The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, founded in 1964, is the world's most comprehensive inventory of the global conservation status of biological species. It uses a set of precise criteria to evaluate the extinction risk of thousands of species and subspecies. These criteria are relevant to all species and all regions of the world. With its strong scientific base, the IUCN Red List is recognized as the most authoritative guide to the status of biological diversity. A series of Regional Red Lists are produced by countries or organizations, which assess the risk of extinction to species within a political management unit.
The common wombat, also known as the coarse-haired wombat or bare-nosed wombat, is a marsupial, one of three extant species of wombats and the only one in the genus Vombatus. The common wombat grows to an average of 98 cm (39 in) long and a weight of 26 kg (57 lb).
The lesser yellow bat is a vesper bat found only on Madagascar and Réunion. On Réunion, it was considered common early in the 19th century, but was last sighted late in the 19th century. Only a single specimen attributed to this species, collected in 1868, is known from Madagascar. It was listed as a critically endangered species in 1996 due to habitat loss, and may be extinct.
An IUCN Red List Critically Endangered (CR) species is one that has been categorized by the International Union for Conservation of Nature as facing an extremely high risk of extinction in the wild. As of 2021, of the 120,372 species currently tracked by the IUCN, there are 8,404 species that are considered to be Critically Endangered.
A species that is extinct in the wild (EW) is one that has been categorized by the International Union for Conservation of Nature as known only by living members kept in captivity or as a naturalized population outside its historic range due to massive habitat loss.
†Pseudohelenoconcha was a genus of air-breathing land snails, shell-less terrestrial pulmonate gastropod mollusks in the family Endodontidae.
The Lake Pedder planarian is a species of invertebrate in the family Dugesiidae.
The Lake Pedder earthworm is an extinct earthworm species in the family Megascolecidae. Its genus Hypolimnus is monotypic.
Partula taeniata, common name the Moorean viviparous tree snail, is a species of terrestrial gastropod in the Partulidae family. It is endemic to French Polynesia.
