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Aphaostracon pycnum
Conservation status
Vulnerable  (IUCN 3.1)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Littorinimorpha
Family:	Cochliopidae
Genus:	Aphaostracon
Species:	A. pycnum
Binomial name
Aphaostracon pycnum F.G. Thompson, 1968
Synonyms
A. pycnus F.G. Thompson, 1968

The dense hydrobe, scientific name Aphaostracon pycnum, is a species of small freshwater snails with a gill and an operculum, aquatic gastropod mollusks in the family Cochliopidae.

Distribution

This species is endemic to Alexander Springs and Silver Glen Springs in Florida.

References

1. Cordeiro, J.; Perez, K. (2012). "Aphaostracon pycnus". IUCN Red List of Threatened Species. 2012: e.T1858A1780266. doi:10.2305/IUCN.UK.2012-1.RLTS.T1858A1780266.en. Retrieved 14 November 2021.
2. "Molluscabase - Aphaostracon F. G. Thompson, 1968". molluscabase.org. Retrieved 2023-06-16.
3. Bouchet, P. (2014). Aphaostracon pycnus F. G. Thompson, 1968. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=729796 on 2014-11-16
4. 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.
5. 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.

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

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• IUCN Red List vulnerable species
• Molluscs of the United States
• Aphaostracon
• Gastropods described in 1968
• Hypsogastropoda stubs