Monitor lizards studied during the Horn scientific expedition to Central Australia

Plate 10, rusty desert monitor / varanus eremius (figure 1), and Gillen's monitor / varanus gilleni (figure 2). Taken from 'Report on the work of the Horn Scientific Expedition to Central Australia' by William Austin Horn and Baldwin Spencer.

The Horn scientific exploring expedition aimed to investigate natural history in Central Australia, and was sponsored by the University of Sydney, the University of Adelaide, and the University of Melbourne, as well as William Austin Horn.