Atalostrophion MacCallum, 1915 (identification resource)
Atalostrophion (Maccallozoum) Ishii, 1935 accepted as Maccallozoum Ishii, 1935 (identification resource)
Atalostrophion (Maccallozoum) epinepheli Ishii, 1935 accepted as Maccallozoum epinepheli (MacCallum, 1917) Ishii, 1935 (additional source)
Atalostrophion biovarium Skrjabin, 1955 accepted as Procerozoum biovarium (Skrjabin, 1955) Pozdyakov, 1996 (original description)
Atalostrophion promicrops MacCallum, 1915 (additional source)
Atalostrophion sardae MacCallum, 1915 (redescription)
Coeliotrema Yamaguti, 1938 (identification resource)
Coeliotrema thynni Yamaguti, 1938 (redescription)
Didymocylindrus Ishii, 1935 (identification resource)
Didymocylindrus filiformis Ishii, 1935 (redescription)
Didymocystis Ariola, 1902 (identification resource)
Didymocystis abdominalis Yamaguti, 1938 (redescription)
Didymocystis acanthocybii Yamaguti, 1938 (redescription)
Didymocystis alalongae Yamaguti, 1938 (redescription)
Didymocystis bilobata Ishii, 1935 (redescription)
Didymocystis coatesi Nigrelli, 1939 accepted as Didymocystis acanthocybii Yamaguti, 1938 (redescription)
Didymocystis crassa Ishii, 1935 (redescription)
Didymocystis dissimilis Yamaguti, 1938 accepted as Oesophagocystis dissimilis (Yamaguti, 1938) Yamaguti, 1970 (redescription)
Didymocystis miliaris Yamaguti, 1938 (redescription)
Didymocystis opercularis Yamaguti, 1938 (redescription)
Didymocystis ovata Ishii, 1935 (redescription)
Didymocystis scomberomori (MacCallum & MacCallum, 1916) Pozdnyakov, 1990 (redescription)
Didymocystis semiglobularis Ishii, 1935 (redescription)
Didymocystis simplex Ishii, 1935 accepted as Didymocylindrus simplex (Ishii, 1935) Yamaguti, 1970 (redescription)
Didymocystis soleiformis Ishii, 1935 accepted as Didymosulcus soleiformis (Ishii, 1935) (redescription)
Didymocystis submentalis Yamaguti, 1938 (redescription)
Didymocystis thynni (Taschenberg, 1879) Dollfus, 1926 (redescription)
Didymocystis wedli Ariola, 1902 accepted as Didymosulcus wedli (Ariola, 1902) (redescription)
Didymocystis xiphiados (MacCallum & MacCallum, 1916) accepted as Maccallumtrema xiphiados (MacCallum & MacCallum, 1916) Yamaguti, 1970 (redescription)
Didymoproblema Ishii, 1935 accepted as Didymocylindrus Ishii, 1935 (identification resource)
Didymoproblema fusiforme Ishii, 1935 accepted as Didymocylindrus fusiformis (Ishii, 1935) Pozdnyakov, 1966 (redescription)
Didymozoata accepted as Hemiurata (identification resource)
Didymozoidae Monticelli, 1888 (identification resource)
Didymozoon Taschenberg, 1879 (identification resource)
Didymozoon auxis Taschenberg, 1879 (redescription)
Didymozoon branchiale Yamaguti, 1938 accepted as Indodidymozoon branchiale (Yamaguti, 1938) Anderson & Cribb, 1994 (redescription)
Didymozoon brevicolle Yamaguti, 1938 accepted as Indodidymozoon brevicolle (Yamaguti, 1938) Anderson & Cribb, 1994 (redescription)
Didymozoon filicolle Ishii, 1935 (redescription)
Didymozoon koti Yamaguti, 1938 accepted as Indodidymozoon koti (Yamaguti, 1938) Anderson & Cribb, 1994 (redescription)
Didymozoon longicolle Ishii, 1935 (redescription)
Didymozoon minor Yamaguti, 1934 (redescription)
Didymozoon pretiosus Ariola, 1902 (redescription)
Didymozoon serrani Monticelli, 1889 (additional source)
Didymozoon sphyraenae Taschenberg, 1879 (additional source)
Didymozoon spirale Yamaguti, 1938 accepted as Helicodidymozoon spirale (Yamaguti, 1938) Anderson & Cribb, 1994 (redescription)
Diplotrema Yamaguti, 1938 accepted as Neodiplotrema Yamaguti, 1938 (identification resource)
Diplotrema pelamydis Yamaguti, 1938 accepted as Neodiplotrema pelamydis (Yamaguti, 1938) Yamaguti, 1970 (redescription)
Glomeritrema Yamaguti, 1942 (additional source)
Gonapodasmiinae Ishii, 1935 (identification resource)
Gonapodasmius Ishii, 1935 (identification resource)
Gonapodasmius cypseluri Yamaguti, 1940 accepted as Didymodiclinus cypseluri (Yamaguti, 1940) Pozdnyakov, 1994 (redescription)
Gonapodasmius haemuli (MacCallum & MacCallum, 1916) Ishii, 1935 (redescription)
Gonapodasmius okushimai Ishii, 1935 accepted as Paragonapodasmius okushimae (Ishii, 1935) Pozdnyakov, 1994 (redescription)
Gonapodasmius pacificus Yamaguti, 1938 accepted as Didymodiclinus pacificus (Yamaguti, 1938) Pozdnyakov, 1993 (redescription)
Koellikeria Cobbold, 1860 (identification resource)
Koellikeria filicollis (Rudolphi, 1819) Cobbold, 1860 (redescription)
Koellikeriinae Ishii, 1935 (identification resource)
Lobatozoum Ishii, 1935 (identification resource)
Lobatozoum multisacculatum Ishii, 1935 (redescription)
Metanematobothrium Yamaguti, 1938 (identification resource)
Metanematobothrium guernei (Moniez, 1891) Yamaguti, 1938 (redescription)
Nematobothriinae Ishii, 1935 (identification resource)
Nematobothrium van Beneden, 1858 (identification resource)
Nematobothrium (Maclarenozoum) Ishii, 1935 accepted as Nematobothrium van Beneden, 1858 (identification resource)
Nematobothrium (Maclarenozoum) lampridis Yamaguti, 1940 accepted as Nematobothrium lampridis Yamaguti, 1940 accepted as Metadidymocystis lampridis (Yamaguti, 1940) Pozdnyakov, 1996 (redescription)
Nematobothrium (Maclarenozoum) molae (Maclaren, 1903) Ishii, 1935 accepted as Nematobothrium molae Maclaren, 1904 (redescription)
Nematobothrium (Maclarenozoum) pristipomatis Yamaguti, 1934 accepted as Nematobothrium pristipomatis Yamaguti, 1934 accepted as Didymodiclinus pristipomatis (Yamaguti, 1934) Pozdnyakov, 1994 (redescription)
Nematobothrium faciale (Baylis, 1938) Skrjabin, 1955 accepted as Didymodiclinus facialis (Baylis, 1938) Pozdnyakov, 1996 (redescription)
Nematobothrium faciale (Baylis, 1938) Skrjabin, 1955 accepted as Didymodiclinus facialis (Baylis, 1938) Pozdnyakov, 1996 (new combination reference)
Nematobothrium filarina Van Beneden, 1858 (redescription)
Nematobothrium filiforme Yamaguti, 1934 (redescription)
Nematobothrium okujimai Dollfus, 1935 (additional source)
Nematobothrium pelamydis (Taschenberg, 1879) Ishii, 1935 accepted as Unitubulotestis pelamydis (Taschenburg, 1879) Nikolaeva, 1980 (redescription)
Nematobothrium sabae Ishii, 1935 accepted as Nematobothrium filiforme Yamaguti, 1934 (redescription)
Nematobothrium sardae MacCallum & MacCallum, 1916 accepted as Unitubulotestis pelamydis (Taschenburg, 1879) Nikolaeva, 1980 (redescription)
Nematobothrium scombri (Taschenberg, 1879) Ishii, 1935 (redescription)
Paragonapodasmius Yamaguti, 1938 (identification resource)
Paragonapodasmius managatuwo Yamaguti, 1938 (redescription)
Philopinna Yamaguti, 1936 (identification resource)
Philopinna higai Yamaguti, 1936 (redescription)
Philopinninae Skrjabin, 1955 accepted as Nematobothriinae Ishii, 1935 (original description)
Platocystis Yamaguti, 1938 (identification resource)
Platocystis alalongae Yamaguti, 1938 (redescription)
Tricharrhen Poche, 1926 accepted as Koellikeria Cobbold, 1860 (identification resource)
Tricharrhen okenii (Koelliker, 1847) Poche, 1926 accepted as Koellikeria okenii (Koelliker, 1847) Ariola, 1906 accepted as Koellikeria filicollis (Rudolphi, 1819) Cobbold, 1860 (additional source)
Wedlia Cobbold, 1860 (identification resource)
Wedlia bipartita (Wedl, 1855) Cobbold, 1860 (redescription)
Wedlia globosa Ishii, 1935 (redescription)
Wedlia orientalis Yamaguti, 1934 accepted as Koellikerioides orientalis (Yamaguti, 1934) Pozdnyakov, 1992 (redescription)
Wedlia reniformis Ishii, 1935 (redescription)

Adriatic Sea for Wedlia bipartita (Wedl, 1855) Cobbold, 1860 
Algerian Exclusive Economic Zone for Didymocystis wedli Ariola, 1902 
Algerian Exclusive Economic Zone for Nematobothrium (Maclarenozoum) molae (Maclaren, 1903) Ishii, 1935 
Algerian Exclusive Economic Zone for Nematobothrium pelamydis (Taschenberg, 1879) Ishii, 1935 
Bay of Naples (Italy) for Didymozoon serrani Monticelli, 1889 
Bulgarian part of the Black Sea for Nematobothrium sardae MacCallum & MacCallum, 1916 
English Coast for Nematobothrium faciale (Baylis, 1938) Skrjabin, 1955 
Floridian for Didymocystis coatesi Nigrelli, 1939 
Italian Exclusive Economic Zone for Didymocystis thynni (Taschenberg, 1879) Dollfus, 1926 
Italian Exclusive Economic Zone for Didymocystis wedli Ariola, 1902 
Italian Exclusive Economic Zone for Didymozoon pretiosus Ariola, 1902 
Italian Exclusive Economic Zone for Nematobothrium (Maclarenozoum) molae (Maclaren, 1903) Ishii, 1935 
Italian Exclusive Economic Zone for Nematobothrium faciale (Baylis, 1938) Skrjabin, 1955 
Italian Exclusive Economic Zone for Tricharrhen okenii (Koelliker, 1847) Poche, 1926 
Japan for Philopinna higai Yamaguti, 1936 
Japanese Exclusive Economic Zone for Atalostrophion biovarium Skrjabin, 1955 
Japanese Exclusive Economic Zone for Didymocylindrus filiformis Ishii, 1935 
Japanese Exclusive Economic Zone for Didymocystis abdominalis Yamaguti, 1938 
Japanese Exclusive Economic Zone for Didymocystis alalongae Yamaguti, 1938 
Japanese Exclusive Economic Zone for Didymocystis bilobata Ishii, 1935 
Japanese Exclusive Economic Zone for Didymocystis crassa Ishii, 1935 
Japanese Exclusive Economic Zone for Didymocystis opercularis Yamaguti, 1938 
Japanese Exclusive Economic Zone for Didymocystis ovata Ishii, 1935 
Japanese Exclusive Economic Zone for Didymocystis semiglobularis Ishii, 1935 
Japanese Exclusive Economic Zone for Didymocystis simplex Ishii, 1935 
Japanese Exclusive Economic Zone for Didymocystis soleiformis Ishii, 1935 
Japanese Exclusive Economic Zone for Didymocystis thynni (Taschenberg, 1879) Dollfus, 1926 
Japanese Exclusive Economic Zone for Didymocystis wedli Ariola, 1902 
Japanese Exclusive Economic Zone for Didymoproblema fusiforme Ishii, 1935 
Japanese Exclusive Economic Zone for Didymozoon brevicolle Yamaguti, 1938 
Japanese Exclusive Economic Zone for Didymozoon filicolle Ishii, 1935 
Japanese Exclusive Economic Zone for Didymozoon koti Yamaguti, 1938 
Japanese Exclusive Economic Zone for Didymozoon longicolle Ishii, 1935 
Japanese Exclusive Economic Zone for Didymozoon minor Yamaguti, 1934 
Japanese Exclusive Economic Zone for Didymozoon spirale Yamaguti, 1938 
Japanese Exclusive Economic Zone for Gonapodasmius cypseluri Yamaguti, 1940 
Japanese Exclusive Economic Zone for Gonapodasmius okushimai Ishii, 1935 
Japanese Exclusive Economic Zone for Lobatozoum multisacculatum Ishii, 1935 
Japanese Exclusive Economic Zone for Nematobothrium (Maclarenozoum) pristipomatis Yamaguti, 1934 
Japanese Exclusive Economic Zone for Nematobothrium filiforme Yamaguti, 1934 
Japanese Exclusive Economic Zone for Nematobothrium okujimai Dollfus, 1935 
Japanese Exclusive Economic Zone for Nematobothrium sabae Ishii, 1935 
Japanese Exclusive Economic Zone for Paragonapodasmius managatuwo Yamaguti, 1938 
Japanese Exclusive Economic Zone for Platocystis alalongae Yamaguti, 1938 
Japanese Exclusive Economic Zone for Wedlia globosa Ishii, 1935 
Japanese Exclusive Economic Zone for Wedlia orientalis Yamaguti, 1934 
Japanese Exclusive Economic Zone for Wedlia reniformis Ishii, 1935 
Mediterranean Sea for Koellikeria filicollis (Rudolphi, 1819) Cobbold, 1860 
North Sea for Koellikeria filicollis (Rudolphi, 1819) Cobbold, 1860 
Swedish Exclusive Economic Zone for Nematobothrium faciale (Baylis, 1938) Skrjabin, 1955