Pointed bladder snail
| Pointed bladder snail | ||||||||||||
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Physella acuta |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Physella acuta | ||||||||||||
| ( Draparnaud , 1805) |
The tip bladder snail ( Physella acuta ) is a freshwater lung snail from the family of bladder snails (Physidae).
features
The case is eight to 12 mm high and five to seven mm wide. The left-hand winding case has six whorls, the apex is pointed. The thin but firm shell is yellowish horn-colored. The right-hand mantle extension engages over the housing. Pointed bladder snails are hermaphrodites .
Habitat and Distribution
The apex bladder snail colonizes flowing and still waters, it does not place any special demands on the water quality. Their natural habitat is southern Europe and Africa. It was introduced to North America, probably through the aquatic plant trade. It is the most common freshwater snail in many regions of Spain .
Due to exposure, it is also widespread in Germany. Physella acuta is an indicator organism for water quality class III, heavily polluted.
swell
- Karsten Grabow: Color Atlas Freshwater Fauna Invertebrates . Eugen Ulmer, Stuttgart (Hohenheim) 2000, ISBN 3-8001-3145-5 .
Individual evidence
- ↑ Nonindigenous Aquatic Species at nas.er.usgs.gov (English, accessed October 2, 2009)
- ↑ AnimalBase: Species summary for Physella acuta at www.animalbase.uni-goettingen.de (English, accessed on June 5, 2010)
- ↑ Pointed bladder snail at www.neozoa.de (accessed on October 2, 2009)
- ↑ indicator organisms at www.ig-dreisam.de (accessed on October 2, 2009)
Web links
- Pointed bladder snail at www.mollbase.de (accessed on October 2, 2009)
- Pointed bladder snail from www.heimbiotop.de (accessed on October 2, 2009)
- Pointed bladder snail at www.aquarium-kosmos.de (accessed on October 2, 2009)
- Haitia acuta inthe IUCN 2013 Red List of Threatened Species . Posted by: Van Damme, D., Ghamizi, M., Seddon, M., Kristensen, TK, Stensgaard, A.-S., Budha, PB & Dutta, J., 2008. Retrieved December 13, 2013.