The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is an inventory of the global conservation status and extinction risk of biological species. A series of Regional Red Lists, which assess the risk of extinction to species within a political management unit, are also produced by countries and organizations.
Aaadonta angaurana is a small air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Endodontidae.
Aaadonta is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Endodontidae. Specimens from this genus are endemic to Palau.
Aaadonta constricta is a species of land snail, a terrestrial pulmonate gastropod mollusk in the family Endodontidae. It is endemic to Palau, where it is known from the islands of Babeldaob, Ngemelis, Peleliu and Koror. It may be extirpated from Koror. It is threatened by habitat destruction and modification.
Aaadonta fuscozonata is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Endodontidae. This species is endemic to Palau, where it is known from Koror and Peleliu, and the small islands of Ngemelis and the northern Rock Islands. This snail inhabits tropical moist lowland forest, and is threatened by the destruction and modification of its habitat.
Aaadonta irregularis is a species of snail, a terrestrial pulmonate gastropod mollusk in the family Endodontidae. It is endemic to Palau, where it was only known from Peleliu, but has only been found recently on the very small island of Omekang. It is threatened by the destruction and modification of its tropical moist lowland forest habitat.
Aaadonta kinlochi is a species of snail, a terrestrial pulmonate gastropod mollusk in the family Endodontidae. It is endemic to Palau, where it was known from Angaur and Ulong Island. If it is still extant, it is threatened by the destruction and modification of its tropical moist lowland forest habitat.
Aaadonta pelewana is a species of snail, a terrestrial pulmonate gastropod mollusk in the family Endodontidae. It is found in Palau, where it was known from Peleliu and Koror. If it is still extant, it is threatened by the destruction and modification of its tropical moist lowland forest habitat.
Bellamya constricta is a species of freshwater snail with a gill and an operculum, an aquatic gastropod mollusc in the family Viviparidae.
Zyzzyxdonta alata is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Endodontidae.
Bellamya is a genus of freshwater snails with a gill and an operculum, aquatic gastropod mollusks in the family Viviparidae.
Yucca constricta known by the common name "Buckley's yucca," is a plant in the family Asparagaceae. It is found in rocky limestone hills of central and eastern Texas, and also in Coahuila, Mexico.
Aaadonta constricta babelthuapi is a subspecies of land snail, a terrestrial pulmonate gastropod mollusk in the family Endodontidae. It is endemic to Palau, where it was previously known from Babeldaob and Ngemelis. It is now only known from Ngatpang. It is threatened by destruction or modification of its habitat.
Aaadonta constricta constricta is a subspecies of land snail, a terrestrial pulmonate gastropod mollusk in the family Endodontidae.
Aaadonta fuscozonata depressa is a subspecies of land snail, a terrestrial pulmonate gastropod mollusk in the family Endodontidae. It is endemic to Palau, where it was only known from the tropical moist lowland forests of Peleliu. It is threatened by destruction and modification of its habitat.
Aaadonta fuscozonata fuscozonata is a subspecies of land snail, a terrestrial pulmonate gastropod mollusc in the family Endodontidae. It is endemic to Palau, where it was previously known from Koror, but has only recently been found on a few of the Rock Islands. It is threatened by destruction and modification of its moist lowland forest habitat.
Aeshna constricta, the lance-tipped darner, is a species of darner in the dragonfly family Aeshnidae. It is found in North America.
