DorcasiidaeDorcasiidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Acavoidea.The family Dorcasiidae has no subfamilies.DistributionFound in southern Africa.GeneraGenera within the family Dorcasiidae include:Dorcasia Gray, 1838 - the type genus of the family DorcasiidaeTrigonephrus Pilsbry, 1905Tulbaghinia Melvill & Ponsonby, 1898