The poʻo-uli, or black-faced honeycreeper, is an extinct species of passerine bird that was endemic to the island of Maui in Hawaiʻi. It is considered to be a member of the Hawaiian honeycreepers, and is the only member of its genus Melamprosops. It had a black head, brown upper parts and pale gray underparts. This bird inhabited only the drier, easternmost side of Maui, where it had rapidly decreased in numbers. With extinction threatening, efforts were made to capture birds to enable them to breed in captivity. This has been largely unsuccessful; in 2004, only two known birds remained, and since then, no further birds have been sighted. A 2018 study recommended declaring the species extinct, citing bird population decline patterns and the lack of any confirmed sightings since 2004, and in 2019, the species was declared extinct.
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.
Achatinella abbreviata, an Oʻahu tree snail, is an extinct species of colorful tropical tree-living air-breathing land snail, an arboreal pulmonate gastropod mollusk in the genus Achatinella.
Achatinella apexfulva is a reportedly extinct species of colorful, tropical, arboreal pulmonate land snail in the family Achatinellidae, once present on Oahu, Hawaii. A. apexfulva is the type species of the genus Achatinella. The specific name, apexfulva, meaning "yellow-tipped", refers to the yellow tip of the snail's shell.
Advena campbelli is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Helicarionidae. This species is endemic to Norfolk Island. It was listed as extinct by the International Union for the Conservation of Nature from 1996. However, the Australian Government lists the species as Critically Endangered, and stated in 2009 that the species' IUCN status was "incorrect and requires updating." A small living population was found in 2020.
Panulena perrugosa was a species of air-breathing land snail or semislug, a terrestrial pulmonate gastropod mollusk in the family Helicarionidae. This species was endemic to Norfolk Island. It was first identified and named in 1945 by Tom Iredale; it was extinct by 1996.
Samoana jackieburchi was a species of tropical, air-breathing land snail, a terrestrial, pulmonate, gastropod mollusk in the family Partulidae. This species was endemic to Tahiti, Society Islands, French Polynesia.
Partula labrusca, was a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the Partulidae family. This species was endemic in Raiatea, the Society Islands of French Polynesia.
†Partula lutea was a species of air-breathing tropical land snail, a terrestrial pulmonate gastropod mollusk in the family Partulidae. This species was endemic to Bora Bora, French Polynesia. It is now extinct. This was a relatively uniform species with several color forms and was originally exceedingly common on Mount Otemanu, yet was originally believed to have become extinct in the early 1990s. Evidence in the condition of recently collected shells show that P. lutea survived 10 years further than it had once been thought. Some shells have been found in lava tubes or under rocky overhangs in forests of Hibiscus tiliaceaus. The species had become extinct due to predation by flatworms, Euglandina, and Lissachatina species. A similar population has been discovered on Maupiti, an island near to Bora Bora, also represented by shells that may have been introduced to the island in the 19th century.
Partula suturalis, common name the moorean viviparous tree snail or sutural partula, is a species of air-breathing tropical land snail, a terrestrial pulmonate gastropod mollusk in the family Partulidae. This species was endemic to the island of Moorea, French Polynesia. It is now extinct in the wild. It was previously listed as extinct in the IUCN Red List of Threatened Species, but has been moved to extinct in the wild since 2009. This error was the result of changing taxonomy.
Posticobia norfolkensis is an extinct species of freshwater snail, an aquatic gastropod mollusk in the family Hydrobiidae, the mud snails. This species was endemic to Norfolk Island.
Quintalia flosculus is an extinct species of air-breathing land snail or semislug, a terrestrial pulmonate gastropod mollusk in the family Helicarionidae. This species was endemic to Norfolk Island.
Quintalia stoddartii is an extinct species of air-breathing land snail or semislug, a terrestrial pulmonate gastropod mollusk in the family Helicarionidae. This species was endemic to Norfolk Island.
An endling is the last known individual of a species or subspecies. Once the endling dies, the species becomes extinct. The word was coined in correspondence in the scientific journal Nature. Alternative names put forth for the last individual of its kind include ender and terminarch.
Partula is a genus of air-breathing tropical land snails, terrestrial pulmonate gastropod mollusks in the family Partulidae. Many species of Partula are known under the general common names "Polynesian tree snail" and "Moorean viviparous tree snail". Partulids are distributed across 5,000 sq mi (13,000 km2) of Pacific Ocean islands, from the Society Islands to New Guinea.
The Aru flying fox is a Critically Endangered species of megabat found in the Aru Islands in Indonesia. It was described by Wilhelm Peters in 1867. It was formerly considered a subspecies of the black-bearded flying fox. The species is poorly known, and has not been encountered since the 19th century. It is classified as critically endangered by the IUCN and is listed on CITES appendix II.
The Aldabra banded snail is a species of air-breathing land snail, a pulmonate gastropod mollusc in the family Cerastidae. The species lives on one atoll in the Seychelles Islands, Indian Ocean, and is easily recognizable for its purplish-blue banded shell. The species was thought to have died out because of climate change, but was rediscovered in 2014.
