Hovestadt, A.

Summary - The non-marine malacofauna of St. Martin is critically revised. Forty-seven terrestrial taxa and 7 freshwater taxa are accepted as being part of the non-marine malacofauna. The fauna is compared with the fauna of the much less known islands of Saint-Barthélemy and Anguilla. Pleurodonte guadeloupensis martinensis is described as a new subspecies, endemic for St. Martin.

Key words - Gastropoda: Annulariidae,  Pleurodonte guadeloupensis martinensis subspec. nov., checklist, Anguilla, Saint-Barthélemy, St. Martin, Caribbean.

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.

Summary.
 
Based on the literature and own observations a checklist is provided with 27 species of land- and freshwater snails that may occur on Saba, a Dutch island in the Lesser Antilles. Nine species are recorded for the first time from Saba.