Agudo-Padr??n (2012) recently published a brief overview of the preferences of snail-eating snakes in southern Brazil, belonging to the snake family Dipsadidae.
Snails reported to be on the digest of these snails include Veronicellidae, Bulimulidae, as well as the invasive Bradybaena similaris.
Agudo-Pad??n, I., 2012. Brazilian snail-eating snakes (Reptilia, Serpentes, Dipsadidae) and their alimentary preferences by terrestrial mollusks (Gastropoda: Gymnophila & Pulmonata): an preliminary overview. – Biological Evidence 2: 2-3. Online available at http://bio.sophiapublisher.com/core/files/journals/40/articles/490/public/490-1615-1-PB.pdf