In the last two years, as part of the ’ANM-project’ (Atlasproject Nederlandse Mollusken), the occurrence of Vertigo moulinsiana (Dupuy, 1849) in the Netherlands (province of Zuid Limburg) was investigated (see article of first author on page 2). This article deals mainly with measures for protection and maintenance of biotope (small marshes), and species-diversity. As result of several actions, three of the known (remaining) populations in the 'Geleenvalley-area' are now protected to a limited extent. This increases the probability that this Redbook species can persist in the Netherlands, despite the fact that it is highly specialised and rare on both national and international scales. Adressen van de schrijvers: S.M.A. Keulen R.H. de Bruyne (ANM Regio-coördinator Zuid-Nederland) (Landelijk coördinator ANM) Mesweg 10 p/a Zoölogisch Museum Amsterdam, afd. malacologie 6336 VT Hulsberg Postbus 94766 045 405 3602 1090 GT Amsterdam Tel. 020 525 6902

Correspondentieblad NMV

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Nederlandse Malacologische Vereniging

S.M.A. Keulen, & R.H. de Bruyne. (1998). Het huidige voorkomen en de biotoop-bescherming van de Zegge-korfslak Vertigo moulinsiana (Dupuy, 1849) in Nederland [Verslagen van onderzoek en excursies in het kader van het Atlasproject Nederlandse mollusken (3)]. Correspondentieblad NMV, 300(1), 19–24.