Skin coloration may vary from off-white to cream to light green, overlain with irregular blotches of brown or brick-red speckles (Government of Western Australia 2010).
A closely related species, the Southern Sandhill frog, Arenophryne xiphorhyncha, was earlier thought to be identical to A. rotunda; however, more detailed analysis reveals this closely related species residing in the Kalbarri dunes, is a distinct taxon. These two taxa apparently genetically diverged approximately five to seven million years before present.
There are a number of faunal associates in this coastal zone of the Southwest Australian savanna (Hogan and World Wildlife Fund 2012). Notable avifauna include the Near Threatened blue-billed duck (Oxyura australis), the Vulnerable fairy tern (Sterna nereis), and the Vulnerable fat eastern curlew (Numenius madagascariensis).
Notable reptile associates include a swimming skink, the Vulnerable Shark Bay ctenotus (Ctenotus zastictus), which is also found on the dunes of Shark Bay; and the Christina's lerista (Lerista christinae), a species also endemic to the coastal zone of the Southwestern Australian savanna; and the Endangered woma (Aspidites ramsayi).
Notable mammals with overlap or near overlap of range include the Near Threatened black-footed rock wallaby (Petrogale lateralis), although the limits of this wallaby's distribution have shrunk due to its recent population decline.
- Barker, J., Grigg, G. C., and Tyler, M. J. (1995). A Field Guide to Australian Frogs. Surrey Beatty and Sons, New South Wales.
- Roberts, J.D. (1984). ''Terrestrial egg and deposition and direct development in Arenophryne rotunda, a myobatrachid frog from the coastal sand dunes at Shark Bay, Western Australia.'' Australian Wildlife Research, 11, 191-200.
- Tyler, M.J., Smith, L.A., and Johnstone, R.E. (1994). Frogs of Western Australia. Western Australian Museum, Perth.
- Cartledge, V.A., Withers P.C., Thompson G.G., and McMaster K.A. (2006). ''Water Relations of the Burrowing Sandhill Frog, Arenophryne rotunda.'' Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology, 176(4), 295-302.
- Hero, J. & Roberts, D. 2004. Arenophryne rotunda. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. www.iucnredlist.org. Downloaded on October 2012.
- Hogan, C.M. & World Wildlife Fund. 2012. Southwest Australia savanna. Ed. Peter Saundry. Encyclopedia of Earth. National Council for Science and the Environment, Washington DC, USA
- Tyler, M. J. (1998). Australian Frogs: A Natural History. Cornell University Press, Ithaca, New York.