扁囊并殖吸虫(Parago-nimus asymmetricus)先后发现于广东(陈心陶,1977)和福建(林宇光等,1980),本省尚无报道。今年9月我们从歙县坑口大队所采集的553只长江华溪蟹体内检获的800只并殖吸虫囊蚴中发现8只扁囊并殖囊蚴,现将此种囊蚴的形态特征简述如下:(並附显微摄影图片于后) 8只囊蚴体形均不对称,呈蛲虫卵状(如图1)、肾形(如图2)、(图3)、鸡蛋形(图4)及“D”字形等多种形状。其大小为353～430×246～312微米,平均为393× Paragonimus paraquat (Parago-nimus asymmetricus) has been found in Guangdong (Chen Xintao, 1977) and Fujian (Lin Yuguang et al., 1980), the province has not been reported. In September this year, we collected eighty-seven clavicles and climacteric cysts from 800 clonorchidic metacercariae collected from 553 Yangtze River Huaxi crabs collected from the Hang Hau Brigade, Yixian County. The morphological characteristics of this metacercariae As follows: (with photographic pictures in the post) 8 metacercaria body shape are asymmetric, was a pinworm ovum (Figure 1), kidney shaped (Figure 2), (Figure 3), egg-shaped ) And “D” shape and other shapes. Its size is 353 ~ 430 × 246 ~ 312 microns, with an average of 393 ×