Maxim V. Vinarski is a malacologist based in St.-Petersburg, Russia. Currently, he is Professor, Head of Laboratory of Macroecology & Biogeography of Invertebrates, at St. Petersburg State University. His research focuses on the taxonomy, phylogeny, ecology, and biogeography of freshwater Mollusca. He authored more than 100 peer-reviewed articles and five monographs, many of which are devoted to the study of Lymnaeidae. Antonio A. Vázquez is Associate Professor and the Head of the Laboratory of Malacology at the Institute of Tropical Medicine in Havana, Cuba, and a researcher at MIVEGEC, University of Montpellier, CNRS, IRD, Montpellier, France. He has carried out several studies on the ecology, evolution, taxonomy, conservation and parasitology of freshwater snails. He has contributed to over 50 peer-reviewed scientific papers and book chapters related to malacology. Most of his field and experimental studies focus on the Lymnaeidae in countries from Latin America and Europe.