Stenotrema deceptum, also known as the Monte Sano slitmouth, is a rare, range-restricted species of pulmonate land snail in the family Polygyridae.

The Monte Sano slitmouth is most visually similar to Stenotrema hirsutum, and was originally believed to be a subspecies.

However, the Monte Sano slitmouth is smaller, its shell is more rounded along the top, and it possesses a broader lip with a wider, hooked parietal tooth that curves into the aperture.

[1] The Monte Sano slitmouth is endemic to the southeastern United States, where it can be found in southern Tennessee and northern Alabama.

It is listed as vulnerable due to its rarity and a lack of knowledge surrounding the species' true range and population size.