The Horn Scientific Expedition was the first primarily scientific expedition to study the natural history of Central Australia, sponsored by three Australian universities (University of Sydney, University of Adelaide and University of Melbourne). It took place from May to August 1894, with expedition members first traveling by train from Adelaide to the railhead at Oodnadatta in South Australia, then using camels for transport to traverse over 3000 km of largely uncharted country from Oodnadatta through the Finke River basin to Alice Springs and the Macdonnell Ranges in what is now the Northern Territory.
The expedition was equipped and sponsored by William Austin Horn, a wealthy pastoralist and mining magnate, who accompanied the expedition in its early stages. The area studied included the country of the Arrernte and Luritja people, whose assistance and goodwill was crucial to the success of the expedition through the provision of natural history specimens, artefacts and information.
Members of the expedition, with their responsibilities, included:
- Professor Baldwin Spencer – zoology and photography, who also edited the official account of the expedition for publication
- Dr Edward Charles Stirling – anthropology, who acted as the medical officer
- Professor Ralph Tate – geology and botany
- J. A. Watt – geology and mineralogy
- C. Winnecke – meteorology, as well as being the surveyor and leader
Among the achievements of the expedition was the collection and description of new mammal species, some of which are now locally extinct or threatened, including the:
- Fat-tailed false antechinus
- Sandhill dunnart
- Stripe-faced dunnart
- Central rock rat
- Shark Bay mouse
- Sandy inland mouse
- Spinifex hopping mouse
The expedition was the first to collect fishes from central Australia. New species were described as well as new records made of others. Findings included the lack of evidence for aestivation by desert fish and the importance of flooding for dispersal.
- "The Horn Expedition". National Film and Sound Archive. Retrieved 1 May 2015.
- SA Museum – Speaking Land accessed 19 November 2007
- (1897). The Horn Expedition to Central Australia. Geographical Journal 10(1): 51-53
- Eaton, E.H. (1900). The Zoology of the Horn Expedition. American Naturalist 34, no.397, pp.25-31
- Museum Victoria - Walter Baldwin Spencer and the Horn Expedition accessed 19 November 2007
- Desert Fishes - Past and present ichthyological work in central Australia accessed 19 November 2007
- Spencer, Baldwin. (Ed). (1896). Report on the Work of the Horn Expedition to Central Australia. (4 vols). Dulau and Co: London; and Melville, Mullen & Slade: Melbourne.