Elimia gibbera

Elimia gibbera, the shouldered elimia, is a species of freshwater snails in the family Pleuroceridae. This species was endemic to Alabama, the United States,^[1][4] with records from the Coosa River.^[3][2] It is now considered extinct,^[1][2] the attributed cause is land-use change.^[5] Already in 1936, Calvin Goodrich wrote that "To a large extent, the goniobasic fauna of the Coosa Biver must be spoken of in the past tense".^[3]

Elimia gibbera
Conservation status
Extinct  (IUCN 2.3)[1]
Presumed Extinct  (NatureServe)[2]
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Family:	Pleuroceridae
Genus:	Elimia
Species:	†E. gibbera
Binomial name
†Elimia gibbera (Goodrich, 1936)
Synonyms
Goniobasis gibbera Goodrich, 1936[3]

Description

The shell in adults measures 17–20 mm (0.67–0.79 in) in length and 9–11 mm (0.35–0.43 in) in width.^[3]