Anguispira alabama
| Anguispira alabama | |
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| Species: | A. alabama
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| Binomial name | |
| Anguispira alabama (G.H. Clapp, 1920)
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Anguispira cumberlandiana alabama (Pilsbry, 1948) | |
Anguispira alabama, also known as the Alabama tigersnail or Alabama disc, is a rare, range-restricted species of pulmonate land snail in the family Discidae.
The Alabama tigersnail possesses a pale, convex shell with radiating brown stripes and a white, heavily-ribbed carina. Its stripes are noted as being darker than those of its close relative, Anguispira cumberlandiana.[1] The shell is typically 21.75-21.25 mm in diameter. It is pinched and thin, which allows the snail to burrow into cracks in limestone cliffs and boulders to presumably hibernate and seek shelter from the elements.[2]
The Alabama tigersnail is found in eight counties in Alabama and Tennessee along the Cumberland Plateau.[3][4] Like Anguispira cumberlandiana and Anguispira picta, it is a limestone specialist.[2] Though studies on this species are limited, Alabama tigersnails have been mainly found on or around limestone cliffs, talus, and boulders in moist, dense, hardwood-dominant forests.
Due to its rarity and the difficulty of locating new populations, the Alabama tigersnail is listed as vulnerable in Alabama and Tennessee.[5]
References
- ^ Pilsbry, H.A. "Land Mollusca of North America North of Mexico.". The Quarterly Review of Biology. 23 (4): 357–357. doi:10.1086/396659. ISSN 0033-5770.
- ^ a b Haskell, David G.; Pan, Jia W. (2013-02-20). "Phylogenetic analysis of threatened and range-restricted limestone specialists in the land snail genus Anguispira". Conservation Genetics. 14 (3): 671–682. doi:10.1007/s10592-013-0460-4. ISSN 1566-0621.
- ^ Clench, William James (1965). "A new species of Clappia from Alabama". The Nautilus. 79 (1): 33–34. doi:10.5962/bhl.part.2074. ISSN 0028-1344.
- ^ Hubricht, Leslie (1985). The distributions of the native land mollusks of the Eastern United States. Field Museum of Natural History.
- ^ "Anguispira alabama". NatureServe Explorer.
External links
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