See Metagonimus species.

An egg of Metagonimus yokogawai

Egg of Metagonimus yokogawai, unstained. 29 um x 18 um.

Egg of Metagonimus sp. from human.

Egg of Metagonimus sp. from human.

Metacercariae of Metagonimus yokogawai collected from sweetfish. x400.

Adult worm of Metagonimus yokogawai

Metagonimus yokogawai, adult worm. Acetocarmine stained.

Metagonimus yokogawai recovered from a hamster which was experimentally infected with metacercariae. Semichon's acetocarmine stain.

Semisulcospira libertina : first intermediate host of Metagonimus yokogawai

Sweetfish, Plecoglossus altivelis. The second intermediate host of Metagonimus yokogawai.

Plecoglossus altivelis, sweetfish.

Tribolodon hakonensis, sea rundace.

Seomjin-gang (river) in Hadong-gun, Kyungsangnam-do. This river is abundant in sweetfish, Plecoglossus altivelis, in summer.

Metagonimus yokogawai parasitizes in the small intestine of a dog.

Metagonimus yokogawai inserting anterior part into intervillous crypt, in small intestine of experimental cat. H & E stain. (Kang et al. 1983. Korean J Parasitol 21:58-73).