Opisthorchiidae
Opisthorchiidae is a family of digenean trematodes. Opisthorchiidae have cosmopolitan distribution.
The most medically important species in the family Opisthorchiidae are Clonorchis sinensis, Opisthorchis viverrini, and Opisthorchis felineus, that are causes of the disease clonorchiasis.
Some species are parasites of economically important fish, e.g. Clarias gariepinus.
Subfamilies
Thirteen subfamilies are in the family Opisthorchiidae: but their number is inconsistent:- Allogomtiotrematinae - Gupta, 1955; Yamaguti, 1958 - two genera
- Aphallinae - Yamaguti, 1958 - one genus
- Delphinicolinae - Yamaguti, 1933 - one genus
- Diasiellinae - Yamaguti, 1958 - one genus
- Metorchiinae - Luhe, 1909 - four genera
- Oesophagicolinae - Yamaguti, 1933 - one genus
- Opisthorchiinae - Yamaguti, 1899 - 14 genera
- Pachytrematinae - Railliet, 1919; Ejsmont, 1931 - one genus
- Plotnikoviinae - Skrjabin, 1945; Skrjabin et Petrov, 1950 - one genus
- Pseudamphimerinae - Skrjabin et Petrov, 1950 - three genera
- Pseudamphistominae - Yamaguti, 1958 - two genera
- Ratziinae - Dollfus, 1929; Price, 1940 - one genus
- Tubangorchiinae - Yamaguti, 1958 - one genus