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目的:调查永嘉县肺吸虫第二中间宿主淡水溪蟹的种类与分布情况。方法:通过实地考察,捕捉分布于永嘉县境内的淡水溪蟹,并进行形态学鉴定,以期发现新蟹种。结果:分类显示目前永嘉县淡水溪蟹类主要为浙江华溪蟹、长江华溪蟹、南海溪蟹和博特溪蟹,其中南海溪蟹和博特溪蟹为新发现蟹种。结论:永嘉县存在淡水溪蟹新种属,了解溪蟹及其囊蚴感染率与变迁,有助于肺吸虫生活史的研究,能为防治肺吸虫病提供可靠的病原学依据。
Objective: To investigate the species and distribution of freshwater crab in the second intermediate host of Paragonimus in Yongjia County. Methods: Through field investigation, freshwater crabs distributed in Yongjia County were captured and morphologically identified in order to discover new crab species. Results: The classification shows that the main freshwater crabs in Yongjia County are Zhejiang Huaxi Crab, Yangtze River Huaxi Crab, Nanhai Creek Crab and Bot Creek crab, among which Nanhai crab and Bot Creek crab are the newly discovered crab species. CONCLUSION: There is a new species of crab in Yongjia County. Understanding the infection rates and changes of crab and its metacercariae may help to study the life history of paragonimiasis and provide a reliable etiologic basis for the prevention and treatment of paragonimiasis.