Aphaostracon
Aphaostracon is a genus of very small or minute freshwater snails in the family Cochliopidae that have an operculum. Aphaostracon species are endemic to restricted areas in Florida, often to a single spring or spring run. Species
This genus includes the following species:
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One or more additional Aphaostracon species have been reported from springs in Florida, including Bugg Spring, De Leon Springs, and Green Springs. The snails from the three springs have not described  in an authoritative publication, and it is not known if they belong to one, two, or three species. References

  Hershler R. & Thompson F.G. (1992) A review of the aquatic gastropod subfamily Cochliopinae (Prosobranchia: Hydrobiidae). Malacological Review suppl. 5: 1-140. Further reading

 
Cochliopidae
Taxonomy articles created by Polbot