Corseria corsica
Corseria corsica is a species of minute freshwater snail with an operculum, an aquatic gastropod micromollusc in the family Moitessieriidae. This species is endemic to the island of Corsica, a department of France. The IUCN regards C. corsica as Critically Endangered (Possibly Extinct) as it has not been observed for 16 years. References

 Bernasconi, R. (1994). Le genre Moitessieria Bgt, 1863 en France: Révision, inventaire et description de M. corsica n. sp. (Mollusca Gasteropoda Prosobranchia Hydrobiidae). Mémoires de Biospéologie. 21: 7-20

Moitessieriidae
Endemic molluscs of Metropolitan France
Gastropods described in 1994
Taxonomy articles created by Polbot
Cave snails
Endemic fauna of Corsica