Acaenodera placophora Manter & Pritchard, 1960 (redescription)
Acanthuritrema Yamaguti, 1970 (original description)
Acanthuritrema magnireceptaculum Yamaguti, 1970 (original description)
Acanthuritrema multivitellosum Yamaguti, 1970 (original description)
Adenodidymocystis Yamaguti, 1970 (original description)
Adenodidymocystis intestinalis Yamaguti, 1970 (original description)
Albulatrema ovale Yamaguti, 1965 (redescription)
Allodidymocodium Yamaguti, 1970 (original description)
Allodidymocodium unitubulare Yamaguti, 1970 (original description)
Allolepidapedon petimba Yamaguti, 1970 accepted as Allolepidapedon fistulariae Yamaguti, 1940 (original description)
Allometanematobothrioides lepidocybii Yamaguti, 1965 (redescription)
Allonematobothrioides Yamaguti, 1970 (original description)
Allonematobothrioides scombri Yamaguti, 1970 (original description)
Allonematobothrium apharei Yamaguti, 1970 (original description)
Allonematobothrium epinepheli Yamaguti, 1965 (redescription)
Allopseudocolocyntotrema Yamaguti, 1970 (original description)
Allopseudocolocyntotrema claviforme Yamaguti, 1970 (original description)
Anamonorchiinae Yamaguti, 1970 (original description)
Anamonorchis Yamaguti, 1970 (original description)
Anamonorchis ulua Yamaguti, 1970 (original description)
Angionematobothrium Yamaguti, 1970 (original description)
Angionematobothrium jugulare Yamaguti, 1970 (original description)
Annulocystis Yamaguti, 1970 (original description)
Annulocystis auxis Yamaguti, 1970 (original description)
Aponurus priacanthi Yamaguti, 1970 (original description)
Aporocotyle pacifica Yamaguti, 1970 (original description)
Bivesicula congeri Yamaguti, 1970 accepted as Bivesicula australis Crowcroft, 1947 (original description)
Bucephalopsis arcuata (Linton, 1900) Eckmann, 1932 accepted as Prosorhynchoides arcuatus (Linton, 1900) Love & Moser, 1983 (redescription)
Bucephalopsis bipapillosa (Manter & Pritchard, 1961) Yamaguti, 1970 accepted as Dollfustrema bipapillosum Manter & Pritchard, 1961 (redescription)
Bucephalopsis bipapillosa (Manter & Pritchard, 1961) Yamaguti, 1970 accepted as Dollfustrema bipapillosum Manter & Pritchard, 1961 (new combination reference)
Bucephalopsis puhilaumilo Yamaguti, 1970 accepted as Prosorhynchoides puhilaumilo (Yamaguti, 1970) (original description)
Bucephalus carangis Yamaguti, 1970 (original description)
Bucephalus carangoides Yamaguti, 1970 accepted as Bucephalus margaritae Ozaki & Ishibashi, 1934 (original description)
Bucephalus kaku Yamaguti, 1970 accepted as Aenigmatrema kaku (Yamaguti, 1970) Corner, Cribb & Cutmore, 2020 (original description)
Bucephalus sextentaculatus Yamaguti, 1970 (original description)
Bucephalus ulua Yamaguti, 1970 accepted as Bucephalus margaritae Ozaki & Ishibashi, 1934 (original description)
Bulbocirrus Yamaguti, 1965 (additional source)
Bulbocirrus aulostomi Yamaguti, 1965 (redescription)
Bunocotyle mugilis Yamaguti, 1970 accepted as Saturnius mugilis (Yamaguti, 1970) Overstreet, 1977 (original description)
Callodistomoides Yamaguti, 1970 accepted as Steringophorus Odhner, 1905 (original description)
Callodistomoides foliatus Yamaguti, 1970 accepted as Steringophorus foliatus (Yamaguti, 1970) Bray & Gibson, 1980 (original description)
Cardicola ahi Yamaguti, 1970 (original description)
Cardicola chaetodontis Yamaguti, 1970 accepted as Elaphrobates chaetodontis (Yamaguti, 1970) Yong, Cribb & Cutmore, 2021 (original description)
Cardicola mugilis Yamaguti, 1970 (original description)
Cephalolepidapedon Yamaguti, 1970 (original description)
Cephalolepidapedon saba Yamaguti, 1970 (original description)
Cleptodiscus bulbosus Hanson, 1955 (redescription)
Coeliodidymocystis Yamaguti, 1970 accepted as Didymocystis Ariola, 1902 (original description)
Coeliodidymocystis kamegaii Yamaguti, 1970 accepted as Didymocystis kamegaii (Yamaguti, 1970) Pozdnyakov, 1996 (original description)
Colocyntotrema auxis Yamaguti, 1951 (redescription)
Cyatholecithochirium Yamaguti, 1970 (original description)
Cyatholecithochirium gymnothoracis Yamaguti, 1970 (original description)
Cypseluritrema Yamaguti, 1970 accepted as Lecithostaphylus Odhner, 1911 (original description)
Cypseluritrema spilonotopteri Yamaguti, 1970 accepted as Lecithostaphylus parexocoeti (Manter, 1947) Yamaguti, 1971 (original description)
Cypseluritrematoides Yamaguti, 1970 accepted as Brachyenteron Manter, 1934 (original description)
Cypseluritrematoides triangularis Yamaguti, 1970 accepted as Brachyenteron parexocoeti Manter, 1947 (original description)
Deontacylix kyphosi Yamaguti, 1970 (original description)
Deretrema acutum Pritchard, 1963 (redescription)
Deretrema carangis Yamaguti, 1970 accepted as Deretrema plotosi Yamaguti, 1940 (original description)
Deretrema hawaiiense Yamaguti, 1970 accepted as Deretrema acutum Pritchard, 1963 (original description)
Deretrema sphyraenae Yamaguti, 1970 accepted as Deretrema acutum Pritchard, 1963 (original description)
Deretrema uku Yamaguti, 1970 accepted as Deretrema acutum Pritchard, 1963 (original description)
Dermatodidymocystis Yamaguti, 1970 accepted as Platocystis Yamaguti, 1938 (original description)
Dermatodidymocystis vivipara Yamaguti, 1970 accepted as Platocystis vivipara (Yamaguti, 1970) Pozdnyakov, 1987 (original description)
Dermatodidymocystis viviparoides Yamaguti, 1970 accepted as Platocystis viviparoides (Yamaguti, 1970) Pozdnyakov, 1987 (original description)
Didymocodium Yamaguti, 1970 (original description)
Didymocodium euthynni Yamaguti, 1970 (original description)
Didymocylindrus filiformis Ishii, 1935 (redescription)
Didymocylindrus simplex (Ishii, 1935) Yamaguti, 1970 (redescription)
Didymocylindrus simplex (Ishii, 1935) Yamaguti, 1970 (new combination reference)
Didymocystis acanthocybii Yamaguti, 1938 (redescription)
Didymocystis bifurcata Yamaguti, 1970 (original description)
Didymocystis coatesi Nigrelli, 1939 accepted as Didymocystis acanthocybii Yamaguti, 1938 (source of synonymy)
Didymocystis irregularis Yamaguti, 1970 accepted as Didymosulcus irregularis (Yamaguti, 1970) Pozdnyakov, 1990 (original description)
Didymocystis nasalis Yamaguti, 1970 accepted as Didymosulcus nasalis (Yamaguti, 1970) Pozdnyakov, 1990 (original description)
Didymocystis orbitalis Yamaguti, 1970 accepted as Didymosulcus orbitalis (Yamaguti, 1970) Pozdnyakov, 1990 (original description)
Didymocystis palati Yamaguti, 1970 accepted as Didymosulcus palati (Yamaguti, 1970) Pozdnyakov, 1990 (original description)
Didymocystis philobranchia Yamaguti, 1970 accepted as Didymosulcus philobranchia (Yamaguti, 1970) Pozdnyakov, 1990 (original description)
Didymocystis philobranchiarca Yamaguti, 1970 accepted as Didymosulcus philobranchiarca (Yamaguti, 1970) Pozdnyakov, 1990 (original description)
Didymocystis poonui Yamaguti, 1970 accepted as Didymosulcus poonui (Yamaguti, 1970) Pozdnyakov, 1990 (original description)
Didymocystis spirocauda Yamaguti, 1970 accepted as Didymosulcus spirocauda (Yamaguti, 1970) Pozdnyakov, 1990 (original description)
Didymocystis superpalati Yamaguti, 1970 accepted as Didymosulcus superpalati (Yamaguti, 1970) Pozdnyakov, 1990 (original description)
Didymocystoides Yamaguti, 1970 accepted as Didymocystis Ariola, 1902 (original description)
Didymocystoides alalongae (Yamaguti, 1938) Yamaguti, 1970 accepted as Didymocystis alalongae Yamaguti, 1938 (new combination reference)
Didymocystoides bifasciatus Yamaguti, 1970 accepted as Didymocystis bifasciata (Yamaguti, 1970) Podznyakov, 1990 (original description)
Didymocystoides buccalis Yamaguti, 1970 accepted as Didymocystis buccalis (Yamaguti, 1970) Pozdnyakov, 1990 (original description)
Didymocystoides exiguus Yamaguti, 1970 accepted as Didymocystis exigua (Yamaguti, 1970) Podznyakov, 1990 (original description)
Didymocystoides intestinomuscularis Yamaguti, 1970 accepted as Didymocystis intestinomuscularis (Yamaguti, 1970) Pozdnyakov, 1990 (original description)
Didymocystoides oesophagicola Yamaguti, 1970 accepted as Didymocystis oesophagicola (Yamaguti, 1970) Podznyakov, 1990 (original description)
Didymocystoides opercularis (Yamaguti, 1938) Yamaguti, 1970 accepted as Didymocystis opercularis Yamaguti, 1938 (new combination reference)
Didymocystoides pectoralis Yamaguti, 1970 accepted as Didymocystis pectoralis (Yamaguti, 1970) Podznyakov, 1990 (original description)
Didymocystoides pinnicola Yamaguti, 1970 accepted as Didymocystis pinnicola (Yamaguti, 1970) Podznyakov, 1990 (original description)
Didymocystoides semiglobularis (Ishii, 1935) Yamaguti, 1970 accepted as Didymocystis semiglobularis Ishii, 1935 (new combination reference)
Didymocystoides submentalis (Yamaguti, 1938) Yamaguti, 1970 accepted as Didymocystis submentalis Yamaguti, 1938 (new combination reference)
Didymoproblema fusiforme Ishii, 1935 accepted as Didymocylindrus fusiformis (Ishii, 1935) Pozdnyakov, 1966 (redescription)
Didymozoon diverticulatum Yamaguti, 1970 (original description)
Didymozoon longicolle Ishii, 1935 (redescription)
Dinosoma hawaiiense Yamaguti, 1970 accepted as Adinosoma hawaiiense (Yamaguti, 1970) Gibson & Bray, 1979 (original description)
Dinosoma polymixiae Yamaguti, 1970 (original description)
Dinurus longisinus Looss, 1907 (redescription)