Tulotoma
Tulotoma magnifica, common name the Alabama live-bearing snail or  tulotoma, is an endangered species of large freshwater snail, an aquatic gastropod mollusk in the family Viviparidae. Taxonomy 
Tulotoma is a monotypic genus, in other words, this is the only species in the genus. Distribution
This species is endemic to the Coosa River-Alabama River system in Alabama, United States. Description 
The shell of this species is large, solid, thick and imperforate. The shape of the shell is obtusely conic. The spire is elevated. The whorls are flattened, nodulous and carinated. The peristome is thin and continuous. The shell can grow fairly large, to more than 25 mm in height. The operculum is concentric, subtriangular, with the inner margin reflected and forming an elevated marginal fold. It is a species with a moderate foot, not produced beyond the snout. The snout is small. The radula is multicuspid. References

External links 

 Tulotoma magnifica at U.S. Fish & Wildlife Service webpage
 Raines B. (25 July 2011). "A good news snail story: This Alabama snail's recovering from brink of extinction". blog.al.com
 Paper on the rediscovery of this species

Viviparidae
Taxa named by Samuel Stehman Haldeman
Taxonomy articles created by Polbot