The Western swamp tortoise (Pseudemydura umbrina) is a small, short-necked turtle.It has a brown squarish shell of up to 15 cm in length, with females being smaller than males. It has the smallest surviving population of any Australian reptile. If you find a sick or injured turtle, please contact one of our emergency turtle rescue numbers. Taxonomy Family: Chelidae Genus: Pseudemydura Species: umbrina Other common names: western swamp turtle, short-necked tortoise, Yarkiny Distribution and Habitat The western swamp tortoise was thought to have been extinct for over 100 years prior to its rediscovery in … The Western Swamp Tortoise (Pseudemydura umbrina) is Australia’s rarest reptile.Originally it was known only from a single specimen collected in 1839 from an unknown location in Western Australia. Western swamp tortoise (Pseudemydura umbrina) was rediscovered in Western Australia in 1954. The Western Swamp Tortoise is a critically endangered freshwater chelid turtle found only in a very restricted region near Perth in Western Australia (Burbidge, 1981, Kuchling et al., 1992). Taxon: Species Pseudemydura umbrina Siebenrock, 1901 - western swamp turtle (reptile) The Western Swamp Tortoise is listed as endangered under the Environment Protection and Biodiversity Conservation Act 1999. This Act is the main Commonwealth legislation for … Regional areas Threatened Species Day fact sheet The Western Swamp Tortoise is one of Australia's most endangered reptiles. It is a relict species of a monotypic genus, of very restricted range and specialized habitat. During 1995, an intensive search for Swamp Tortoises was carried out in swamps at Perth Airport on land vested, at that time, in the Federal Airports Corporation (FAC) on behalf of the Commonwealth of Australia. Disclaimer: ITIS taxonomy is based on the latest scientific consensus available, and is provided as a general reference source for interested parties. phylum Chordata The western swamp turtle (Pseudemydura umbrina), also known as the western swamp tortoise, is a short-necked freshwater turtle that is the sister taxon to all other members of the subfamily Chelodininae.Adult males do not exceed a length of 155 mm or a weight of 550 g. Females are smaller, not growing beyond 135 mm in carapace length or a weight of 410 g. A Western Swamp Tortoise was recorded in a swamp at Perth Airport in September 1970. western swamp tortoise; Taxonomic Tree Top of page. However, it is not a legal authority for statutory or regulatory purposes. 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