Echinostoma paraulum Adults normally found in small intestine of ducks and pigeons. The identity of the second intermediate is not certain, but is probably either a fish or another snail. Echinostoma hortense Adults normally found in dogs, rats, weasels and martens in Manchuria, Korea and Japan. Infection is due to ingestion of metacercaria in uncooked frogs and fish such as the loach. Echinostoma lindoense Adults normally found in ducks and other water fowl in Indonesia, particularly the central Celebes.
Infection is by eating the fresh water mussels that act as intermediate hosts.
I am not medically qualified, and do not have the time to answer such enquiries.