Acanthocolpidae Lühe, 1906 (biology source)
Acanthostomum floridense (McCoy, 1928) Price, 1940 (redescription)
Accacoeliinae Odhner, 1911 (biology source)
Acetodextra amiuri (Stafford, 1900) Pearse, 1924 (biology source)
Allocreadium isoporum (Looss, 1894) Looss, 1902 (redescription)
Allocreadium lobatum Wallin, 1909 (biology source)
Alloglossidium corti (Lamont, 1921) Van Cleave & Mueller, 1934 (redescription)
Alloglossidium hirudicola Schmidt & Chaloupka, 1969 (biology source)
Aphallus tubarium (Rudolphi, 1819) Poche, 1926 (biology source)
Apharyngolevinseniella Yamaguti, 1975 accepted as Levinseniella Ward, 1901 (original description)
Apharyngolevinseniella capitanea (Overstreet & Perry, 1972) Yamaguti, 1975 accepted as Levinseniella capitanea Overstreet & Perry, 1972 accepted as Levinseniella (Monarrhenos) capitanea Overstreet & Perry, 1972 (new combination reference)
Asymphylodora amnicolae Stunkard, 1959 (redescription)
Asymphylodora dollfusi Biguet, Deblock & Capron, 1956 (redescription)
Asymphylodora progenetica Serkova & Bykhowskii, 1940 (redescription)
Asymphylodora tincae (Modeer, 1790) Lühe, 1909 (redescription)
Azygia acuminata Goldberger, 1911 (redescription)
Azygia longa (Leidy, 1852) Manter, 1926 (redescription)
Azygia lucii (Müller, 1776) Lühe, 1909 (redescription)
Azygia sebago Ward, 1910 accepted as Azygia longa (Leidy, 1852) Manter, 1926 (redescription)
Bacciger bacciger (Rudolphi, 1819) Nicoll, 1914 (redescription)
Bivesicula caribbensis Cable & Nahhas, 1962 (redescription)
Bivesiculidae Yamaguti, 1934 (biology source)
Bucephalopsis clara Komiya, 1943 accepted as Prosorhynchoides clara (Komiya, 1943) (redescription)
Bucephalopsis gracilescens (Rudolphi, 1819) Nicoll, 1914 accepted as Prosorhynchoides gracilescens (Rudolphi, 1819) Stunkard, 1976 (biology source)
Bucephalopsis haimeanus (Lacaze-Duthiers, 1854) Nicoll, 1914 accepted as Prosorhynchoides haimeana (Lacaze-Duthiers, 1854) (redescription)
Bucephalopsis pusilla (Stafford, 1904) Eckmann, 1932 accepted as Bucephalopsis pusillus (Stafford, 1904) accepted as Prosorhynchoides pusillus (Stafford, 1904) Margolis & Arthur, 1979 (redescription)
Bucephalus cuculus McCrady, 1874 accepted as Prosorhynchoides haimeana (Lacaze-Duthiers, 1854) (redescription)
Bucephalus elegans Woodhead, 1930 (redescription)
Bucephalus loeschi Hopkins, 1958 (biology source)
Bucephalus longicornutus (Manter, 1954) Howell, 1966 accepted as Alcicornis longicornutus Manter, 1954 (redescription)
Bucephalus mytili Cole, 1935 (redescription)
Bucephalus polymorphus von Baer, 1827 (biology source)
Bunocotyle cingulata Odhner, 1928 (redescription)
Bunodera luciopercae (Müller, 1776) Lühe, 1909 (redescription)
Bunoderella metteri Schell, 1964 (redescription)
Bunoderina eucaliae Miller, 1936 accepted as Bunodera eucaliae (Miller, 1936) Miller, 1940 (redescription)
Burnellus trichofurcatus (Johnston & Angel, 1940) Angel, 1971 accepted as Monodhelmis trichofurcata (Johnston & Angel, 1940) Cribb & Bray, 1994 (biology source)
Caecincola parvulus Marshall & Gilbert, 1905 (redescription)
Cainocreadium gulella (Linton, 1910) Durio & Manter, 1968 (biology source)
Cardicola alseae Meade & Pratt, 1965 (redescription)
Cardicola klamathensis (Wales, 1958) Meade & Pratt, 1965 (redescription)
Cephalogonimus americanus Stafford, 1902 (redescription)
Cercaria apalachiensis Holliman, 1961 (redescription)
Cercaria asymmetrica Holliman, 1961 (redescription)
Cercaria caribbea LIII of Cable (1963) (redescription)
Cercaria caribbea LX of Cable (1963) (redescription)
Cercaria coronanda Rothschild, 1938 accepted as Acanthostomum coronandum (Rothschild, 1938) Price, 1940 (biology source)
Cercaria cristulata Holliman, 1961 (redescription)
Cercaria fimbriata Holliman, 1961 (redescription)
Cercaria fragosa Holliman, 1961 (redescription)
Cercaria imbecilla Holliman, 1961 (redescription)
Cercaria loossi Stunkard, 1929 (redescription)
Cercaria pusilla Holliman, 1961 (redescription)
Chione gallina (Linnaeus, 1758) accepted as Chamelea gallina (Linnaeus, 1758) (basis of record)
Coitocaecum anaspidis Hickman, 1934 (redescription)
Crepidostomum cooperi Hopkins, 1932 (redescription)
Crepidostomum cornutum (Osborn, 1903) Stafford, 1904 (redescription)
Crepidostomum farionis (Müller, 1780) Lühe, 1909 (redescription)
Crepidostomum metoecus (Braun, 1900) Braun, 1900 (biology source)
Cryptogonimus chili Osborn, 1903 (biology source)
Derogenes varicus (Müller, 1784) Looss, 1901 (redescription)
Deropristis inflata (Molin, 1859) Odhner, 1902 (redescription)
Didymozoidae Monticelli, 1888 (biology source)
Diphterostomum brusinae (Stossich, 1888) Stossich, 1904 (redescription)
Diplodiscus amphichrus Tubangui, 1933 (biology source)
Diplodiscus japonicus Yamaguti, 1936 (biology source)
Diplodiscus subclavatus (Goeze, 1782) Diesing, 1836 (redescription)
Dollfustrema echinatum (Komiya & Tajimi, 1941) Skrjabin & Guschanskaja, 1962 accepted as Dollfustrema vaneyi (Tseng, 1930) Nagaty, 1937 (redescription)
Exorchis oviformis Kobayashi, 1921 (redescription)
Fellodistomum fellis (Olsson, 1868) Nicoll, 1909 (redescription)
Fellodistomum furcigerum (Olsson, 1868) Yamaguti, 1953 accepted as Steringophorus furciger (Olsson, 1868) Odhner, 1905 (redescription)
Genarchella genarchella Travassos, Artigas & Pereira, 1928 (redescription)
Genarchopsis muelleri (Levinsen, 1881) Yamaguti, 1954 accepted as Progonus muelleri (Levinsen, 1881) Looss, 1899 (biology source)
Genolopa Linton, 1910 (biology source)
Glypthelmins hyloreus Martin, 1969 (redescription)
Glypthelmins pennsylvaniensis Cheng, 1961 (redescription)
Glypthelmins quieta (Stafford, 1900) Stafford, 1905 (redescription)
Gorgodera amplicava Looss, 1899 (redescription)
Gorgodera pagenstecheri Sinitsin, 1905 (redescription)
Gorgodera varsoviensis Sinitsin, 1905 (redescription)
Gorgodera vivata Hunt, 1932 (redescription)
Gorgoderina attenuata (Stafford, 1902) Stafford 1905 (redescription)
Gorgoderina bufonis (Frandsen, 1957) Yamaguti, 1971 (redescription)
Haematoloechus asper Looss, 1899 (redescription)
Haematoloechus bombynae (Zeder, 1800) Yamaguti, 1971 (redescription)
Haematoloechus breviplexus Stafford, 1902 (redescription)
Haematoloechus complexus (Seely, 1906) Krull, 1933 (redescription)
Haematoloechus longiplexus Stafford, 1902 (biology source)
Haematoloechus medioplexus Stafford, 1902 (redescription)
Haematoloechus merchanti (Rankin, 1939) Yamaguti, 1971 (redescription)
Haematoloechus oxyorchis Ingles, 1932 (redescription)
Haematoloechus parviplexus (Irwin, 1929) Harwood, 1932 (redescription)
Haematoloechus similis (Looss, 1899) Looss, 1899 (redescription)
Haematoloechus variegatus (Rudolphi, 1819) Looss, 1899 (biology source)
Hamacreadium mutabile Linton, 1910 (biology source)
Hapladena varia Linton, 1910 (redescription)
Haplometra cylindracea (Zeder, 1800) Looss, 1899 (redescription)
Haplometrana utahensis Olsen, 1937 (redescription)
Hemiuridae Looss, 1899 (biology source)
Hemiurus communis Odhner, 1905 (redescription)

Japan for Megalophallus miyazakii Yamaguti, 1975