 Her phylogenetic analysis demonstrates the existence of three deep clades of Lymnaeidae representing the main geographic origin of species (America, Eurasia and the Indo-Pacific region).It demonstrates that the nomenclature of most genera in the Lymnaeidae does not reflect evolutionary relationships.A cladogram based on sequences of 16S, internal transcribed spacers ITS1 and ITS2 genes showing phylogenic relations of Lymnaeidae by Correa et al.