Stenotrema edgarianum, also known as the Sequatchie slitmouth, is a rare, range-restricted species of pulmonate land snail in the family Polygyridae.
Physical appearance
The Sequatchie slitmouth's shell is reddish-brown in color, irregularly striated, flat along the top, and convex below. The lip is thick with a narrow opening and a defined parietal tooth. The shell typically has 5 whorls.Lea, I. (1841). On fresh water and land shells (continuation) [fifty-seven new species]. Proceedings of the American Philosophical Society. 2(17): 30-34 [7 May 1841].
Ecology
The Sequatchie slitmouth is endemic to the Appalachian Mountains, specifically the Cumberland Plateau, where it can be found in Marion, Sequatchie, Bledsoe, and Cumberland Counties in southeastern Tennessee.Hubricht, L. 1973. The land snails of Tennessee. Sterkiana, 49: 11-17. Due to its rarity, the species is listed as imperiled globally and at the Tennessee state level.
This species is found on logs or in leaf litter along wooded hillsides.Dourson, D.C. 2010. Kentucky's land snails and their ecological communities. Goatslug Publications, Bakersville, NC. 298 pp. They are rarely found in large numbers.Hubricht, Leslie (1985). The distributions of the native land mollusks of the Eastern United States. Field Museum of Natural History. 40.
References