• Anisocladium fallax (Rudolphi, 1819) Looss, 1902
• Anisocladium gracile (Looss, 1901) Vlasenko, 1931
• Anisocoelium capitellatum (Rudolphi, 1819) Lühe, 1900
• Aphalloides coelomicola Dollfus, Chabaud & Golvan, 1957
• Aphallus tubarium (Rudolphi, 1819) Poche, 1926
• Aphanurus stossichii (Monticelli, 1891) Looss, 1907
• Aponurus galeatus (Looss, 1907)
• Ascocotyle longa Ransom, 1920
• Ascocotyle sinoecum (Ciurea, 1933) Sogandares-Bernal & Lumsden, 1963
• Bucephalus marinus Vlasenko, 1931
• Bunocotyle cingulata Odhner, 1928
• Condylocotyla pilodora Pearson & Prévot, 1985
• Cryptocotyle concava (Creplin, 1825) Lühe, 1899
• Dicrogaster contracta Looss, 1902
• Diplostomum pseudospathaceum Niewiadomska, 1984
• Diplostomum rutili Razmashkin, 1969
• Diplostomum spathaceum (Rudolphi, 1819) Olsson, 1876
• Gaevskajatrema perezi (Mathias, 1926) Gibson & Bray, 1982
• Gaevskajatrema ponticum (Koval, 1966) Machkevsky, 1990 accepted as Gaevskajatrema perezi (Mathias, 1926) Gibson & Bray, 1982
• Galactosomum lacteum (Jägerskiöld, 1896) Looss, 1899
• Galactosomum phalacrocoracis Yamaguti, 1939
• Haploporus benedenii (Stossich, 1887) Looss, 1902
• Haploporus lateralis Looss, 1902 accepted as Haploporus benedenii (Stossich, 1887) Looss, 1902
• Haplosplanchnus pachysoma (Eysenhardt, 1829) Looss, 1902
• Haplosplanchnus pachysomus (Eysenhardt, 1829) Looss, 1902 accepted as Haplosplanchnus pachysoma (Eysenhardt, 1829) Looss, 1902
• Helicometra fasciata (Rudolphi, 1819) Odhner, 1902
• Helicometra insolita Polyanski, 1955
• Lecithaster galeatus Looss, 1907 accepted as Aponurus galeatus (Looss, 1907)
• Lecithochirium musculus (Looss, 1907) Nasir & Diaz, 1971
• Lecithochirium rufoviride (Rudolphi, 1819) Lühe, 1901
• Magnibursatus blennii (Paggi & Orecchia, 1975) Kostadinova, Bartoli, Gibson & Raga, 2004
• Metadena pauli (Vlasenko, 1931) Yamaguti, 1958
• Monascus filiformis (Rudolphi, 1819) Looss, 1907
• Monorchis monorchis (Stossich, 1890) Looss, 1902
• Peracreadium genu (Rudolphi, 1819) Nicoll, 1909
• Phyllodistomum acceptum Looss, 1901
• Phyllodistomum crenilabri Dolgikh & Naidenova, 1968
• Proctoeces maculatus (Looss, 1901) Odhner, 1911
• Proctotrema bacilliovatum Odhner, 1911
• Prodistomum polonii (Molin, 1859) Bray & Gibson, 1990
• Pseudonotocotylus atlanticus (Stunkard, 1966) Izrailskaia, Tatonova & Belousova, 2024
• Pygidiopsis genata Looss, 1907
• Saccocoelium obesum Looss, 1902
• Saccocoelium tensum Looss, 1902
• Saturnius papernai Overstreet, 1977
• Schikhobalotrema sparisomae (Manter, 1938) Skrjabin & Guschanskaja, 1955
• Timoniella imbutiforme (Molin, 1859) Brooks, 1980 accepted as Timoniella imbutiformis (Molin, 1859) Brooks, 1980
• Timoniella imbutiformis (Molin, 1859) Brooks, 1980
• Tylodelphys clavata (von Nordmann, 1832) Diesing, 1850