Acanthostomidae Poche, 1926 accepted as Cryptogonimidae Ward, 1917 (identification resource)
Acanthostomum Looss, 1899 (identification resource)
Acanthostomum absconditum (Looss, 1901) Gohar, 1934 accepted as Proctocaecum absconditum (Looss, 1901) Lamothe-Argumedo & Ponciano-Rodriguez, 1986 (redescription)
Acanthostomum atae Tubangui & Masilungan, 1936 accepted as Proctocaecum atae (Tubangui & Masiluñgan) Brooks, 1980 (redescription)
Acanthostomum coronarium (Cobbold, 1861) Looss, 1899 accepted as Proctocaecum coronarium (Cobbold, 1861) Baugh, 1957 (redescription)
Acanthostomum elongatum Tubangui & Masiluñgan, 1936 (redescription)
Acanthostomum gonotyl (Dollfus, 1950) Morozov, 1955 accepted as Proctocaecum gonotyl (Dollfus, 1950) Brooks, 1980 (redescription)
Acanthostomum gonotyl (Dollfus, 1950) Morozov, 1955 accepted as Proctocaecum gonotyl (Dollfus, 1950) Brooks, 1980 (new combination reference)
Acanthostomum imbutiforme (Molin, 1859) Gohar, 1934 accepted as Timoniella imbutiforme (Molin, 1859) Brooks, 1980 accepted as Timoniella imbutiformis (Molin, 1859) Brooks, 1980 (redescription)
Acanthostomum indicum Sinha, 1942 (redescription)
Acanthostomum praeteritum (Looss, 1901) Gohar, 1934 accepted as Timoniella praeterita (Looss, 1901) Maillard, 1974 (redescription)
Acanthostomum productum (Odhner, 1902) Gohar, 1934 accepted as Proctocaecum productum (Odhner, 1902) Brooks, 1980 (redescription)
Acanthostomum quaesitum (Nicoll, 1918) Hughes, Higginbotham & Clary, 1941 accepted as Proctocaecum nicolli Brooks, 1980 (status source)
Acanthostomum spiniceps (Looss, 1896) Looss, 1899 (redescription)
Acanthostomum vicinum (Odhner, 1902) Gohar, 1934 accepted as Proctocaecum vicinum (Odhner, 1902) Brooks, 1980 (redescription)
Anisocladium Looss, 1902 (identification resource)
Anisocladium fallax (Rudolphi, 1819) Looss, 1902 (redescription)
Anisocoeliinae Price, 1940 accepted as Cryptogonimidae Ward, 1917 (identification resource)
Anisocoelium Lühe, 1900 (identification resource)
Anisocoelium capitellatum (Rudolphi, 1819) Lühe, 1900 (redescription)
Atrophecaecum Bhalerao, 1940 accepted as Acanthostomum Looss, 1899 (identification resource)
Atrophecaecum burminis (Bhalerao, 1926) Bhalerao, 1940 accepted as Acanthostomum burminis (Bhalerao, 1926) Bhalerao, 1936 (redescription)
Atrophecaecum diploporum (Stunkard, 1931) Morozov, 1955 accepted as Proctocaecum coronarium (Cobbold, 1861) Baugh, 1957 (new combination reference)
Atrophecaecum diploporum (Stunkard, 1931) Morozov, 1955 accepted as Proctocaecum coronarium (Cobbold, 1861) Baugh, 1957 (redescription)
Atrophecaecum minimum (Stunkard, 1938) Morozov, 1955 accepted as Acanthostomum minimum Stunkard, 1938 (new combination reference)
Atrophecaecum minimum (Stunkard, 1938) Morozov, 1955 accepted as Acanthostomum minimum Stunkard, 1938 (redescription)
Brientrema Dollfus, 1950 (identification resource)
Brientrema malapteruri Dollfus, 1950 (redescription)
Brientrema pelecani Dollfus, 1950 (redescription)
Brientrematinae Dollfus, 1950 accepted as Cryptogonimidae Ward, 1917 (identification resource)
Gymnatrema Morozov, 1955 (original description)
Gymnatrema gymnarchi (Dollfus, 1950) Morozov, 1955 (redescription)
Gymnatrema gymnarchi (Dollfus, 1950) Morozov, 1955 (new combination reference)
Gymnophallidae Odhner, 1905 (identification resource)
Gymnophalloides Fujita, 1925 (identification resource)
Gymnophalloides tokiensis Fujita, 1925 (redescription)
Gymnophallus Odhner, 1900 (identification resource)
Gymnophallus affinis Jameson & Nicoll, 1913 (redescription)
Gymnophallus bursicola Odhner, 1900 (redescription)
Gymnophallus choledochus Odhner, 1900 (redescription)
Gymnophallus deliciosus (Olsson, 1893) Odhner, 1900 (redescription)
Gymnophallus macroporus Jameson & Nicoll, 1913 accepted as Lacunovermis macroporus (Jameson & Nicoll, 1913) (redescription)
Gymnophallus macrostoma Yamaguti, 1939 (redescription)
Gymnophallus micropharyngeus (Lühe, 1898) Odhner, 1900 (redescription)
Gymnophallus oedemiae Jameson & Nicoll, 1913 (redescription)
Gymnophallus ovoplenus Jameson & Nicoll, 1913 (redescription)
Gymnophallus somateriae (Levinsen, 1881) Odhner, 1900 (redescription)
Heterophyata accepted as Opisthorchiata (original description)
Isocoeliinae Price, 1940 accepted as Cryptogonimidae Ward, 1917 (identification resource)
Isocoelium Ozaki, 1927 (identification resource)
Isocoelium mediolecithale Ozaki, 1927 (redescription)
Oesophagicola Yamaguti, 1933 (identification resource)
Oesophagicola laticaudae Yamaguti, 1933 (additional source)
Oesophagicolinae Yamaguti, 1933 (identification resource)
Paraisocoelium Ozaki, 1932 (identification resource)
Paraisocoelium exorchis Ozaki, 1932 (redescription)

Adriatic Sea for Acanthostomum praeteritum (Looss, 1901) Gohar, 1934 
Adriatic Sea for Anisocladium fallax (Rudolphi, 1819) Looss, 1902 
Adriatic Sea for Anisocoelium capitellatum (Rudolphi, 1819) Lühe, 1900 
Australian Exclusive Economic Zone for Acanthostomum quaesitum (Nicoll, 1918) Hughes, Higginbotham & Clary, 1941 
Burma for Atrophecaecum burminis (Bhalerao, 1926) Bhalerao, 1940 
Democratic Republic of the Congo for Acanthostomum gonotyl (Dollfus, 1950) Morozov, 1955 
Democratic Republic of the Congo for Acanthostomum productum (Odhner, 1902) Gohar, 1934 
Democratic Republic of the Congo for Acanthostomum vicinum (Odhner, 1902) Gohar, 1934 
Democratic Republic of the Congo for Brientrema malapteruri Dollfus, 1950 
Democratic Republic of the Congo for Brientrema pelecani Dollfus, 1950 
Egypt for Acanthostomum absconditum (Looss, 1901) Gohar, 1934 
Egyptian Exclusive Economic Zone for Acanthostomum imbutiforme (Molin, 1859) Gohar, 1934 
Egyptian Exclusive Economic Zone for Acanthostomum praeteritum (Looss, 1901) Gohar, 1934 
English Coast for Gymnophallus affinis Jameson & Nicoll, 1913 
English Coast for Gymnophallus macroporus Jameson & Nicoll, 1913 
English Coast for Gymnophallus oedemiae Jameson & Nicoll, 1913 
English Coast for Gymnophallus ovoplenus Jameson & Nicoll, 1913 
Franz Josef Land for Gymnophallus choledochus Odhner, 1900 
Greenland for Gymnophallus somateriae (Levinsen, 1881) Odhner, 1900 
Greenlandic Exclusive Economic Zone for Gymnophallus choledochus Odhner, 1900 
India for Acanthostomum indicum Sinha, 1942 
India for Atrophecaecum burminis (Bhalerao, 1926) Bhalerao, 1940 
Japanese Exclusive Economic Zone for Gymnophalloides tokiensis Fujita, 1925 
Japanese Exclusive Economic Zone for Gymnophallus bursicola Odhner, 1900 
Japanese Exclusive Economic Zone for Isocoelium mediolecithale Ozaki, 1927 
Japanese Exclusive Economic Zone for Oesophagicola laticaudae Yamaguti, 1933 
Japanese Exclusive Economic Zone for Paraisocoelium exorchis Ozaki, 1932 
Korea for Gymnophallus macrostoma Yamaguti, 1939 
Philippines Exclusive Economic Zone for Acanthostomum atae Tubangui & Masilungan, 1936 
Philippines Exclusive Economic Zone for Acanthostomum elongatum Tubangui & Masiluñgan, 1936 
Spitsbergen for Gymnophallus bursicola Odhner, 1900 
Spitsbergen for Gymnophallus choledochus Odhner, 1900 
Spitsbergen for Gymnophallus deliciosus (Olsson, 1893) Odhner, 1900 
Spitsbergen for Gymnophallus somateriae (Levinsen, 1881) Odhner, 1900 
Sudan for Gymnatrema gymnarchi (Dollfus, 1950) Morozov, 1955 
Yucatán for Atrophecaecum minimum (Stunkard, 1938) Morozov, 1955