Amphimerus Barker, 1911 (identification resource)
Amphimerus anatis (Yamaguti, 1933) Gower, 1938 (redescription)
Amphimerus elongatus Gower, 1938 (redescription)
Amphimerus filiformis Ishii, 1935 accepted as Amphimerus anatis (Yamaguti, 1933) Gower, 1938 (redescription)
Amphimerus interruptus (Braun, 1901) Barker, 1911 (redescription)
Amphimerus lancea (Diesing, 1850) Barker, 1911 (redescription)
Amphimerus noverca (Braun, 1902) Barker, 1911 (redescription)
Amphimerus ovalis (Barker, 1911) Barker, 1911 (redescription)
Amphimerus pricei (Foster, 1939) Skrjabin & Petrov, 1950 (new combination reference)
Amphimerus pricei (Foster, 1939) Skrjabin & Petrov, 1950 (redescription)
Amphimerus pseudofelineus (Ward, 1901) Barker, 1911 (redescription)
Amphimerus speciosus (Stiles & Hassall, 1896) Barker, 1911 (redescription)
Cladocystis Poche, 1926 (identification resource)
Cladocystis intestinalis Vaz, 1932 accepted as Neocladocystis intestinalis (Vaz, 1932) Manter & Pritchard, 1969 (redescription)
Cladocystis trifolium (Braun, 1901) Poche, 1926 (redescription)
Clonorchis Looss, 1907 (identification resource)
Clonorchis sinensis (Cobbold, 1875) Looss, 1907 (redescription)
Cyclorchis Lühe, 1908 (identification resource)
Cyclorchis amphileucus (Looss, 1896) Lühe, 1908 (redescription)
Cyclorchis campula (Cobbold, 1876) Lühe, 1908 (redescription)
Cyclorchis varani Price, 1936 (redescription)
Delphinicola Yamaguti, 1933 (identification resource)
Delphinicola tenuis Yamaguti, 1933 (redescription)
Delphinicolinae Yamaguti, 1933 (identification resource)
Diasia Travassos, 1922 accepted as Diasiella Travassos, 1949 (identification resource)
Diasia diasi Travassos, 1922 accepted as Diasiella diasi (Travassos, 1922) Travassos, 1949 (redescription)
Erschoviorchis Skrjabin, 1945 (identification resource)
Erschoviorchis lintoni (Gower, 1939) Skrjabin, 1945 (redescription)
Euamphimerus Yamaguti, 1941 (identification resource)
Euamphimerus nipponicus Yamaguti, 1941 (redescription)
Evranorchis Skrjabin, 1944 (identification resource)
Evranorchis ophidiarum (Tubangui & Masilungan, 1935) Skrjabin, 1944 (redescription)
Gomtia Thapar, 1930 (identification resource)
Gomtia piscicola Thapar, 1930 (redescription)
Holometra Looss, 1899 (identification resource)
Holometra aegyptiaca Lühe, 1908 (redescription)
Holometra exigua (Mühling, 1898) Looss, 1899 (redescription)
Metametorchis Morozov, 1939 accepted as Parametorchis Skrjabin, 1913 (identification resource)
Metametorchis canadensis (Price, 1929) Skrjabin & Petrov, 1950 accepted as Parametorchis canadensis Price, 1929 (new combination reference)
Metametorchis canadensis (Price, 1929) Skrjabin & Petrov, 1950 accepted as Parametorchis canadensis Price, 1929 (redescription)
Metametorchis intermedius (Price, 1929) Skrjabin & Petrov, 1950 accepted as Parametorchis intermedius Price, 1929 (new combination reference)
Metametorchis manitobensis (Allen & Wardle, 1934) Skrjabin & Petrov, 1950 accepted as Parametorchis manitobensis Allen & Wardle, 1934 accepted as Parametorchis complexus (Stiles & Hassall, 1894) Skrjabin, 1913 (new combination reference)
Metametorchis manitobensis (Allen & Wardle, 1934) Skrjabin & Petrov, 1950 accepted as Parametorchis manitobensis Allen & Wardle, 1934 accepted as Parametorchis complexus (Stiles & Hassall, 1894) Skrjabin, 1913 (redescription)
Metametorchis skrjabini Morozov, 1939 accepted as Parametorchis skrjabini Morozov, 1939 (redescription)
Metorchiinae Lühe, 1909 (identification resource)
Metorchis Looss, 1899 (identification resource)
Metorchis albidus (Braun, 1893) Looss, 1899 accepted as Metorchis bilis (Braun, 1790) Odening, 1962 (redescription)
Metorchis conjunctus (Cobbold, 1860) Looss, 1899 (redescription)
Metorchis crassiusculus (Rudolphi, 1809) Looss, 1899 accepted as Metorchis bilis (Braun, 1790) Odening, 1962 (redescription)
Metorchis felis Hsu, 1934 (redescription)
Metorchis intermedius Heinemann, 1937 accepted as Metorchis xanthosomus (Creplin, 1846) Braun, 1902 (redescription)
Metorchis neomidis Baer, 1932 (redescription)
Metorchis orientalis Tanabe, 1920 (redescription)
Metorchis pinguinicola Skrjabin, 1913 accepted as Metorchis xanthosomus (Creplin, 1846) Braun, 1902 (redescription)
Metorchis tener Kowalewsky, 1903 (redescription)
Metorchis xanthosomus (Creplin, 1846) Braun, 1902 (redescription)
Metorchis zacharovi Layman, 1926 (redescription)
Microtrema Kobayashi, 1915 (identification resource)
Microtrema truncatum Kobayashi, 1915 (redescription)
Notaulus Skrjabin, 1913 accepted as Opisthorchis Blanchard, 1895 (identification resource)
Notaulus asiaticus Skrjabin, 1913 accepted as Opisthorchis asiaticus (Skrjabin, 1913) Morgan, 1927 (redescription)
Notaulus dendriticus (Morgan, 1927) Skrjabin & Petrov, 1950 accepted as Opisthorchis dendriticus Morgan, 1927 (new combination reference)
Notaulus dendriticus (Morgan, 1927) Skrjabin & Petrov, 1950 accepted as Opisthorchis dendriticus Morgan, 1927 (redescription)
Oesophagicola Yamaguti, 1933 (identification resource)
Oesophagicola laticaudae Yamaguti, 1933 (redescription)
Oesophagicolinae Yamaguti, 1933 (identification resource)
Opisthorchiidae Looss, 1899 (identification resource)
Opisthorchiinae Looss, 1899 (identification resource)
Opisthorchioidea Looss, 1899 (identification resource)
Opisthorchis Blanchard, 1895 (identification resource)
Opisthorchis caninus Barker, 1911 accepted as Paropisthorchis caninus (Barker, 1911) Stephens, 1912 (redescription)
Opisthorchis cheelis Lal, 1939 (redescription)
Opisthorchis entzi von Ratz, 1900 (redescription)
Opisthorchis felineus (Rivolta, 1884) Blanchard, 1895 (redescription)
Opisthorchis geminus (Looss, 1896) Looss, 1899 (redescription)
Opisthorchis geminus kirghisensis Skrjabin, 1913 (redescription)
Opisthorchis giddhis Lal, 1939 (redescription)
Opisthorchis longissimus (von Linstow, 1883) Stiles & Hassall, 1896 (redescription)
Opisthorchis obsequens Nicoll, 1914 (redescription)
Opisthorchis pedicellata Verma, 1927 accepted as Thaparotrema pedicellatum (Verma, 1927) Scholz, 2008 (additional source)
Opisthorchis piscicola Odhner, 1902 accepted as Thaparotrema piscicola (Odhner, 1902) Scholz, 2008 (redescription)
Opisthorchis simulans (Looss, 1896) Kowalewski, 1898 (redescription)
Opisthorchis skrjabini Zhukova, 1934 (redescription)
Opisthorchis tenuicollis (Rudolphi, 1819) Stiles & Hassall, 1896 (redescription)
Opisthorchis tonkae Wallace & Penner, 1939 (redescription)
Opisthorchis viverrini (Poirier, 1886) Stiles & Hassall, 1896 (redescription)
Pachytrema Looss, 1907 (identification resource)
Pachytrema calculus Looss, 1907 (redescription)
Pachytrema compositum Shcherbovich, 1946 (redescription)
Pachytrema hewletti (Phadke & Gulati, 1930) Purvis, 1937 (redescription)
Pachytrema magnum Travassos, 1921 (redescription)
Pachytrema paniceum Brinkmann, 1942 (redescription)
Pachytrema proximum Travassos, 1921 (redescription)
Pachytrema sanguineum (Linton, 1928) Purvis, 1937 (redescription)
Pachytrema tringae Layman, 1926 (redescription)
Parametorchis Skrjabin, 1913 (identification resource)
Parametorchis complexus (Stiles & Hassall, 1894) Skrjabin, 1913 (redescription)
Parametorchis noveboracensis Hung, 1926 accepted as Parametorchis complexus (Stiles & Hassall, 1894) Skrjabin, 1913 (redescription)
Phocitrema Goto & Ozaki, 1930 (identification resource)
Phocitrema fusiforme Goto & Ozaki, 1930 (redescription)