摘要： Six species of lung flukes (Paragonimus westermani Kerbert, 1878; P. szechuanensisChung T'sao 1962; P. ohirai Miyazaki, 1939; P. iloktsuensis Chen, 1940; Pagumogo-nimus skrjabini Chen, 1959 and P. macrorchis Chen, 1962) were studied with the clusteranalysis by computer, basing on the seven characters commonly used in classical