Aphanurus harengulae Yamaguti, 1938 (original description)
Aphanurus stossichii (Monticelli, 1891) Looss, 1907 (redescription)
Aponurus acropomatis Yamaguti, 1938 (original description)
Aponurus callionymi Yamaguti, 1938 (original description)
Asymphylodora japonica Yamaguti, 1938 (original description)
Asymphylodora macrostoma Ozaki, 1925 accepted as Asymphylodora innominata (Faust, 1924) Shimazu, Urabe & Grygier, 2011 (redescription)
Bacciger harengulae Yamaguti, 1938 accepted as Pseudobacciger harengulae (Yamaguti, 1938) Nahhas & Cable, 1964 (original description)
Benthotrema hoplognathi Yamaguti, 1938 accepted as Pseudosteringophorus hoplognathi Yamaguti, 1940 (original description)
Bivesicula epinepheli Yamaguti, 1938 accepted as Bivesicula claviformis Yamaguti, 1934 (original description)
Bivesicula synodi Yamaguti, 1938 (original description)
Bivesiculoides Yamaguti, 1938 (original description)
Bivesiculoides atherinae Yamaguti, 1938 (original description)
Brachyenteron acropomatis Yamaguti, 1938 (original description)
Brachyenteron doederleiniae Yamaguti, 1938 (original description)
Bucephalopsis scombropis Yamaguti, 1938 accepted as Prosorhynchoides scombropis (Yamaguti, 1938) Liu, Peng, Gao, Fu, Wu, Lu, Gao & Xiao, 2010 (original description)
Caudotestis neopercis Yamaguti, 1938 (original description)
Caudotestis zacconis Yamaguti, 1934 accepted as Neoplagioporus zacconis (Yamaguti, 1934) Shimazu, 1990 accepted as Urorchis zacconis (Yamaguti, 1934) Itsukushima, Gosho, Tsuchida & Urabe, 2025 (redescription)
Clinostomum complanatum (Rudolphi, 1814) Braun, 1899 (redescription)
Coitocaecum latum Ozaki, 1929 (additional source)
Coitocaecum orthorchis Ozaki, 1926 (redescription)
Cymbephallus carangi Yamaguti, 1938 accepted as Pseudopecoeloides carangis (Yamaguti, 1938) Yamaguti, 1940 (original description)
Cymbephallus elongatus Yamaguti, 1938 accepted as Pseudopecoelus elongatus (Yamaguti, 1938) Von Wicklen, 1946 (original description)
Cymbephallus japonicus Yamaguti, 1938 accepted as Pseudopecoelus japonicus (Yamaguti, 1938) von Wicklen, 1946 (original description)
Decemtestis bera Yamaguti, 1938 (original description)
Decemtestis goniistii Yamaguti, 1938 (original description)
Decemtestis megacotyla Yamaguti, 1938 (original description)
Decemtestis neopercis Yamaguti, 1938 (original description)
Decemtestis pagrosomi Yamaguti, 1938 (original description)
Decemtestis spari Yamaguti, 1938 (original description)
Derogenes crassus Manter, 1934 (redescription)
Derogenes macrostoma Yamaguti, 1938 (original description)
Derogenes varicus (Müller, 1784) Looss, 1901 (redescription)
Dinosoma apogonis Yamaguti, 1938 (original description)
Dinosoma hynnodi Yamaguti, 1938 (original description)
Dinosoma manteri Yamaguti, 1938 (original description)
Dinosoma synaphobranchi Yamaguti, 1938 (original description)
Dinosoma tortum Yamaguti, 1938 (original description)
Diphterostomum magnacetabulum Yamaguti, 1938 (original description)
Diphterostomum spari Yamaguti, 1938 accepted as Diphterostomum brusinae (Stossich, 1888) Stossich, 1904 (original description)
Dolichoenterum longissimum Ozaki, 1924 (redescription)
Ectenurus platycephali Yamaguti, 1934 accepted as Erilepturus hamati (Yamaguti, 1934) Manter, 1947 (redescription)
Exorchis oviformis Kobayashi, 1915 (redescription)
Genarchopsis anguillae Yamaguti, 1938 (original description)
Genarchopsis goppo Ozaki, 1925 (redescription)
Glomericirrus amadai Yamaguti, 1937 (redescription)
Glomericirrus propositus Yamaguti, 1938 (original description)
Gonocerca crassa Manter, 1934 (redescription)
Hemiurus arelisci Yamaguti, 1938 (original description)
Hypocreadium patellare Yamaguti, 1938 (original description)
Hysterolecitha xesuri Yamaguti, 1938 accepted as Thulinia microrchis (Yamaguti, 1934) Bray, Cribb & Barker, 1993 (original description)
Isoparorchis trisimilitubis Southwell, 1913 (redescription)
Lecithaster sayori Yamaguti, 1938 (original description)
Lecithochirium japonicum Yamaguti, 1938 (original description)
Lecithocladium johnii Yamaguti, 1938 accepted as Elytrophallus johnii (Yamaguti, 1938) Liu, Peng, Gao, Fu, Wu, Lu, Gao & Xiao, 2010 (original description)
Lecithophyllum fuscum Yamaguti, 1938 (original description)
Lepidapedon coelorhynchi Yamaguti, 1938 (original description)
Lepidapedon genge Yamaguti, 1938 (original description)
Lepidapedon hoplognathi Yamaguti, 1938 accepted as Paralepidapedon hoplognathi (Yamaguti, 1938) Shimazu & Shimura, 1984 (original description)
Lepidapedon luteum Yamaguti, 1938 (original description)
Lepidapedon sebastisci Yamaguti, 1938 accepted as Paralepidapedon sebastisci (Yamaguti, 1938) Shimazu & Shimura, 1984 (original description)
Lepocreadium clavatum (Ozaki, 1932) Yamaguti, 1938 accepted as Lepotrema clavatum Ozaki, 1932 (additional source)
Lepocreadium clavatum (Ozaki, 1932) Yamaguti, 1938 accepted as Lepotrema clavatum Ozaki, 1932 (new combination reference)
Maculifer japonicus Layman, 1931 (redescription)
Maculifer pacificus Yamaguti, 1938 (original description)
Metadena pagrosomi Yamaguti, 1938 (original description)
Neopercis multifasciatus (basis of record)
Notoporus Yamaguti, 1938 (original description)
Notoporus leiognathi Yamaguti, 1938 (original description)
Notoporus trachuri Yamaguti, 1938 accepted as Neonotoporus trachuri (Yamaguti, 1938) Srivastava, 1942 (original description)
Opechona hynnodi Yamaguti, 1938 accepted as Prodistomum hynnodi (Yamaguti, 1938) Bray & Gibson, 1990 (original description)
Opechona olssoni (Yamaguti, 1934) Yamaguti, 1938 (new combination reference)
Opechona scombri Yamaguti, 1938 accepted as Lepocreadium scombri (Yamaguti, 1938) Ching, 1960 accepted as Prodistomum orientale (Layman, 1930) Bray & Gibson, 1990 (original description)
Opecoelus goniistii Yamaguti, 1938 (original description)
Opecoelus inimici Yamaguti, 1934 (redescription)
Opegaster apogonichthydis Yamaguti, 1938 (original description)
Opegaster macrorchis Yamaguti, 1938 (original description)
Opegaster tamori Yamaguti, 1938 (original description)
Paradiscogaster chaetodontis Yamaguti, 1938 (original description)
Parahemiurus atherinae Yamaguti, 1938 accepted as Parahemiurus merus (Linton, 1910) Manter, 1940 (original description)
Parahemiurus harengulae Yamaguti, 1938 (original description)
Paramonorcheides Yamaguti, 1938 (original description)
Paramonorcheides awatati Yamaguti, 1938 (original description)
Paramonorcheides sirembonis Yamaguti, 1938 (original description)
Piriforma Yamaguti, 1938 (original description)
Piriforma macrorhamphosi Yamaguti, 1938 (original description)
Plagioporus apogonichthydis Yamaguti, 1938 (original description)
Plagioporus calotomi (Yamaguti, 1934) Yamaguti, 1938 accepted as Choerodonicola calotomi (Yamaguti, 1934) Cribb, 2005 (new combination reference)
Plagioporus choerodonis (Yamaguti, 1934) Yamaguti, 1938 accepted as Choerodonicola choerodontis (Yamaguti, 1934) Cribb, 2005 (new combination reference)
Plagioporus isaitschikowi (Layman, 1930) Price, 1934 accepted as Macvicaria isaitschikowi (Layman, 1930) Bray, 1985 (redescription)
Plagioporus japonicus Yamaguti, 1938 accepted as Macvicaria japonica (Yamaguti, 1938) Bray & Cribb, 1989 (original description)
Plagioporus pacificus Yamaguti, 1938 accepted as Choerodonicola pacificus (Yamaguti, 1938) Cribb, 2005 (original description)
Plagioporus sillagonis Yamaguti, 1938 accepted as Macvicaria sillagonis (Yamaguti, 1938) Bray, 1985 (original description)
Pleorchis sciaenae Yamaguti, 1938 (original description)
Proctotrematoides Yamaguti, 1938 (original description)
Proctotrematoides pisodontophidis Yamaguti, 1938 (original description)
Prosorhynchus aculeatus Odhner, 1905 accepted as Skrjabiniella aculeata (Odhner, 1905) Issaitschikow, 1928 (redescription)
Prosorhynchus crucibulum (Rudolphi, 1819) Odhner, 1905 (redescription)
Prosorhynchus magniovatus Yamaguti, 1938 accepted as Skrjabiniella uniporus (Ozaki, 1924) Pigulevsky, 1931 (original description)
Pseudexorchis Yamaguti, 1938 (original description)
Pseudexorchis major (Hasegawa, 1935) Yamaguti, 1938 (new combination reference)