The land Mollusca of Dominica (Lesser Antilles), with notes on some enigmatic or rare species

An overview of the land-snail fauna of the Lesser Antillean island of Dominica is given, based on data from literature and four recent surveys. There are 42 taxa listed, of which the following species are recorded for the first time from the island: Allopeas gracile (Hutt on, 1834), A. micra (d’Orbigny, 1835), Beckianum beckianum (L. Pfeiffer, 1846), Bulimulus diaphanus fraterculus (Potiez & Michaud, 1835), Deroceras laeve (Müller, 1774), Sarasinula marginata (Semper, 1885), Streptostele musaecola (Morelet, 1860) and Veronicella sloanii (Cuvier, 1817). The enigmatic Bulimulus stenogyroides Guppy, 1868 is now placed in the genus Naesiotus Albers, 1850. Helicina epistilia Guppy, 1868 is now considered a synonym of H. platychila (Megerle von Mühlfeld, 1824); H. goldfussi Boett ger, 1887 and H. rhodostoma inermis A.J. Wagner, 1910 are now put into the synonymy of H. rhodostoma Gray, 1824. Amphicyclotulus mineri Bartsch, 1942 is now considered a synonym of A. amethystinus (Guppy, 1868). Cycloblandia Bartsch, 1942 is treated as a junior subjective synonym of Amphicyclotulus Kobelt, 1912. Nine species, previously thought to occur on Dominica, are now removed from the faunal list of the island, due to inaccuracies of provenance of specimens or misidentifications. Finally, remarks are given on the distribution of species collected during the surveys.