A species that is extinct in the wild (EW) is one that has been categorized by the International Union for Conservation of Nature as only consisting of living members kept in captivity or as a naturalized population outside its historic range. Classification requires exhaustive surveys conducted within the species' known habitat with consideration given to seasonality, time of day, and life cycle. Once a species is classified as EW, the only way for it to be downgraded is through reintroduction.
Partula arguta was a species of air-breathing tropical land snail, a terrestrial pulmonate gastropod mollusk in the family Partulidae. This species is endemic to French Polynesia. The last captive individual died on April 14, 1994, and the species is considered possibly extinct, with a 85-90% chance of being extinct.
Partula dentifera is an extinct species of air-breathing tropical land snail, a terrestrial pulmonate gastropod mollusk in the family Partulidae. This species was endemic to the Raiatea in the Society Islands of French Polynesia, where the last live individual was seen in 1972. It was officially declared extinct by the International Union for Conservation of Nature in June 2024.
Partula dolorosa was a species of air-breathing tropical land snail, a terrestrial pulmonate gastropod mollusk in the family Partulidae. This species was endemic to a highland on Raiatea, French Polynesia. It is now extinct.
Partula hebe is a species of air-breathing tropical land snail, a terrestrial pulmonate gastropod mollusk in the family Partulidae. This species was endemic to Ra'iātea, French Polynesia. It is now extinct in the wild.
Partula jackieburchi is an extinct species of tropical, air-breathing land snail, a terrestrial, pulmonate, gastropod mollusk in the family Partulidae.
Partula langfordi was a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Partulidae. This species was known by the common name Langford's tree snail and endemic to the Northern Mariana Islands. It was recently declared extinct by the International Union for Conservation of Nature in June of 2024.
Partula mirabilis, common name the Moorean viviparous tree snail, 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.
Partula mooreana, common name the Moorean viviparous tree snail, is a species of air-breathing tropical land snail, a terrestrial pulmonate gastropod mollusk in the family Partulidae. This species was endemic to French Polynesia. It is now extinct in the wild.
Partula nodosa, commonly known as the Polynesian tree snail, is a species of air-breathing tropical land snail, a terrestrial pulmonate gastropod mollusk in the family Partulidae.
Partula rosea is a species of air-breathing tropical land snail, a terrestrial pulmonate gastropod mollusk in the family Partulidae.
Partula suturalis, commonly called the moorean viviparous tree snail or the 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.
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.
Partula tohiveana, one of several species with the common name Moorean viviparous tree snail, is a species of air-breathing tropical land snail, a terrestrial pulmonate gastropod mollusk in the family Partulidae. This species was endemic to highlands on Moorea, French Polynesia. It is now extinct in the wild.
Partula varia is a species of air-breathing tropical land snail, a terrestrial pulmonate gastropod mollusk in the family Partulidae. This species is endemic to Huahine, French Polynesia. It was extinct in the wild. In 2019 the species was reintroduced to the wild on Huahine.
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.
Partula is a genus of air-breathing tropical land snails, terrestrial pulmonate gastropod mollusks in the family Partulidae.
Partula taeniata nucleola is a subspecies of Partula taeniata endemic to northwestern Moʻorea in French Polynesia. It was estimated that it would go extinct in 1986 or 1987 if no conservation actions were taken. As of 2021, it had one wild population and was being released as part of a captive-breeding program. Wild individuals from Faatoai Valley have also been genotyped.
