Genetic structure of the common terrestrial pulmonate snail, Cryptozona siamensis (Pfeiffer, 1856), in Thailand

► We investigate genetic structure of a cosmopolitan species, Cryptozona siamensis. ► The low genetic heterogeneity occurs across a macrogeographic scale. ► A high gene flow is associated with anthropochoric effects on dispersal. ► IBD in low geographic distance could be the consequence of local dynamics.