Morphological data of three wild geographic populations of Chinese soft shelled turtle Trionyx sinensis collected from Yangtze estuary,Tai Lake and Hongze Lake in China were analyzed.Sixteen proportions of morphometric traits were measured from Chinese soft shelled turtle and the degree of morphological variation among populations was calculated using four multivariate analysis.The cluster analysis revealed that the morphometric characters of the Tai Lake population were more similar to those of the populat...