Liolaemus magellanicus
Liolaemus magellanicus, also known as Magellan's tree iguana, is a species of lizard in the family Iguanidae, notable for being the southernmost lizard species in the world. Distribution 
It is found in Patagonia and Isla Grande de Tierra del Fuego in Chile and Argentina. References

magellanicus
Lizards of South America
Reptiles of Chile
Reptiles described in 1853