• Accacladocoelium alveolatum Robinson, 1934
• Accacladocoelium macrocotyle (Diesing, 1858) Robinson, 1934
• Accacladocoelium nigroflavum (Rudolphi, 1819) Robinson, 1934
• Accacladocoelium petasiporum Odhner, 1928
• Accacoelium contortum (Rudolphi, 1819) Looss, 1899
• Adinosoma hawaiiense (Yamaguti, 1970) Gibson & Bray, 1979
• Adinosoma robusta (Manter, 1934) Manter, 1947
• Allopseudocolocyntotrema alioshkini Pozdnyakov, 1994
• Aphanurus stossichii (Monticelli, 1891) Looss, 1907
• Aponurus galeatus (Looss, 1907)
• Aponurus laguncula Looss, 1907
• Aponurus mulli Carreras-Aubets, Repulles-Albelda, Kostadinova & Carrasson, 2011
• Aponurus tschugunovi Issaitschikov, 1927
• Arnola microcirrus (Vlasenko, 1931) Yamaguti, 1958
• Botulus microporus (Monticelli, 1889) Gibson & Bray, 1977
• Brachyphallus crenatus (Rudolphi, 1802) Odhner, 1905
• Bunocotyle cingulata Odhner, 1928
• Bunocotyle progenetica (Markowski, 1936) Chabaud & Buttner, 1959
• Ceratotrema furcolabiatum Jones, 1933 accepted as Lecithochirium furcolabiatum (Jones, 1933) Dawes, 1947
• Coeliotrema thynni Yamaguti, 1938
• Copiatestes filiferus (Leuckart in Sars, 1885) Gibson & Bray, 1977
• Derogenes adriaticus Nikolaeva, 1966
• Derogenes affinis (Rudolphi, 1819) Lühe, 1901
• Derogenes bonnieri (Monticelli, 1893)
• Derogenes cacozelus Nicoll, 1907 accepted as Lecithaster gibbosus (Rudolphi, 1802) Lühe, 1901
• Derogenes crassus Manter, 1934
• Derogenes fuhrmanni Mola, 1912
• Derogenes latus Janiszewska, 1953
• Derogenes macrouri Szuks, 1981
• Derogenes minor Looss, 1901
• Derogenes ruber Lühe, 1900
• Derogenes varicus (Müller, 1784) Looss, 1901
• Derogenoides ovacutus Nicoll, 1913
• Didymocystis lanceolata Guiart, 1938 accepted as Didymosulcus lanceolatus (Guiart, 1938) Pozdnyakov, 1990
• Didymocystis macrorchis Guiart, 1938 accepted as Didymosulcus macrorchis (Guiart, 1938) Pozdnyakov, 1990
• Didymocystis philobranchia Yamaguti, 1970 accepted as Didymosulcus philobranchia (Yamaguti, 1970) Pozdnyakov, 1990
• Didymocystis reniformis Ariola, 1902
• Didymocystis thynni (Taschenberg, 1879) Dollfus, 1926
• Didymocystis xiphiados (MacCallum & MacCallum, 1916) accepted as Maccallumtrema xiphiados (MacCallum & MacCallum, 1916) Yamaguti, 1970
• Didymodiclinus branchialis (Yamaguti, 1970) Pozdnyakov, 1994
• Didymodiclinus facialis (Baylis, 1938) Pozdnyakov, 1996
• Didymodiclinus marginati Mele, De Benedetto, Giannetto, Riolo, Oliva, Reñones, Garippa, Merella & Gaglio, 2022
• Didymodiclinus spilonotopteri (Yamaguti, 1970) Pozdnyakov, 1994
• Didymosulcus lanceolatus (Guiart, 1938) Pozdnyakov, 1990
• Didymosulcus macrorchis (Guiart, 1938) Pozdnyakov, 1990
• Didymosulcus philobranchia (Yamaguti, 1970) Pozdnyakov, 1990
• Didymosulcus wedli (Ariola, 1902) (uncertain > taxon inquirendum)
• Didymozoon auxis Taschenberg, 1879
• Didymozoon pretiosus Ariola, 1902
• Didymozoon serrani Monticelli, 1889 (uncertain > taxon inquirendum)
• Didymozoon sphyraenae Taschenberg, 1879
• Didymozoon taenioides Monticelli, 1883 (uncertain > taxon inquirendum)
• Dinosoma hawaiiense Yamaguti, 1970 accepted as Adinosoma hawaiiense (Yamaguti, 1970) Gibson & Bray, 1979
• Dinosoma thoria Nikolaeva, 1966 accepted as Glomericirrus thoria (Nikolaeva, 1966) Gibson & Bray, 1986
• Dinosoma triangulata Campbell & Munroe, 1977 accepted as Dinosoma triangulatum Campbell & Munroe, 1977
• Dinosoma triangulatum Campbell & Munroe, 1977
• Dinosoma ventrovesiculare Gibson & Bray, 1986
• Dinosoma ventrovesicularis Gibson & Bray, 1986 accepted as Dinosoma ventrovesiculare Gibson & Bray, 1986
• Dinurus breviductus Looss, 1907
• Dinurus scombri Yamaguti, 1934
• Dinurus tornatus (Rudolphi, 1819) Looss, 1907
• Ectenurus lepidocybii Yamaguti, 1970
• Ectenurus lepidus Looss, 1907
• Ectenurus trachuri Nikolaeva & Kovaleva, 1966 accepted as Ectenurus lepidus Looss, 1907
• Ectenurus virgula Linton, 1910
• Genolinea laticauda Manter, 1925
• Glomericirrus macrouri (Gaevskaja, 1973) Gaevskaja, 1979
• Glomericirrus thoria (Nikolaeva, 1966) Gibson & Bray, 1986
• Gonapodasmius branchialis Yamaguti, 1970 accepted as Didymodiclinus branchialis (Yamaguti, 1970) Pozdnyakov, 1994
• Gonapodasmius spilonotopteri Yamaguti, 1970 accepted as Didymodiclinus spilonotopteri (Yamaguti, 1970) Pozdnyakov, 1994
• Gonocerca macrouri Gaevskaya, 1975 accepted as Gonocerca phycidis Manter, 1925
• Gonocerca phycidis Manter, 1925
• Halvorsenius exilis Gibson, MacKenzie & Cottle, 1981
• Hemipera ovocaudata Nicoll, 1913
• Hemipera sharpei Jones, 1933
• Hemiurus appendiculatus (Rudolphi, 1802) Looss, 1899
• Hemiurus communis Odhner, 1905
• Hemiurus levinseni Odhner, 1905
• Hemiurus luehei Odhner, 1905
• Hemiurus ocreatus (Rudolphi, 1802) Odhner, 1911 accepted as Hemiurus luehei Odhner, 1905
• Hirudinella ventricosa (Pallas, 1774) Baird, 1853
• Hysterolecitha nahaensis Yamaguti, 1942
• Kenmackenzia gigas (Nardo, 1827) Gibson, 1983
• Koellikeria benedenii (Monticelli, 1893) MacCallum & MacCallum, 1916 accepted as Nematobothrium benedenii (Monticelli, 1893) Maclaren, 1904
• Koellikeria bipartita (Wedl, 1855) accepted as Wedlia bipartita (Wedl, 1855) Cobbold, 1860
• Koellikeria exocoeti (Parona & Perugia, 1893) MacCallum & MacCallum, 1916 (uncertain > taxon inquirendum)
• Koellikeria filicollis (Rudolphi, 1819) Cobbold, 1860
• Koellikeria micropterygis (Richiardi, 1901) MacCallum & MacCallum, 1916
• Koellikeria okenii (Koelliker, 1847) Ariola, 1906 accepted as Koellikeria filicollis (Rudolphi, 1819) Cobbold, 1860
• Koellikerioides orientalis (Yamaguti, 1934) Pozdnyakov, 1992
• Lampritrema meischeri (Zschokke, 1890) accepted as Lampritrema miescheri (Zschokke, 1890) Margolis, 1962
• Lampritrema miescheri (Zschokke, 1890) Margolis, 1962
• Lecithaster atherinae Orecchia, Paggi & Radujkovic, 1988
• Lecithaster confusus Odhner, 1905
• Lecithaster galeatus Looss, 1907 accepted as Aponurus galeatus (Looss, 1907)
• Lecithaster gibbosus (Rudolphi, 1802) Lühe, 1901
• Lecithaster stellatus Looss, 1907
• Lecithochirium branchiale (Stunkard & Nigrelli, 1934) Skrjabin & Guschanskaja, 1955
• Lecithochirium caudiporum (Rudolphi, 1819) Lühe, 1901 accepted as Synaptobothrium caudiporum (Rudolphi, 1819) Looss, 1907
• Lecithochirium furcolabiatum (Jones, 1933) Dawes, 1947