The quadrate pebblesnail, scientific name Somatogyrus quadratus, is a species of small freshwater snail with a gill and an operculum, an aquatic gastropod mollusc in the family Lithoglyphidae. This species is endemic to Alabama in the United States. Its natural habitat is rivers. This species is possibly extinct because there is no recent survey information. It is known to have had a very restricted distribution and there had been a habitat disturbance.[1] This species was endemic to the Tennessee River system and was known to exist from Muscle Shoals and adjacent Shoal Creek, Lauderdale County, Alabama.[2] It has not been reported since the river was impounded.[3] Based on the fact that the species has not been observed since the dams were constructed, it is widely believed that that change in habitat possibly caused the species's extinction.
| Quadrate pebblesnail | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Order: | Neotaenioglossa |
| Family: | Lithoglyphidae |
| Genus: | Somatogyrus |
| Species: | S. quadratus
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| Binomial name | |
| Somatogyrus quadratus Walker, 1906
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References
edit- ^ a b Mollusc Specialist Group (2000). "Somatogyrus quadratus". IUCN Red List of Threatened Species. 2000: e.T20366A9192125. doi:10.2305/IUCN.UK.2000.RLTS.T20366A9192125.en. Retrieved 11 November 2021.
- ^ a b "Somatogyrus quadratus". NatureServe Explorer An online encyclopedia of life. 7.1. NatureServe. Retrieved 22 October 2023.
- ^ Anonymous (2014-07-16). "Pebblesnails - Family Hydrobiidae". Outdoor Alabama. Retrieved 2017-03-01.
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