A study of phylogenetic relationships and zoogeography of genus Vallonia risso, 1826 from China (Pulmonata, Stylommatophora, Valloniidae)

The phylogeny of Chinese Vallonia has been investigated by cladistic methods using the Hennig 86 program (Version 1.5). Nineteen morphological characters were used in this analysis. The preferred parsimonious cladogram was calculated by the commands mh~(*); and bb~(*); with progressive weighting method. In the resulting phylogenetic reconstruction, sixteen Chinese Species of Vallonia were divided into two groups: a Western group and Eastern...