Priodiscus is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Streptaxidae. Distribution The genus Priodiscus is endemic to the Seychelles. Species There are three species within the genus Priodiscus and they include: Priodiscus costatus Priodiscus serratus (Adams, 1868) Priodiscus spinatus References Further reading Gerlach J. (1995). "The taxonomy and affinities of the genus Priodiscus (Mollusca: Gastropoda: Streptaxidae)". Journal of Conchology, London 35: 357-368. Streptaxidae