Terrestrial molluscs of Aruba, Bonaire and Curaçao in the Dutch Caribbean: an updated checklist and guide to identification

A review is given of the terrestrial malacofauna of Aruba, Bonaire, and Curaçao in the Dutch Caribbean. The most recent reviews of these islands were given in 1924 by Baker and in 1940 by Wagenaar Hummelinck. Wagenaar Hummelinck accepted fewer species and subspecies than Baker, without giving any arguments. Baker did give a detailed account making it possible to recognize his taxa in the field. Genetic research by Harasewych in 2015 supported Baker’s views with regard to the genus Cerion. Figures are provided for most taxa so each can be identified. Helicina dysoni L. Pfeiffer, 1849, Leptinaria lamellata (Potiez & Michaud, 1835), and Polygyra cereolus (Megerle von Mühlfeldt, 1816) are reported here for the first time, Guppya molengraaffi Baker, 1924 has been rediscovered.