Leptoxis lirata (H. H. Smith)

Lirate Rocksnail (Leptoxis lirata 

This species was described in 1922.  

The Lirate Rocksnail or Lyrate Rocksnail was restricted to the middle reaches of the Coosa River in Alabama, USA.  

The species disappeared after the impoundment of the river by the building of dams and is now extinct.  

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edited: 04.11.2017