Acanthostomum gnerii Szidat, 1954 accepted as Proctocaecum gnerii (Szidat, 1954) Lamothe-Argumedo & Ponciano-Rodriguez, 1986 (redescription)
Amazonadistoma negrensis Thatcher, 1979 accepted as Amazonadistoma negrense Thatcher, 1979 (redescription)
Anavilhanatrema robusta Thatcher, 1992 accepted as Anavilhanatrema robustum Thatcher, 1992 (redescription)
Annelamphistoma elegans Thatcher, Sey & Jégu, 1996 (redescription)
Antorchis lintoni Travassos, Artigas & Pereira, 1928 (redescription)
Bacciger pellonae Thatcher, 1992 (redescription)
Bellumcorpus major Kohn, 1962 accepted as Bellumcorpus majus Kohn, 1962 (redescription)
Betamphistoma jariense Thatcher & Jégu, 1996 (redescription)
Brasicystis bennetti Thatcher, 1979 (redescription)
Caballerotrema arapaimense Thatcher, 1980 (redescription)
Caballerotrema aruanense Thatcher, 1980 (redescription)
Caballerotrema brasiliense Prudhoe, 1960 (redescription)
Chalcinotrema lucieni Brooks, 1977 (redescription)
Chalcinotrema ruedasueltensis Thatcher, 1978 accepted as Saccocoelioides ruedasueltensis (Thatcher, 1978) Curran, Pulis, Andres & Overstreet, 2018 (redescription)
Chalcinotrema salobrensis Teixeira de Freitas, 1947 accepted as Chalcinotrema salobrense Teixeira de Freitas, 1947 (additional source)
Cladocystis intestinalis Vaz, 1932 accepted as Neocladocystis intestinalis (Vaz, 1932) Manter & Pritchard, 1969 (redescription)
Colocladorchis ventrastomis Thatcher, 1979 (redescription)
Crassicutis chuscoi (Pearse, 1920) Peters, 1957 (redescription)
Crassicutis cichlasomae Manter, 1936 (redescription)
Crassicutis opisthoseminis Bravo-Hollis & Arroyo, 1962 accepted as Crassicutis cichlasomae Manter, 1936 (redescription)
Crassicutis wallini (Pearse, 1920) Peters, 1957 (redescription)
Crepidostomum macrorchis Szidat, 1954 accepted as Auriculostoma macrorchis (Szidat, 1954) Scholz, Aguirre-Macedo & Choudhury, 2004 accepted as Creptotrema macrorchis (Szidat, 1954) Franceschini, Aguiar, Zago, de Oliveira Fadel Yamada, Bertholdi Ebert & da Silva, 2021 (redescription)
Crepidostomum platense Szidat, 1954 accepted as Auriculostoma platense (Szidat, 1954) Scholz, Aguirre-Macedo & Choudhury, 2004 accepted as Creptotrema platense (Szidat, 1954) Franceschini, Aguiar, Zago, de Oliveira Fadel Yamada, Bertholdi Ebert & da Silva, 2021 (additional source)
Creptotrema creptotrema Travassos, Artigas & Pereira, 1928 (redescription)
Creptotrema dispar Teixeira de Freitas, 1941 accepted as Creptotrematina dispar (Teixeira de Freitas, 1941) Manter, 1962 (additional source)
Curimatrema microscopica Thatcher, 2000 accepted as Curimatrema microscopicum Thatcher, 2000 (redescription)
Curumai curumai Travassos, 1961 (redescription)
Dadayius marenzelleri (Daday, 1907) Fukui, 1929 (redescription)
Dadayius pacuensis Thatcher, Sey & Jégu, 1996 (redescription)
Dadaytrema elongata Vaz, 1932 accepted as Dadaytrema elongatum Vaz, 1932 accepted as Dadaytrema oxycephalum (Diesing, 1850) Vaz, 1932 (additional source)
Dadaytrema oxycephala (Diesing, 1836) Vaz, 1932 accepted as Dadaytrema oxycephalum (Diesing, 1850) Vaz, 1932 (redescription)
Dadaytremoides grandistomis Thatcher, 1979 (redescription)
Deltamphistoma pitingaense Thatcher & Jégu, 1996 (redescription)
Dendrorchis neivai Travassos, 1926 (redescription)
Denticauda quadrangulata (Daday, 1906) Fukui, 1929 (redescription)
Doradamphistoma bacuensis Thatcher, 1999 accepted as Doradamphistoma bacuense Thatcher, 1999 (redescription)
Eocreadium intermedium Szidat, 1954 accepted as Crassicutis intermedia (Szidat, 1954) Bray, de Chambrier & Vaucher, 1996 (redescription)
Gammamphistoma collaris Thatcher & Jégu, 1996 accepted as Gammamphistoma collare Thatcher & Jégu, 1996 (redescription)
Genolopa magnacirrus Thatcher, 1996 (redescription)
Glandulorhynchus turgidus Thatcher, 1999 (redescription)
Gonocercella magnifica Szidat, 1954 accepted as Thometrema magnificum (Szidat, 1954) Gibson & Bray, 1979 (redescription)
Halipegus dubius Klein, 1905 (redescription)
Halipegus genarchella (Travassos, Artigas & Pereira, 1928) Manter, 1934 accepted as Genarchella genarchella Travassos, Artigas & Pereira, 1928 (additional source)
Halipegus parvus (Travassos, Artigas & Pereira, 1928) accepted as Genarchella parva Travassos, Artigas & Pereira, 1928 (additional source)
Halipegus tropicus (Manter, 1936) Sogandares-Bernal, 1955 accepted as Genarchella genarchella Travassos, Artigas & Pereira, 1928 (additional source)
Iheringtrema iheringi Travassos, 1947 (redescription)
Inpamphistoma papillatum Thatcher, Sey & Jégu, 1996 (redescription)
Kalipharynx piramboae Boeger & Thatcher, 1983 (redescription)
Kalitrema kalitrema Travassos, 1933 (redescription)
Lecithobotrioides elongatus Thatcher, 1999 accepted as Saccocoelioides guaporense Curran, Pulis, Andres & Overstreet, 2018 (redescription)
Lecithobotrioides mediacanoensis Thatcher & Dossman M., 1974 accepted as Saccocoelioides elongatus Szidat, 1954 (redescription)
Magnivitellinum simplex Kloss, 1966 (redescription)
Megacoelium plecostomi Szidat, 1954 (additional source)
Megacoelium spinicavum Thatcher & Varella, 1981 (redescription)
Megacoelium spinispecum Thatcher & Varella, 1981 accepted as Megacoelium spinicavum Thatcher & Varella, 1981 (additional source)
Micramphistoma ministoma Thatcher, 1992 (redescription)
Myleustrema concavatum Thatcher & Jégu, 1998 (redescription)
Pacudistoma guianensis Thatcher & Jégu, 1998 accepted as Pacudistoma guianense Thatcher & Jégu, 1998 (redescription)
Pacudistoma turgida Thatcher, 1992 accepted as Pacudistoma turgidum Thatcher, 1992 (redescription)
Palaeocryptogonimus claviformis Szidat, 1954 (redescription)
Paralecithobotrys brasiliensis Teixeira de Freitas, 1948 (redescription)
Paraproctotrema delicata Thatcher, 1996 accepted as Paraproctotrema delicatum Thatcher, 1996 (redescription)
Pararhipidocotyle jeffersoni Kohn, 1970 accepted as Rhipidocotyle jeffersoni (Kohn, 1970) Overstreet & Curran, 2002 (redescription)
Parspina argentinensis (Szidat, 1954) Sogandares-Bernal, 1959 (redescription)
Paurorhynchus schubarti Kohn, 1963 accepted as Bellumcorpus schubarti (Kohn, 1963) Kohn, 1970 (redescription)
Phyllodistomoides duncani Brooks, 1977 (redescription)
Procaudotestis uruguayensis Szidat, 1954 (redescription)
Pronamphistoma cichlasomae Thatcher, 1992 (redescription)
Prosorhynchus costai Travassos, Artigas & Pereira, 1928 (additional source)
Prosorhynchus piranhus Thatcher, 1999 (redescription)
Prosthenhystera obesa (Diesing, 1850) Travassos, 1922 (redescription)
Pseudocladorchis cylindricus (Diesing, 1836) Daday, 1907 (redescription)
Pseudocladorchis ferrumequinus (Diesing, 1836) Stunkard, 1925 (additional source)
Pseudodiplodiscus cornu (Diesing, 1839) Manter, 1962 (redescription)
Pseudoparabaris parabaris (Travassos, 1922) Yamaguti, 1958 (redescription)
Rondotrema microvitellarum Thatcher, 1999 (redescription)
Saccocoelioides leporinodus Thatcher, 1978 accepted as Saccocoelioides saccodontis Thatcher, 1978 (redescription)
Saccocoelioides magniovatus Szidat, 1954 (additional source)
Saccocoelioides magnorchis Thatcher, 1978 (additional source)
Saccocoelioides nanii Szidat, 1954 (additional source)
Saccocoelioides octavus Szidat, 1970 (additional source)
Saccocoelioides quintus Thatcher, 1978 (additional source)
Saccocoelioides rotundus Thatcher & Jégu, 1996 (redescription)
Saccocoelioides saccodontis Thatcher, 1978 (redescription)
Saccocoelioides szidati Travassos, Freitas & Kohn, 1969 (additional source)
Sanguinicola argentinensis Szidat, 1951 (additional source)
Sanguinicola coelomicola (Szidat, 1951) accepted as Plehniella coelomicola Szidat, 1951 (redescription)
Sphericomonorchis spinulosus Thatcher, 1996 (redescription)
Travassosinia dilatata (Daday, 1907) Vaz, 1932 (redescription)
Unicoelium prochilodorum Thatcher & Dossman, 1975 (redescription)
Witenbergia witenbergi Vaz, 1932 (redescription)
Zetamphistoma compacta Thatcher & Jégu, 1996 accepted as Zetamphistoma compactum Thatcher & Jégu, 1996 accepted as Dadaytrema compactum (Thatcher & Jégu, 1996) Jones, 2005 (redescription)
Zonocotyle bicaecata Travassos, 1947 (redescription)
Zonocotyloides Padilha, 1978 accepted as Zonocotyle Travassos, 1947 (redescription)

Amapá for Zetamphistoma compacta Thatcher & Jégu, 1996 
Amazon River for Acanthostomum gnerii Szidat, 1954 
Amazonas for Anavilhanatrema robusta Thatcher, 1992 
Amazonas for Caballerotrema arapaimense Thatcher, 1980 
Amazonas for Caballerotrema aruanense Thatcher, 1980 
Amazonas for Caballerotrema brasiliense Prudhoe, 1960 
Amazonas for Deltamphistoma pitingaense Thatcher & Jégu, 1996 
Amazonas for Doradamphistoma bacuensis Thatcher, 1999 
Amazonas for Megacoelium spinicavum Thatcher & Varella, 1981 
Argentina for Acanthostomum gnerii Szidat, 1954 
Argentina for Crepidostomum macrorchis Szidat, 1954 
Argentina for Crepidostomum platense Szidat, 1954 
Argentina for Eocreadium intermedium Szidat, 1954 
Argentina for Gonocercella magnifica Szidat, 1954 
Argentina for Halipegus tropicus (Manter, 1936) Sogandares-Bernal, 1955 
Argentina for Megacoelium plecostomi Szidat, 1954 
Argentina for Palaeocryptogonimus claviformis Szidat, 1954 
Argentina for Parspina argentinensis (Szidat, 1954) Sogandares-Bernal, 1959 
Argentina for Saccocoelioides magniovatus Szidat, 1954 
Argentina for Saccocoelioides nanii Szidat, 1954 
Argentina for Saccocoelioides octavus Szidat, 1970 
Argentina for Saccocoelioides quintus Thatcher, 1978 
Argentina for Sanguinicola argentinensis Szidat, 1951 
Argentina for Sanguinicola coelomicola (Szidat, 1951) 
Brazil for Alphamphistoma canoeforma Thatcher & Jégu, 1996 
Brazil for Amazonadistoma negrensis Thatcher, 1979 
Brazil for Annelamphistoma elegans Thatcher, Sey & Jégu, 1996 
Brazil for Antorchis lintoni Travassos, Artigas & Pereira, 1928 
Brazil for Bellumcorpus major Kohn, 1962 
Brazil for Brasicystis bennetti Thatcher, 1979 
Brazil for Chalcinotrema salobrensis Teixeira de Freitas, 1947 
Brazil for Cladocystis intestinalis Vaz, 1932 
Brazil for Creptotrema creptotrema Travassos, Artigas & Pereira, 1928 
Brazil for Creptotrema dispar Teixeira de Freitas, 1941 
Brazil for Curumai curumai Travassos, 1961 
Brazil for Dadayius marenzelleri (Daday, 1907) Fukui, 1929 
Brazil for Dadayius pacuensis Thatcher, Sey & Jégu, 1996 
Brazil for Dadaytrema elongata Vaz, 1932 
Brazil for Dadaytrema oxycephala (Diesing, 1836) Vaz, 1932 
Brazil for Dendrorchis neivai Travassos, 1926 
Brazil for Denticauda quadrangulata (Daday, 1906) Fukui, 1929 
Brazil for Gammamphistoma collaris Thatcher & Jégu, 1996 
Brazil for Halipegus dubius Klein, 1905 
Brazil for Halipegus genarchella (Travassos, Artigas & Pereira, 1928) Manter, 1934 
Brazil for Halipegus parvus (Travassos, Artigas & Pereira, 1928) 
Brazil for Halipegus tropicus (Manter, 1936) Sogandares-Bernal, 1955 
Brazil for Inpamphistoma papillatum Thatcher, Sey & Jégu, 1996 
Brazil for Kalipharynx piramboae Boeger & Thatcher, 1983 
Brazil for Kalitrema kalitrema Travassos, 1933 
Brazil for Magnivitellinum simplex Kloss, 1966 
Brazil for Megacoelium spinispecum Thatcher & Varella, 1981 
Brazil for Paralecithobotrys brasiliensis Teixeira de Freitas, 1948 
Brazil for Pararhipidocotyle jeffersoni Kohn, 1970 
Brazil for Paurorhynchus schubarti Kohn, 1963 
Brazil for Prosorhynchus costai Travassos, Artigas & Pereira, 1928 
Brazil for Prosthenhystera obesa (Diesing, 1850) Travassos, 1922 
Brazil for Pseudocladorchis cylindricus (Diesing, 1836) Daday, 1907 
Brazil for Pseudocladorchis ferrumequinus (Diesing, 1836) Stunkard, 1925 
Brazil for Pseudodiplodiscus cornu (Diesing, 1839) Manter, 1962 
Brazil for Pseudoparabaris parabaris (Travassos, 1922) Yamaguti, 1958 
Brazil for Saccocoelioides szidati Travassos, Freitas & Kohn, 1969 
Brazil for Travassosinia dilatata (Daday, 1907) Vaz, 1932 
Brazil for Witenbergia witenbergi Vaz, 1932 
Brazil for Zonocotyle bicaecata Travassos, 1947 
Brazil for Zonocotyloides Padilha, 1978 
Brazilian Exclusive Economic Zone for Iheringtrema iheringi Travassos, 1947 
Colombia for Chalcinotrema lucieni Brooks, 1977 
Colombia for Chalcinotrema ruedasueltensis Thatcher, 1978 
Colombia for Colocladorchis ventrastomis Thatcher, 1979 
Colombia for Dadaytremoides grandistomis Thatcher, 1979 
Colombia for Lecithobotrioides mediacanoensis Thatcher & Dossman M., 1974 
Colombia for Phyllodistomoides duncani Brooks, 1977 
Colombia for Prosthenhystera obesa (Diesing, 1850) Travassos, 1922 
Colombia for Saccocoelioides leporinodus Thatcher, 1978 
Colombia for Saccocoelioides magnorchis Thatcher, 1978 
Colombia for Saccocoelioides saccodontis Thatcher, 1978 
Colombia for Unicoelium prochilodorum Thatcher & Dossman, 1975 
Costa Rica for Acanthostomum gnerii Szidat, 1954 
Costa Rica for Crassicutis cichlasomae Manter, 1936 
Costa Rica for Crassicutis opisthoseminis Bravo-Hollis & Arroyo, 1962 
Cuba for Crassicutis cichlasomae Manter, 1936 
French Guiana for Myleustrema concavatum Thatcher & Jégu, 1998 
French Guiana for Pacudistoma guianensis Thatcher & Jégu, 1998 
Mexico for Halipegus tropicus (Manter, 1936) Sogandares-Bernal, 1955 
Mexico for Prosthenhystera obesa (Diesing, 1850) Travassos, 1922 
Pará for Betamphistoma jariense Thatcher & Jégu, 1996 
Pará for Saccocoelioides rotundus Thatcher & Jégu, 1996 
Pará for Zetamphistoma compacta Thatcher & Jégu, 1996 
Rondônia for Bacciger pellonae Thatcher, 1992 
Rondônia for Curimatrema microscopica Thatcher, 2000 
Rondônia for Genolopa magnacirrus Thatcher, 1996 
Rondônia for Glandulorhynchus turgidus Thatcher, 1999 
Rondônia for Lecithobotrioides elongatus Thatcher, 1999 
Rondônia for Micramphistoma ministoma Thatcher, 1992 
Rondônia for Pacudistoma turgida Thatcher, 1992 
Rondônia for Paraproctotrema delicata Thatcher, 1996 
Rondônia for Pronamphistoma cichlasomae Thatcher, 1992 
Rondônia for Prosorhynchus piranhus Thatcher, 1999 
Rondônia for Rondotrema microvitellarum Thatcher, 1999 
Rondônia for Sphericomonorchis spinulosus Thatcher, 1996