Xolotrema
Xolotrema is a genus of air-breathing land snails, terrestrial pulmonate gastropod molluscs in the family Polygyridae.
Shell description
Pilsbry characterized the shell of Xolotrema thus:"Triodopses, in which the inner margin of the basal lip has a long bladelike lamella, terminating at a notch where it joins the outer arc of the lip; the embryonic whorls are covered with close retractive radial striae."