Prosthogonimus ovatus
Prosthogonimus ovatus is a species of a trematodes, or fluke worms, in the family Prosthogonimidae.
Life cycle
The first intermediate hosts of Prosthogonimus ovatus include freshwater snails:Anisus spirorbisBithynia leachiiBithynia tentaculataPlanorbarius corneusThe definitive host lives in the oviducts of corn crake Crex crex.