Alcicornis baylisi Nagaty, 1937 (redescription)
Apharyngogyliauchen Yamaguti, 1942 (original description)
Apharyngogyliauchen callyodontis Yamaguti, 1942 (original description)
Asymphylodora japonica Yamaguti, 1938 (redescription)
Bianium holocentri Yamaguti, 1942 accepted as Bianium hemistoma (Ozaki, 1928) Yamaguti, 1934 (original description)
Bucephalus varicus Manter, 1940 accepted as Bucephalus margaritae Ozaki & Ishibashi, 1934 (redescription)
Carassotrema koreanum Park, 1938 (redescription)
Caudotestis thalassomatis Yamaguti, 1942 accepted as Diplobulbus thalassomatis (Yamaguti, 1942) Cribb, 2005 (original description)
Caudotestis zacconis Yamaguti, 1934 accepted as Neoplagioporus zacconis (Yamaguti, 1934) Shimazu, 1990 (redescription)
Coitocaecum callyodontis Yamaguti, 1942 (original description)
Coitocaecum plagiorchis Ozaki, 1926 (redescription)
Deretrema nahaense Yamaguti, 1942 (original description)
Deretrema pacificum Yamaguti, 1942 (original description)
Diplobulbus callyodontis Yamaguti, 1942 (original description)
Ectenurus trachuri (Yamaguti, 1934) Yamaguti, 1970 (redescription)
Eurycreadium Manter, 1934 accepted as Stenakron Stafford, 1904 (taxonomy source)
Eurycreadium lethrini (Yamaguti, 1938) Yamaguti, 1942 accepted as Shimazuia lethrini (Yamaguti, 1938) Cribb, 2005 (new combination reference)
Eurycreadium lethrini (Yamaguti, 1938) Yamaguti, 1942 accepted as Shimazuia lethrini (Yamaguti, 1938) Cribb, 2005 (redescription)
Exorchis oviformis Kobayashi, 1921 (additional source)
Genarchopsis anguillae Yamaguti, 1938 (redescription)
Genarchopsis goppo Ozaki, 1925 (redescription)
Glomeritrema Yamaguti, 1942 (original description)
Glomeritrema subcuticola Yamaguti, 1942 (original description)
Gyliauchen nahaensis Ozaki, 1937 (redescription)
Hamacreadium epinepheli Yamaguti, 1934 accepted as Cainocreadium epinepheli (Yamaguti, 1934) Durio & Manter, 1968 (redescription)
Helicometra epinepheli Yamaguti, 1934 (redescription)
Hypocreadium dampieriae Yamaguti, 1942 (original description)
Hypocreadium scaphosomum (Manter, 1940) Bravo Hollis & Manter, 1957 (additional source)
Hypocreadium spinosum (Manter, 1940) Yamaguti, 1954 (additional source)
Hypohepaticola callionymi Yamaguti, 1934 (redescription)
Hysterolecitha nahaensis Yamaguti, 1942 (original description)
Lecithochirium caesionis Yamaguti, 1942 (original description)
Lecithochirium carangis Yamaguti, 1942 accepted as Plerurus digitatus (Looss, 1899) Looss, 1907 (original description)
Lecithochirium macrostoma Yamaguti, 1942 (original description)
Magnacetabulum trachuri Yamaguti, 1934 accepted as Ectenurus trachuri (Yamaguti, 1934) Yamaguti, 1970 (redescription)
Musculovesicula gymnothoracis Yamaguti, 1940 (redescription)
Opecoeloides furcatus (Bremser in Rudolphi, 1819) Odhner, 1928 (redescription)
Opecoelus mexicanus Manter, 1940 (redescription)
Opegaster ditrematis Yamaguti, 1942 (original description)
Opegaster plotosi Yamaguti, 1940 (redescription)
Orientophorus sayori Yamaguti, 1942 accepted as Pronoprymna sayori (Yamaguti, 1942) Dronen, Blend, Mohammed & Bannai, 2021 (original description)
Paradiscogaster chaetodontis Yamaguti, 1942 accepted as Paradiscogaster yamagutii Hafeezullah & Siddiqi, 1970 (original description)
Plagioporus japonicus Yamaguti, 1938 accepted as Macvicaria japonica (Yamaguti, 1938) Bray & Cribb, 1989 (redescription)
Podocotyle epinepheli Yamaguti, 1942 accepted as Allopodocotyle epinepheli (Yamaguti, 1942) Pritchard, 1966 (original description)
Podocotyle lethrini Yamaguti, 1942 accepted as Allopodocotyle lethrini (Yamaguti, 1942) Pritchard, 1966 (original description)
Podocotyle tamame Yamaguti, 1942 accepted as Allopodocotyle tamame (Yamaguti, 1942) Pritchard, 1966 (original description)
Pseudocreadium ovale Yamaguti, 1942 accepted as Lepidapedoides ovalis (Yamaguti, 1942) Bray, Cribb & Barker, 1996 (original description)
Pseudopecoelina Yamaguti, 1942 (original description)
Pseudopecoelina dampieriae Yamaguti, 1942 (basis of record)
Pseudoplagioporus lethrini Yamaguti, 1938 (redescription)
Pseudoplagioporus microrchis Yamaguti, 1942 (original description)
Pseudoproctotrema Yamaguti, 1942 (original description)
Pseudoproctotrema parupenei Yamaguti, 1942 (original description)
Schistorchiinae Yamaguti, 1942 (original description)
Schistorchis callyodontis Yamaguti, 1942 accepted as Plesioschistorchis callyodontis (Yamaguti, 1942) Blend, Karar & Dronen, 2017 (original description)
Schistorchis oligorchis (Johnston, 1913) Yamaguti, 1942 accepted as Schistorchis carneus Lühe, 1906 (new combination reference)
Schistorchis sigani Yamaguti, 1942 accepted as Plesioschistorchis sigani (Yamaguti, 1942) Blend, Karar & Dronen, 2017 (original description)
Sclerodistomum Looss, 1912 (additional source)
Sclerodistomum diodontis Yamaguti, 1942 (original description)
Siphoderina apharei Yamaguti, 1942 accepted as Metadena apharei (Yamaguti, 1942) Yamaguti, 1954 (original description)
Siphoderina lutiani Yamaguti, 1942 accepted as Metadena lutiani (Yamaguti, 1942) Miller & Cribb, 2008 (original description)
Sterrhurus magnacetabulum Yamaguti, 1942 accepted as Lecithochirium pacificum (Yamaguti, 1958) Nasir & Diaz, 1971 (original description)
Urorchis acheilognathi Yamaguti, 1934 (redescription)