The first record of Vertigo geyeri Lindholm, 1925 (Gastropoda: Pulmonata: Vertiginidae) in North-Western Poland

A new isolated locality of Vertigo geyeri Lindholm, a rare and endangered species, was discovered in the nature reserve Bukowskie Bagno, West Pomerania. Among other species, it is accompanied by Vertigo angustior Jeffreys. The habitat is a rich, open topogenous moss fen with some sedges, on a gyttja substratum. The locality is relatively young, of not more than 150 years, and may have been colonised from some nearby populations. The record fills the gap between the north-easternmost German localities and the eastern group of records in Poland. Key woRds: endangered species, terrestrial snails, Habitats Directive