Aphaostracon is a genus of very small or minute freshwater snails in the family Cochliopidae that have an operculum.Bouchet, P. (2014). Aphaostracon F. G. Thompson, 1968. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php/aphia.php?p=taxdetails&id=729790 on 2014-11-16
Aphaostracon species are endemic to restricted areas in Florida, often to a single spring or spring run.
Species This genus includes the following species:
+SpeciesSpeciesCommon nameRangeAphaostracon asthenes(F. G. Thompson, 1968) Blue Spring hydrobe Blue SpringAphaostracon chalarogyrum (F. G. Thompson, 1968) freemouth hydrobe Magnesia Springs in Alachua CountyAphaostracon hypohyalinum(F. G. Thompson, 1968) (Syn: A. hypohyalina) Suwannee hydrobe Suwannee, Santa Fe, and Waccasassa riversAphaostracon monas (Pilsbry, 1899) Wekiwa hydrobe Wekiwa SpringsAphaostracon pachynotum (F. G. Thompson, 1968)(Syn: A. pachynotum)thick-shelled hydrobeupper half of St. Johns RiverAphaostracon pycnum(F. G. Thompson, 1968) dense hydrobe Alexander Springs,Silver Glen SpringsAphaostracon rhadinum (F. G. Thompson, 1968) slough hydrobetributaries of lower St. Johns RiverAphaostracon theiocrenetum(F. G. Thompson, 1968)(Syn: A. theiocrenetum)Clifton Spring hydrobe Clifton SpringsAphaostracon xynoelictum (F. G. Thompson, 1968) Fenney Spring hydrobeFenney Spring, in Sumter County
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