Acanthoparyphium charadrii Yamaguti, 1939 (original description)
Acanthoparyphium kurogamo Yamaguti, 1939 (original description)
Acanthoparyphium melanittae Yamaguti, 1939 (original description)
Acanthoparyphium spinulosum suzugamo Yamaguti, 1939 (original description)
Acanthoparyphium tyosenense Yamaguti, 1939 (original description)
Anser fabalis sibiricus accepted as Anser fabalis middendorffii (Alphéraky, 1905) (basis of record)
Catatropis cygni Yamaguti, 1939 (original description)
Catatropis hisikui Yamaguti, 1939 (original description)
Catatropis pacifera Noble, 1933 accepted as Notocotylus pacifera (Noble, 1933) Harwood, 1939 (redescription)
Centrocestus formosanus (Nishigori, 1924) Price, 1932 (redescription)
Cercocotyla Yamaguti, 1939 (original description)
Cercocotyla cerylis Yamaguti, 1939 (original description)
Corpopyrum longisacculatum Yamaguti, 1933 accepted as Haematotrephus longisacculatum (Yamaguti, 1933) Dronen & Blend, 2015 (redescription)
Cotylurus ban Yamaguti, 1939 (original description)
Cryptocotyle lingua (Creplin, 1825) Fischoeder, 1903 (redescription)
Cyathocotyle melanittae Yamaguti, 1934 (redescription)
Cyclocoelum mutabile (Zeder, 1800) Brandes, 1892 (redescription)
Cyclocoelum turusigi Yamaguti, 1939 accepted as Selfcoelum turusigi (Yamaguti, 1939) Dronen & Blend, 2002 (original description)
Echinochasmus gorsakii Yamaguti, 1939 (original description)
Echinochasmus japonicus Tanabe, 1926 (redescription)
Echinochasmus milvi Yamaguti, 1939 (original description)
Echinochasmus tobi Yamaguti, 1939 (original description)
Echinoparyphium phalacrocoracis Yamaguti, 1939 accepted as Petasiger phalacrocoracis (Yamaguti, 1939) Skrjabin & Bashkirova, 1956 (original description)
Echinoparyphium recurvatum (von Linstow, 1873) Lühe, 1909 (redescription)
Echinoparyphium recurvatum vanelli Yamaguti, 1939 (original description)
Echinostoma anseris Yamaguti, 1939 (original description)
Echinostoma ralli Yamaguti, 1934 (additional source)
Echinostoma stantschinskii caudatum Yamaguti, 1939 accepted as Echinostoma stantschinskii Semenov, 1927 (original description)
Galactosomum Looss, 1899 (taxonomy source)
Galactosomum phalacrocoracis Yamaguti, 1939 (original description)
Gymnophallus bursicola Odhner, 1900 (redescription)
Gymnophallus macrostoma Yamaguti, 1939 (original description)
Gynaecotyla Yamaguti, 1939 (original description)
Gynaecotyla adunca (Linton, 1905) Yamaguti, 1939 (new combination reference)
Gynaecotyla jaegerskioeldi (Travassos, 1921) Yamaguti, 1939 accepted as Gynaecotyla adunca (Linton, 1905) Yamaguti, 1939 (new combination reference)
Gynaecotyla simillima (Travassos, 1921) Yamaguti, 1939 accepted as Microphallus simillimus (Travassos, 1921) Martorelli, 1991 (new combination reference)
Gynaecotyla squatarolae (Yamaguti, 1934) Yamaguti, 1939 (redescription)
Gynaecotyla squatarolae (Yamaguti, 1934) Yamaguti, 1939 (new combination reference)
Himasthla kusasigi Yamaguti, 1939 (original description)
Himasthla megacotyla Yamaguti, 1939 (original description)
Holostephanus curonensis (Szidat, 1933) Yamaguti, 1939 (new combination reference)
Holostephanus metorchis Yamaguti, 1939 (original description)
Holostephanus nipponicus Yamaguti, 1939 (original description)
Hysteromorpha triloba (Rudolphi, 1819) Lutz, 1931 (redescription)
Levinseniella bucephalae (Yamaguti, 1935) Yamaguti, 1939 (redescription)
Levinseniella bucephalae (Yamaguti, 1935) Yamaguti, 1939 (new combination reference)
Lyperosomum strigis Yamaguti, 1939 accepted as Brachylecithum strigis (Yamaguti, 1939) Oshmarin, 1963 (original description)
Lyperosomum urocissae Yamaguti, 1939 (original description)
Maritrema eroliae Yamaguti, 1939 (original description)
Mesostephanus milvi Yamaguti, 1939 (original description)
Neodiplostomum strigis Yamaguti, 1939 (original description)
Notocotylus parviovatus Yamaguti, 1934 (redescription)
Ophthalmophagus nasicola Witenberg, 1926 (redescription)
Opisthorchis anatis Yamaguti, 1933 accepted as Amphimerus anatis (Yamaguti, 1933) Gower, 1938 (additional source)
Ornithodiplostomum podicipitis Yamaguti, 1939 accepted as Posthodiplostomum podicipitis (Yamaguti, 1939) Dubois, 1944 (original description)
Oswaldoia corvi Yamaguti, 1939 accepted as Lyperosomum corvi (Yamaguti, 1939) Travassos, 1944 (original description)
Oswaldoia turdi Yamaguti, 1939 accepted as Lyperosomum turdia (Ku, 1938) Travassos, 1944 (original description)
Pachytrema calculus Looss, 1907 (redescription)
Paramonostomum bucephalae Yamaguti, 1935 (redescription)
Paryphostomum radiatum (Dujardin, 1845) Dietz, 1909 accepted as Petasiger radiatus (Dujardin, 1845) Tkach, Kudlai & Kostadinova, 2015 (redescription)
Petasiger grandivesicularis Ishii, 1935 accepted as Neopetasiger grandivesicularis (Ishii, 1935) Baschkirova, 1947 (redescription)
Petasiger lobatus Yamaguti, 1933 accepted as Petasiger pungens (Linstow, 1894) Fuhrmann, 1928 accepted as Neopetasiger pungens (von Linstow, 1894) Tkach, Kudlai & Kostadinova, 2016 (redescription)
Plagiorchis maculosus motacillae Yamaguti, 1939 accepted as Plagiorchis motacillae Yamaguti, 1939 (original description)
Pseudodiplostomum major Yamaguti, 1939 (original description)
Pseudoheterophyes Yamaguti, 1939 accepted as Heterophyopsis Tubangui & Africa, 1938 (original description)
Pseudoheterophyes continua (Onji & Nishio, 1924) Yamaguti, 1939 accepted as Heterophyopsis continua (Onji & Nishio, 1916) Price, 1940 (redescription)
Pseudoheterophyes continua (Onji & Nishio, 1924) Yamaguti, 1939 accepted as Heterophyopsis continua (Onji & Nishio, 1916) Price, 1940 (new combination reference)
Pseudoheterophyes continua major Yamaguti, 1939 (original description)
Pseudospelotrema Yamaguti, 1939 (original description)
Pseudospelotrema (Pseudospelotrematoides) Yamaguti, 1939 (original description)
Pseudospelotrema (Pseudospelotrematoides) cincli Yamaguti, 1939 (original description)
Pseudospelotrema japonicum Yamaguti, 1939 (original description)
Pseudospelotrema uriae Yamaguti, 1939 (original description)
Psilochasmus longicirratus Skrjabin, 1913 accepted as Psilochasmus oxyurus (Creplin, 1825) Lühe, 1909 (redescription)
Pygidiopsis phalacrocoracis Yamaguti, 1939 (original description)
Pygidiopsis summus Onji & Nishio, 1916 accepted as Pygidiopsis summa Onji & Nishio, 1916 (redescription)
Renicola keimahuri Yamaguti, 1939 (original description)
Renicola umigarasu Yamaguti, 1939 (original description)
Spelotrema capellae Yamaguti, 1939 accepted as Microphallus capellae (Yamaguti, 1939) Baer, 1944 accepted as Microphallus pygmaeus (Levinsen, 1881) Baer, 1944 (original description)
Spelotrema longicolle Yamaguti, 1939 accepted as Microphallus longicollis (Yamaguti, 1939) Baer, 1944 (original description)
Stephanoprora magniovata Yamaguti, 1939 (original description)
Stephanoprora pendula (Looss, 1899) Odhner, 1910 (redescription)
Stictodora Looss, 1899 (taxonomy source)
Stictodora japonica Yamaguti, 1939 (original description)
Stictodora lari Yamaguti, 1939 (original description)
Stictodora mergi Yamaguti, 1939 (original description)
Strigea falconis japonensis Yamaguti, 1939 accepted as Strigea falconis mcgregori Tubangui, 1932 (original description)
Uvitellina pseudocotylea Witenberg, 1923 (redescription)

Argentinean part of the Rio de La Plata for Maritrema bonaerensis Etchegoin & Martorelli, 1997 
Baltic sea for Microphallus primas (Jägerskiöld, 1908) Stunkard, 1951 
Honshu for Cotylurus ban Yamaguti, 1939 
Honshu for Holostephanus metorchis Yamaguti, 1939 
Honshu for Lyperosomum strigis Yamaguti, 1939 
Honshu for Neodiplostomum strigis Yamaguti, 1939 
Honshu for Oswaldoia turdi Yamaguti, 1939 
Honshu for Stephanoprora magniovata Yamaguti, 1939 
Japan for Acanthoparyphium spinulosum suzugamo Yamaguti, 1939 
Japan for Catatropis pacifera Noble, 1933 
Japan for Centrocestus formosanus (Nishigori, 1924) Price, 1932 
Japan for Cercocotyla cerylis Yamaguti, 1939 
Japan for Cyathocotyle melanittae Yamaguti, 1934 
Japan for Cyclocoelum mutabile (Zeder, 1800) Brandes, 1892 
Japan for Echinochasmus gorsakii Yamaguti, 1939 
Japan for Echinochasmus japonicus Tanabe, 1926 
Japan for Echinochasmus milvi Yamaguti, 1939 
Japan for Echinochasmus tobi Yamaguti, 1939 
Japan for Echinoparyphium recurvatum (von Linstow, 1873) Lühe, 1909 
Japan for Echinoparyphium recurvatum vanelli Yamaguti, 1939 
Japan for Echinostoma anseris Yamaguti, 1939 
Japan for Echinostoma ralli Yamaguti, 1934 
Japan for Hysteromorpha triloba (Rudolphi, 1819) Lutz, 1931 
Japan for Mesostephanus milvi Yamaguti, 1939 
Japan for Notocotylus parviovatus Yamaguti, 1934 
Japan for Opisthorchis anatis Yamaguti, 1933 
Japan for Ornithodiplostomum podicipitis Yamaguti, 1939 
Japan for Paramonostomum bucephalae Yamaguti, 1935 
Japan for Petasiger grandivesicularis Ishii, 1935 
Japan for Petasiger lobatus Yamaguti, 1933 
Japan for Plagiorchis maculosus motacillae Yamaguti, 1939 
Japan for Pseudodiplostomum major Yamaguti, 1939 
Japan for Pseudospelotrema (Pseudospelotrematoides) cincli Yamaguti, 1939 
Japan for Pygidiopsis summus Onji & Nishio, 1916 
Japan for Stictodora japonica Yamaguti, 1939 
Japanese Exclusive Economic Zone for Acanthoparyphium charadrii Yamaguti, 1939 
Japanese Exclusive Economic Zone for Acanthoparyphium kurogamo Yamaguti, 1939 
Japanese Exclusive Economic Zone for Acanthoparyphium marilae Yamaguti, 1934 
Japanese Exclusive Economic Zone for Acanthoparyphium melanittae Yamaguti, 1939 
Japanese Exclusive Economic Zone for Catatropis cygni Yamaguti, 1939 
Japanese Exclusive Economic Zone for Catatropis hisikui Yamaguti, 1939 
Japanese Exclusive Economic Zone for Centrocestus armatus (Tanabe, 1922) Price, 1932 
Japanese Exclusive Economic Zone for Corpopyrum longisacculatum Yamaguti, 1933 
Japanese Exclusive Economic Zone for Cryptocotyle lingua (Creplin, 1825) Fischoeder, 1903 
Japanese Exclusive Economic Zone for Cyclocoelum turusigi Yamaguti, 1939 
Japanese Exclusive Economic Zone for Echinoparyphium phalacrocoracis Yamaguti, 1939 
Japanese Exclusive Economic Zone for Echinostoma stantschinskii caudatum Yamaguti, 1939 
Japanese Exclusive Economic Zone for Galactosomum phalacrocoracis Yamaguti, 1939 
Japanese Exclusive Economic Zone for Gymnophallus bursicola Odhner, 1900 
Japanese Exclusive Economic Zone for Gymnophallus macrostoma Yamaguti, 1939 
Japanese Exclusive Economic Zone for Gynaecotyla Yamaguti, 1939 
Japanese Exclusive Economic Zone for Gynaecotyla squatarolae (Yamaguti, 1934) Yamaguti, 1939 
Japanese Exclusive Economic Zone for Himasthla kusasigi Yamaguti, 1939 
Japanese Exclusive Economic Zone for Himasthla megacotyla Yamaguti, 1939 
Japanese Exclusive Economic Zone for Levinseniella bucephalae (Yamaguti, 1935) Yamaguti, 1939 
Japanese Exclusive Economic Zone for Maritrema eroliae Yamaguti, 1939 
Japanese Exclusive Economic Zone for Ophthalmophagus nasicola Witenberg, 1926 
Japanese Exclusive Economic Zone for Pachytrema calculus Looss, 1907 
Japanese Exclusive Economic Zone for Paryphostomum radiatum (Dujardin, 1845) Dietz, 1909 
Japanese Exclusive Economic Zone for Pseudoheterophyes continua (Onji & Nishio, 1924) Yamaguti, 1939 
Japanese Exclusive Economic Zone for Pseudoheterophyes continua major Yamaguti, 1939 
Japanese Exclusive Economic Zone for Pseudospelotrema japonicum Yamaguti, 1939 
Japanese Exclusive Economic Zone for Pseudospelotrema uriae Yamaguti, 1939 
Japanese Exclusive Economic Zone for Psilochasmus longicirratus Skrjabin, 1913 
Japanese Exclusive Economic Zone for Pygidiopsis phalacrocoracis Yamaguti, 1939 
Japanese Exclusive Economic Zone for Renicola keimahuri Yamaguti, 1939 
Japanese Exclusive Economic Zone for Renicola umigarasu Yamaguti, 1939 
Japanese Exclusive Economic Zone for Spelotrema capellae Yamaguti, 1939 
Japanese Exclusive Economic Zone for Spelotrema longicolle Yamaguti, 1939 
Japanese Exclusive Economic Zone for Stephanoprora pendula (Looss, 1899) Odhner, 1910 
Japanese Exclusive Economic Zone for Stictodora lari Yamaguti, 1939 
Japanese Exclusive Economic Zone for Stictodora mergi Yamaguti, 1939 
Japanese Exclusive Economic Zone for Uvitellina pseudocotylea Witenberg, 1923 
Korean Peninsula for Acanthoparyphium marilae Yamaguti, 1934 
Korean Peninsula for Acanthoparyphium tyosenense Yamaguti, 1939 
Scotland for Microphallus primas (Jägerskiöld, 1908) Stunkard, 1951 
Shiga Prefecture for Oswaldoia corvi Yamaguti, 1939 
Shikoku for Strigea falconis japonensis Yamaguti, 1939 
Sweden for Microphallus primas (Jägerskiöld, 1908) Stunkard, 1951 
Taiwan for Lyperosomum urocissae Yamaguti, 1939 
Wales for Microphallus primas (Jägerskiöld, 1908) Stunkard, 1951