Cryptic diversity and population structure at small scales: the freshwater snail Ancylus (Planorbidae, Pulmonata) in the Montseny mountain rangeJan N. Macher, Martina Weiss, Arne J. Beermann and Florian LeeseAnn. Limnol. - Int. J. Lim., 52 (2016) 387-399DOI: https://doi.org/10.1051/limn/2016026