Anguispira alabama

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Anguispira alabama
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Stylommatophora
Family: Discidae
Genus: Anguispira
Species:
A. alabama
Binomial name
Anguispira alabama
(G.H. Clapp, 1920)
Synonyms

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 found in Alabama and Tennessee. Due to its rarity and the difficulty of locating new populations, the species is listed as vulnerable in both states. [1]

Contents

Physical appearance

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 . [2] 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. [3]

Ecology

The Alabama tigersnail is found in eight counties in Alabama and Tennessee along the Cumberland Plateau. [4] [5] Like Anguispira cumberlandiana and Anguispira picta, it is a limestone specialist. [3] 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. [1] [5]

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References

  1. 1 2 "Anguispira alabama". NatureServe Explorer.
  2. 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.
  3. 1 2 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.
  4. 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.
  5. 1 2 Hubricht, Leslie (1985). The distributions of the native land mollusks of the Eastern United States. Field Museum of Natural History.