Hydrobia acuta neglecta explained

Hydrobia acuta neglecta is a European subspecies of small brackish water snail with a gill and an operculum, an aquatic gastropod mollusc in the family Hydrobiidae.^[1]

Distribution

This species which has a distribution type: oceanic temperate occurs on the coasts of the North Sea, in countries and islands including:

• Iceland
• Denmark
• Sweden
• Great Britain
• Ireland
• France

Ecology

Hydrobia acuta neglecta occurs in coastal lagoons where incoming freshwater dilutes sea water. The preferred salinity range is 10-24 ‰.^[2]

Status

The status of this taxon is uncertain. Hydrobia neglecta is treated as a full species in Fauna Europaea,^[3] but in 1995 it had been suggested that H. neglecta is a synonym of the Mediterranean Hydrobia acuta (Draparnaud).^[4] Then a neglecta colony in northern France was shown to be acuta.^[5] In 2000 a molecular study concluded that north-west European populations were not specifically distinct from the Mediterranean Hydrobia acuta and designated them subspecies neglecta Muus.^[6]

External links

• AnimalBase info and images at: http://www.animalbase.uni-goettingen.de/zooweb/servlet/AnimalBase/home/species?id=3354
• Hydrobia acuta neglecta Species account and photograph at Mollusc Ireland.
  • Conchological Society of Great Britain and Ireland Identification (Differences from the very similar species Ventrosia ventrosa (Montagu, 1803))

Notes and References

1. Gofas, S. (2010). Hydrobia acuta neglecta Muus, 1963. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=465551 on 2010-05-05
2. Fretter, V. & Graham, A. (1978). "The prosobranch molluscs of Britain and Denmark. Part 3 – Neritacea, Viviparacea, Valvatacea, terrestrial and freshwater Littorinacea and Rissoacea". Journal of Molluscan Studies. Suppl. 5: 1-152.
3. Bank, R., von Proschwitz, T. & Falkner, G. (2006). Unpublished manuscript of the mollusca section of the Fauna Europaea web-site (https://fauna-eu.org).
4. Giusti, F., Manganelli, G. & Schembri, P. J. (1995). The Non-Marine Molluscs of the Maltese Islands. Monografie XV, Museo Regionale di Scienze Naturali, Torino.
5. Hoeksema, D. F. (1998). "Note on the occurrence of Hydrobia acuta (Draparnaud, 1805) (Gastropoda, Prosobranchia: Hydrobiidae) in western Europe, with special reference to a record from S. Brittany, France". Basteria. 61: 101-113
6. Wilke, T., Rolán, E. & Davis, G. M. (2000). "The mudsnail Genus Hydrobia s.s. in the northern Atlantic and western Mediterranean: a phylogenetic analysis". Marine Biology. 137: 827-833.