Stenotrema labrosum, also known as the Ozark slitmouth, is a species of pulmonate land snail in the family Polygridae.
The base of the shell can range from a yellowish-cinnamon to a dark brown, and it is covered with the fine, thin hairs typical of species in the Stenotrema genus.
The aperture is narrow and a linguiform tooth extends across the entirety of the parietal wall.
[1][2] The Ozark slitmouth is endemic to the United States, where it has been found in Iowa, Missouri, Arkansas, Oklahoma, and Louisiana.
[3] The species is most commonly found in leaf litter or on or under rocks and logs along moist wooded hillsides and ravines.