Cobble elimia
The cobble elimia, scientific name Elimia vanuxemiana, is a species of freshwater snails, aquatic gilled gastropod molluscs with an operculum in the family Pleuroceridae. This species is endemic to Alabama in the United States. As of 2000, the species was considered extinct by the IUCN. It was rediscovered in the wild in 2005, but is still considered critically imperiled. References

Elimia
Endemic molluscs of the United States
Gastropods described in 1843
Taxonomy articles created by Polbot
Endemic fauna of Alabama