Pleurodonte nigrescensPleurodonte nigrescens is a species of tropical air-breathing land snail, a pulmonate gastropod mollusk in the family Pleurodontidae.DistributionThe distribution of Pleurodonte nigrescens includes: Guadeloupe DominicaDescriptionPleurodonte nigrescens differs from all other Dominican Pleurodonte species by the characteristic parietal tooth opposite the basal teeth in the aperture. The shell can be chesnut-brown with fine axial lines or purple-black with a purple aperture.EcologyPleurodonte nigrescens lives in damp leaf litter on the forest floor. This species appears to prefer relatively undisturbed habitats, especially in rain forest at higher altitudes in Dominica.