(H. H. Smith, 1922)
The †agate rocksnail, scientific name Leptoxis clipeata, was a of freshwater snail in the family Pleuroceridae. Like all Leptoxis, the species required free-flowing unpolluted water. It was endemic to parts of the Coosa River in Alabama, now impounded. 
- Burch, (1982) Freshwater Snails (Mollusca: Gastropoda) of North America. United States Environmental Protection Agency, Cincinnati, Ohio.
- Bogan, A.E. 2000. Leptoxis clipeata. 2006 IUCN Red List of Threatened Species. Downloaded on 7 August 2007.
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