The 2nd generation redia of Echinoparyphium recurvatum isolated from an experimental lymnaeid snail, Radix auricularia coreana.

Cercaria of E. recurvatum isolated from an experimental lymnaeid snail, R. auricularia coreana.

Metacercaria of E. recurvatum isolated from an experimental lymnaeid snail, R. auricularia coreana.

E. recurvatum recovered from an experimentally infected duck. Semichon's acetocarmine stained.

E. recurvatum recovered from an experimentally infected duck. Semichon's acetocarmine stained.

Schematic drawing of E. recurvatum.

E. recurvatum recovered from a rat. Semichon's acetocarmine stained.

Head crown and collar spines of E. recurvatum.