Five new micro molluscs from the Tropical Western Atlantic (Gastropoda, Rissooidea, Barleeidae, Rissoidae)

Five new species of Rissooidea from the West Indies are described. The barleeid Lirobarleeia brami n. sp. from Dominica; Simulamerelina novemstriata n. sp., and Alvania debruynei n. sp., both from Cayman Brac; Alvania turkensis n. sp. from Grand Turk, and Alvania dejongi n. sp. from Mustique. All except Lirobarleeia brami n. sp. and Alvania dejongi n. sp. are known from their type localities only, the latter is known to occur more widespread in the tropical western Atlantic.