From 25-27 August 2017, the Netherlands Malacological Society (NMV) and the Mollusc Study group Limburg (MSL) jointly organised an excursion to three valleys in Mid and South Limburg: those of the rivulet Kingbeek and the small rivers Geleenbeek and Swalm. In all, 42 (perhaps even 43) species of land snails and 35 species of freshwater molluscs were recorded.

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Spirula

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Nederlandse Malacologische Vereniging

G. Majoor
S. Keulen
S. van Leeuwen. (2018). Verslag van de NMV excursie naar Midden- en Zuid-Limburg, 25-27 augustus 2017. Spirula, 414, 33–38.