scanning electron microscopy of newly excysted metacercariae of paragonimus westermani-like, nakhon nayok, thailand. | scanning electron microscope (sem) observation of surface structure was done on newly excysted metacercariae of paragonimus westermani-like (nakhon nayok, thailand). the surface of the body was covered with numerous single-pointed tegumentary spines, large dome-shaped papillae, small one with a pit, and small one with a smooth surface were situated around the suckers. there were 27 to 30 of the small dome-shaped papillae with a pit around the oral sucker and 10 to 13 of the small ones with a smo ... | 1998 | 10772558 |