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)
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 (redescription)
Atrophecaecum diploporum (Stunkard, 1931) Morozov, 1955 accepted as Proctocaecum coronarium (Cobbold, 1861) Baugh, 1957 (new combination reference)
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)
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)
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)