吉林省敦化市额穆乡蜊蛄体内卫氏并殖吸虫囊蚴的分布与蜊蛄性别和季节无关.除肠管外蝲蛄各部位均可寄生囊蚴,其中以步足和胸部最多,分别占32.06％,31.42％,其次为螯肢(16.61％)、腹部(8.27％)、鳃(4.23％)、颚足(3.30％)、肝(1.73％)、触角(1.43％)、眼(0.62％)、生殖器(0.32％),平均感染度为498个,8,9月份明显高,蝲蛄越大感染度越高,可见蝲蛄体内卫氏并殖吸虫囊蚴感染度与蝲蛄的大小和季节密切相关. The distribution of Paragonimus westermani metacercariae in the population of the clam in Hemu Township, Dunhua City, Jilin Province, was not related to the sex and seasonality of clam, except that the parasitized metacercariae could be parasitized in all parts except the intestine, of which gait and chest were the most 32.06% and 31.42% respectively, followed by chelified limbs (16.61%), abdomen (8.27%), gills (4.23%), palatal foot (3.30%), liver (1.73% ), Genital (0.32%), the average infection was 498, 8, 9 months was significantly higher, the greater the greater the greater the greater the degree of infection, we can see the body of Paragonimus westermani metacercariae infection and the size and The season is closely related.