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.
The Daghestan pine vole is a species of rodent in the family Cricetidae. It is found in Russia, Georgia, Armenia, and Azerbaijan.
The Somali hedgehog is a species of mammal in the family Erinaceidae. It is endemic to Somalia and Somaliland. The Somali hedgehog is nocturnal.
The Oriental shrew is a species of mammal in the family Soricidae. It is endemic to Indonesia.
The pale gray shrew is a species of mammal in the family Soricidae. It is endemic to Pakistan and is distributed in the Shigar valley and the western edge of Deosai.
The long-tailed brown-toothed shrew is a species of mammal in the family Soricidae. It is found in China, India, Myanmar, Nepal, and Vietnam.
The Lowe's shrew is a species of mammal in the family Soricidae. It is found in China, Myanmar, Thailand, and Vietnam.
Speleoperipatus is a monospecific genus of velvet worm in the Peripatidae family, containing the single species Speleoperipatus spelaeus. This species is a pale greenish yellow, almost white, with 22 or 23 pairs of legs and no eyes. Specimens range from 27 mm to 34 mm in length. The minimum number of leg pairs found in this species (22) is also the minimum number found in the neotropical Peripatidae. This velvet worm is viviparous, with mothers supplying nourishment to their embryos through a placenta.
Helminthoglypta allynsmithi, the Merced Canyon shoulderband or Allyn Smith's banded snail, is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Helminthoglyptidae. This species is endemic to the United States.
Helminthoglypta is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the subfamily Helminthoglyptinae of the family Xanthonychidae.
The Victorville shoulderband is a species of land snail in the family Helminthoglyptidae.
Helminthoglypta nickliniana, common name "Nicklin's Peninsula snail" or "Coast Range shoulderband" is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Helminthoglyptidae.
The Guadalupe-Nipomo Dunes National Wildlife Refuge is a 2,553-acre (10.33 km2) protected area located along the Central Coast of California, in southern San Luis Obispo and northern Santa Barbara Counties.
A vulnerable species is a species which has been categorized by the International Union for Conservation of Nature as being threatened with extinction unless the circumstances that are threatening its survival and reproduction improve.
Helminthoglypta sequoicola, the redwood shoulderband snail, is a North American species of air-breathing land snail. Two subspecies are recognized:
