Aphaostracon
Aphaostracon is a genus of very small or minute freshwater snails in the family Cochliopidae that have an operculum.[1]
| Aphaostracon | |
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| Genus: | Aphaostracon F. G. Thompson, 1968 |
| Type species | |
| *Aphaostracon rhadinus F. G. Thompson, 1968 | |
Aphaostracon species are endemic to restricted areas in Florida, often to a single spring or spring run.[2]
Species
This genus includes the following species:[3][4] }
| Species | Common Name | Range |
|---|---|---|
| Aphaostracon asthenes (F. G. Thompson, 1968) |
Blue Spring hydrobe | Blue Spring[2] |
| Aphaostracon chalarogyrum (F. G. Thompson, 1968) |
freemouth hydrobe | Magnesia Springs in (Alachua County)[2] |
| Aphaostracon hypohyalinum (F. G. Thompson, 1968) (Syn: A. hypohyalina) |
Suwannee hydrobe | Suwannee, Santa Fe, and Waccasassa rivers[2] |
| Aphaostracon monas (Pilsbry, 1899) |
Wekiwa hydrobe | Wekiwa Springs |
| Aphaostracon pachynotum (F. G. Thompson, 1968) (Syn: A. pachynotum) |
thick-shelled hydrobe | upper half of St. Johns River[5] |
| Aphaostracon pycnum (F. G. Thompson, 1968) |
dense hydrobe | Alexander Springs,[2] Silver Glen Springs[6] |
| Aphaostracon rhadinum (F. G. Thompson, 1968) |
tributaries of lower St. Johns River[2] | |
| Aphaostracon theiocrenetum (F. G. Thompson, 1968) (Syn: A. theiocrenetum) |
Clifton Spring hydrobe | Clifton Springs[2] |
| Aphaostracon xynoelictum (F. G. Thompson, 1968) |
Fenney Spring hydrobe | Fenney 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.[7]
References
- 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
- Burgess, George H.; Franz, Richard (1978). "Zoogeography of the Aquatic Fauna of the St. Johns River System with Comments on Adjacent Peninsular Faunas". The American Midland Naturalist. 100 (1): 160–170. doi:10.2307/2424786. ISSN 0003-0031. JSTOR 2424786.
- Group, U. S. Geological Survey Karst Interest (2001). U.S. Geological Survey Karst Interest Group Proceedings, St. Petersburg, Florida, February 13-16, 2001. U.S. Department of the Interior, U.S. Geological Survey. p. 81.
- "Molluscabase - Aphaostracon F. G. Thompson, 1968". molluscabase.org. Retrieved 2023-06-16.
- Johnson, Richard I. (June 29, 1973). "Distribution of Hydrobiidae, a Family of Fresh and Brackish Water Gastropods, in Peninsular Florida". Occasional Papers on Mollusks (Harvard University). 3 (46): 301 – via Smithsonian Institution Biodiversity Heritage Library.
- Mattson, Robert A. (2011). "Chapter 11. Benthic Macroinvertebrates, Appendix 11. A Description of Benthic Communities in the St Johns River Mainstream" (PDF). St Johns River Water Management District. Retrieved June 11, 2023.
- Shelton, Douglas N. (September 2005). The Rare and Endemic Snails of Selected Springs Within the St. Johns River Water Management District (Report). St. Johns River Water Management District. pp. 5–6.
- Hershler R. & Thompson F.G. (1992) A review of the aquatic gastropod subfamily Cochliopinae (Prosobranchia: Hydrobiidae). Malacological Review suppl. 5: 1-140.
Further reading
- Hershler, Robert; Holsinger, Joen R. (1990). "Zoogeography of North American hydrobiid cavesnails" (PDF). Stygologia. 5 (1): 5–16 – via Smithsonian Institution Repository.
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