NIVIVENTERTREMA YUNNANENSIS GEN-N, SP-N (LECITHODENDRIIDAE, PLEUROGENETINAE), FROM NIVIVENTER CREMORIVENTER (MURIDAE) FROM YUNNAN PROVINCE OF THE PEOPLES-REPUBLIC-OF-CHINA

During a study of helminths of mammals from Yunnan Province, southern China, 2 of 6 specimens of Niviventer cremoriventer (Muridae) were infected with a total of 42 specimens of an undescribed species of Lecithodendriidae (Pleurogenetinae) representing a new genus. Niviventertrema yunnanensis gen. n., sp. n., is most similar to Indopleurogenes orientalis (Pleurogenetinae) from Rana cyanophlyctis but differs in having an esophagus; ceca that are half long, ending immediately posterior to the testes; and a genital pore opening at level of pharynx; and in lacking a metraterm. Niviventertrema yunnanensis is described as the only known species in the new genus.