white tegu), T. rufescens (red tegu), and T. teguixin (gold tegu) are popular in the pet trade.