metamorphosis occurring after 28 days but closer to 21 days in warmer areas. Recently metamorphosed knife-footed frogs are observed usually from January to March. Conservation The knife-footed frog was last assessed by the IUCN in 2004 and was assessed as Least Concern. The reasons given for this assessment were that the species had a widespread distribution, and the population was presumed large with no evidence of rapid decline. In South Australia, the knife-footed frog is listed as Rare under the National Parks and Wildlife Act 1972. Species are listed in this category if they have small populations (<3000 individuals) and restricted or fragmented ranges. References Ranoidea (genus) Amphibians of South Australia Amphibians of Queensland Amphibians of the Northern Territory Amphibians of Western Australia Taxonomy articles created by Polbot Amphibians described in 1940 Frogs of Australia Taxobox binomials not recognized by IUCN