本文报告了来自四川六个地区的斯氏并殖吸虫囊蚴、成虫及虫卵的比较研究和成虫体棘的扫描电镜观察。结果发现它具有共同而稳定的基本形态特征,但在大小上相互间又有一定差异。电镜观察所见这6个地区的成虫体棘,仍以单生型为主,棘上的纵向线纹,实为突出于表面的嵴或皱语,并无分裂成群生棘的迹象。 In this paper, the comparative studies on metacercariae, adult and oviposition of Paragonimus spp. From the six regions of Sichuan Province and the scanning electron microscopy of adult spines were reported. The results showed that it has a common and stable basic morphological characteristics, but in size there are some differences between each other. Electron microscopy showed that the adult spines in these six areas were still dominated by solitary type. The vertical lines on the spines were actually the ridges or wrinkles protruding from the surface, showing no signs of splitting into clusters of spines.