Helicometra

Opecoelidae
Hamacreadium cribbi
Scientific classification
Kingdom:	Animalia
Phylum:	Platyhelminthes
Class:	Trematoda
Subclass:	Digenea
Order:	Plagiorchiida
Suborder:	Opecoelata
Family:	Opecoelidae Ozaki, 1925

Opecoelidae is a family of flatworm. It is the largest digenean family with over 90 genera and nearly 900 species, almost solely found in marine and freshwater teleost fishes. It is now considered to belong in the superfamily Opecoeloidea Ozaki, 1925 or the Brachycladioidea Odhner, 1905.

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