Trematoda Rudolphi, 1808
Classification
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Platyhelminthes
- Trematoda Rudolphi, 1808
Abyssotrema Campbell, 1975
Acanthocephala Diesing, 1858
Acanthocreadium Mikailov, 1969
Acanthodiscus MacCallum, 1918
Acanthogalea Gibson, 1976
Acanthopsolus Odhner, 1905
Acanthostomidae
Acanthostomoides Szidat, 1956
Acanthuritrema Yamaguti, 1970
Accessorius Jara, An & Cone, 1991
Acerointestinecola Jahan, 1970
Achillurbainia Dollfus, 1939
Achoerus Wlassenko, 1931
Acrodactyla Stafford, 1904
Adenicola Mamaev & Parukhin, 1972
Adenodiplostomum Dubois, 1937
Aequistoma Beaver, 1942
Afrobilharzia Le Roux, 1958
Afrocleidodiscus Paperna, 1969
Afrodiplozoon Khotenovsky, 1981
Afromacroderoides Khalil, 1972
Agamodistoma Railliet, 1893
Agamodistomum Stossich, 1892
Agrawalotrema Sahay & Sahay, 1988
Ahemiuris Chauhan, 1954
Aliptrema Ruiz & Teixeira Leão, 1954
Allechinostomum Odhner, 1911
Allobedenenia Yamaguti, 1963
Allocercarioides Yamaguti, 1971
Allodecemtestis Hafeezullah, 1970
Allodidymocodium Yamaguti, 1970
Allodidymozoon Yamaguti, 1959
Alloencotyllabe Khalil & Abdul-Salam, 1988
Allofellodistomum Yamaguti, 1971
Allogastrocotyle Nasir & Fuentes Zambrano, 1984
Allogomtiotrema Yamaguti, 1958
Alloheterocotyla Yamaguti, 1968
Alloheterolebes Hafeezullah, 1971
Alloheterophyes Pearson, 1999
Allolasiotocus Yamaguti, 1959
Allomacroderoides Watson, 1976
Allomegalocotyla Yamaguti, 1963
Allomegasolena Siddiqi & Cable, 1960
Allometabenedeniella Velasquez, 1982
Allomicrophalloides Ke & Liang Chi, 1982
Allomicrophallus Yamaguti, 1971
Allomonaxine Yamaguti, 1965
Allomonorchis Lu, Wu & Chen, 1999
Allonematobothrioides Yamaguti, 1965
Allopetasiger Yamaguti, 1958
Alloplagiorchis Simer, 1931
Alloproctotrema Machida, 1973
Allopseudaxinoides Yamaguti, 1965
Allopseudopiclidophora Yamaguti, 1965
Allopseudopisthogyne Yamaguti, 1965
Alloschistorchis Yamaguti, 1970
Allostenopera Bayeva, 1968
Allosteringophorus Machida, 1987
Allostomachicola Yamaguti, 1958
Allotagia Dillon & Hargis, 1965
Allotangiopsis Yamaguti, 1971
Allotelorchis Goodman, 1988
Allotetraonchoides Dillon & Hargis, 1968
Alphamphistoma Thatcher & Jegu, 1996
Amarocotyle Travassos, Teixeira de Freitas & Bührnheim, 1965
Amazonadistoma Thatcher, 1979
Amnistes Gistl, 1848
Amonaxine Unnithan, 1957
Amphibothrium Frey & Leuckart, 1847
Amphistomulum Brandes, 1892
Amphithecium Boeger & Kritsky, 1988
Amphocleithrium Price & Romero, 1969
Amurotrema Akhmerov, 1959
Anabathycreadium Salman & Srivastava, 1990
Anacanthoroides Kritsky & Thatcher, 1976
Anacanthorus Mizelle & Price, 1965
Anacornuatus Abha Dubey, Gupta & Agarwal, 1992
Anadasmus Looss, 1899
Anallocreadium Simer, 1931
Anapalaeorchis Fujino & Kifune, 1991
Anarhichotrema Shimazu, 1973
Anatirenicola Odening, 1962
Anavilhanatrema Thatcher, 1993
Anchovicola Unnithan, 1964
Ancistrohaptor Agarwal & Kritsky, 1998
Ancylodiscoides Yamaguti, 1937
Ancylodiscoididae Gusev, 1961
Ancyrocephalidae Bychowsky & Nagibina, 1968
Andrincola Zhang & Yang, 1993
Andritrema Zhang & Yang, 1993
Androspira Suriano, 1981
Angiodictgum Looss, 1902
Angiodictyum Looss, 1902
Angionematobothrium Yamaguti, 1970
Anguillotrema Chin & Ku, 1974
Anisogaster Looss, 1901
Anisoporus Ozaki, 1928
Ankyrocotyle Vlassenko, 1928
Annelamphistoma Thatcher, Sey & Jegu, 1997
Annulotrema Paperna & Thurston, 1969
Annulotrematoides Kritsky & Boeger, 1995
Anomolecithus Odening, 1958
Antepharyngeum Witenberg, 1925
Anterodiscus Bilqees, 1974
Anterovitellosum Gupta, 1967
Anthochoanocotyle Kamegai, 1972
Anthocotylidae Bychowsky, 1957
Antodera Pigulevsky, 1952
Aototrema Bean-Knudsen, Uhazy & Wagner, 1987
Aphanospirorchis Platt, 1990
Aphanuroides Nagaty & Abdel Aal, 1962
Apharyngogyliauchen Yamaguti, 1942
Apharyngotrema Marshall & Miller, 1978
Apolemichthytrema Toman, 1989
Aptorchis Nicoll, 1914
Archidiplectanum Mizelle & Kritsky, 1969
Aristocleidus Müller, 1936
Arthurloossia Nagaty, 1954
Aspalacitrema Deblock & Rausch, 1965
Aspidocotyle Diesing, 1850
Aspidocotylus Diesing, 1838
Aspidogastrea
Aspina Tripathi, 1956
Aspitocotyle Monticelli, 1892
Assamia Dayal & Gupta, 1974
Assitrema Paruchin, 1976
Astomum Schlotthauber, 1860
Astrorchis Poche, 1926
Asymmetria Suriano, 1975
Asymphylodoroides Yamaguti, 1971
Asymphylotrema Dvorjadkin & Besprozvanych, 1985
Atalosparganum Ishii, 1935
Atheria Hafeezullah, 1975
Athesmioides Cribb & Spratt, 1992
Atlanticotyle Mamaev & Zubchenko, 1978
Atractotrema Goto & Ozaki, 1929
Atrioglabrum Gracenea, Montoliu & Deblock, 1993
Atriospinosum Deblock, 1973
Atriostella Unnithan, 1971
Australodiscus Sey, 1983
Australotrema Khalil, 1981
Austrocalicotyle Szidat, 1972
Austrocreadium Szidat, 1956
Austrodiplostomum Szidet & Nani, 1951
Austrohalipegus Cribb, 1988
Austroholorchis Bray & Cribb, 1997
Axinella Lebedev, Parukhin & Roitman, 1970
Azygiida
Baccigeroides Manna & Datta, 1996
Bagaritrema Tripathi, 1959
Bagrobdella Paperna, 1969
Baiohelmins Cribb & Pearson, 1988
Bakkeius Zamparo, Brooks & Causey, 2003
Bancroftrema Angel, 1966
Baris Looss, 1899
Basantisia Pande, 1938
Bashkinovitrema Skrjabin, 1944
Basidiodiscus Fischthal & Kuntz, 1959
Bathycola Fuhrmann, 1928
Baughbilharzia Chauhan, Srivastava & Chauhan, 1974
Beauchampia Yamaguti, 1963
Beaverostomum Gupta, 1963
Bellumcorpus Kohn, 1962
Benedenozoum Ishii, 1935
Bengaliniella Deblock, Mukherjee & Ghosh, 1970
Bengalotrema Malhotra, Nanda, Mukherjee, Ghosh, Sukul & Capoor, 1989
Betamphistoma Thatcher & Jegu, 1996
Bhaleraoia Srivastava, 1948
Bicaudum Bilqees, 1971
Bifurcohaptor Jain, 1958
Biguetrema Deblock & Capron, 1962
Bilateracotyloides Ramalingam, 1961
Bilatorchis Eduardo, 1980
Bilecithaster Siddiqi & Cable, 1960
Bilorchis Mehra, 1937
Biplacunella Unnithan, 1971
Birendralebes Srivastava & Ghosh, 1973
Bispina Tripathi, 1956
Bistellavula Unnithan, 1971
Bistellavulva Unnithan, 1971
Bivaginuda Unnithan, 1971
Bivulvostella Unnithan, 1971
Blairium Brooks & Holcman, 1993
Bolbocephalus Dubois, 1934
Bolbogonotylus Font, 1987
Bothriogaster Fuhrmann, 1904
Bothriophoron Stiles & Goldberger, 1910
Bouixella Euzet & Dossou, 1976
Brachionus Schrank, 1776
Brachylaemidae
Brachylecithoides Yamaguti, 1971
Brachymetra Stossich, 1904
Brachysaccus Johnston, 1912
Brasicystis Thatcher, 1979
Bravotrema Groschaft, 1972
Brevicaecum McClelland, 1957
Brientrema Dollfus, 1950
Bulbocirrus Yamaguti, 1965
Bulbovitellus Yamaguti, 1971
Bullulina Hammerschmidt, 1838
Bupharynx Yamaguti, 1971
Burnellus Angel, 1971
Bursacetabulus Dronen, Tehrany & Wardle, 1999
Bursatintinnabulus Tehrany, Dronen & Wardle, 1999
Bursotrema Szidat, 1960
Buxifrons Fukui, 1929
Bychowskicotyla Unnithan, 1971
Bychowskicotyle Lebedev, 1969
Bychowskycreadium Mikailov, 1967
Bychowskycreadum Mikailov, 1967
Bychowskyella Akhmerov, 1952
Caballeria Bychowsky & Nagibina, 1972
Caballerodiscus Sey, 1988
Caballeroia Thapar, 1960
Caballerotrema Prudhoe, 1960
Cacatuocotyle Boeger, Domingues & Kritsky, 1997
Caecobiporum Mamaev, 1970
Caenomicrocotyle Unnithan, 1971
Caiguiria Nasir & Diaz, 1971
Cainocreadoides Nagaty, 1956
Calicotylides Nybelin, 1941
Callodistomoides Yamaguti, 1970
Callogonotrema Oshmarin, 1965
Calpidothecioides Kritsky, Boeger & Jegu, 1997
Calpidothecium Kritsky, Boeger & Jegu, 1997
Calyxinella Lebedev, 1972
Campechia Zhukov & Mamaev, 1985
Canaania Travassos, 1944
Capronia Richard, 1966
Capsulodiplostomum Dwivedi, 1966
Caradinicola Annandale, 1912
Carangixenus Unnithan, 1962
Carangoides Radha, 1975
Cardiotrema Dwivedi, 1967
Catoptroides Looss, 1902
Caudorchis Talbot, 1933
Caudotestis Issaitschikow, 1928
Cauliorchis Stiles & Goldberger, 1910
Cemocotylelloides Ramalingam, 1969
Centrovarium Stafford, 1904
Centrovitus Bhalerao, 1926
Cercarea Mudie, 1840
Cercavia Monticelli, 1888
Cercocotyla Yamaguti, 1939
Cesartrema Travassos & Kohn, 1964
Cestotrema Morozov, 1960
Cestracolpa Meserve, 1938
Cetiosaccus Gilbert, 1938
Cetiotrema Manter, 1970
Ceylonotrema Gussev, 1963
Chabaudtrema Kohn, 1970
Chamaeleophilus Yamaguti, 1971
Characidotrema Paperna & Thurston, 1968
Charaxicephaloides Groschaft & Tenora, 1978
Chaseostrigea Ukoli, 1967
Chauhaneidae Euzet & Trilles, 1960
Chauhanocotyle Khoche & Dad, 1975
Chauhanotrema Zhukov, 1972
Chauhanurus Skryabin & Gushanskaya, 1954
Cheilostomum Diesing, 1850
Chelatrema Gupta & Kumari, 1970
Chelonella Beneden & Hesse, 1863
Cheloneotrema Simha & Chattopadhyaya, 1980
Chenia Hsu, 1954
Chinhuta Lal, 1937
Chiostichorchis Artigas & Pacheco, 1932
Chiropterotarbus Bay-Schmith, 1972
Chiropterotrema Velez & Thatcher, 1992
Chiroptodendrium Skarbilovitch, 1943
Choanochenia Yang, 1959
Choanocotyle Jue Sue & Platt, 1998
Choanodiplostomum Vigueras, 1944
Choanostoma Yamaguti, 1934
Choanouvulifer Lung, 1966
Choerocotyle Baer, 1959
Choerocotyloides Prudhoe, Yeh & Khalil, 1964
Cholepotes Odhner, 1911
Chonchosomum Galli-Valerio, 1901
Choristogonoporus Stunkard, 1938
Chrysophrytrema Gupta & Jain, 1992
Cithara MacCallum, 1917
Clacocoelium Stiles & Hassall, 1898
Cladocalium Pontallié, 1853
Cladocoelium Dujardin, 1844
Clariotrema Long So, 1981
Clavogalea Bray, 1985
Clavunculus Mizelle, Stokely, Jaskoski, Seamster & Monaco, 1956
Cleftocolleta Sahai & Srivastava, 1978
Clepsidromis Leuckart, 1836
Clepsitromis Wiegmann, 1836
Clinostomatopsis Dollfus, 1932
Clinostomidae Lühe, 1901
Clinostomoides Dollfus, 1950
Cliveus Bray & Cribb, 1997
Cloeophora Dietz, 1909
Clupenuroides Al-Yamani & Nahhas, 1981
Clupenurus Srivastava, 1935
Cochinocotyle Gupta & Gupta, 1971
Cochleotrema Travassos & Vogelsang, 1931
Coelomotrema Angel, 1970
Coenogonimus Looss, 1899
Coeuritrema Mehra, 1933
Coitocoecum Nicoll, 1915
Colletostomum Sahai & Srivastava, 1978
Colocladorchis Thatcher, 1979
Combesia Mas-Coma, Roset & Mantoliu, 1985
Conchogaster Lutz, 1928
Conchosoma Stossich, 1898
Conchosomum Railliet, 1896
Conohelmins Fischthal & Nasir, 1974
Conspicum Bhalerao, 1936
Contracoelum Witenberg, 1926
Coomera Dove & Cribb, 1995
Cornatrium Onji & Nishio, 1924
Cornucopula Rankin, 1939
Cornudiscoides Kulkarni, 1969
Corpopyrum Witenberg, 1923
Cortinasoma Oshmarin & Zharikova, 1984
Coryphogonimus Cribb & Spratt, 1990
Cosmetocleithrum Kritsky, Thatcher & Boeger, 1986
Cotylegaster Cobbold, 1877
Cotylocreadium Madhavi, 1972
Cotylogonimus Lühe, 1899
Cotylostoma Yang, 1965
Creadium Looss, 1899
Creptotrematina Yamaguti, 1953
Crinicleidus Beverley-Burton, 1986
Crossedera Monticelli, 1888
Crossodera Dujardin, 1844
Crotalaxine Unnithan, 1957
Crumena Nitzsch, 1827
Cruoricola Herbert, Shaharom-Harrison & Overstreeet, 1994
Cryptacetabulum Shalaby & Hassanine, 1997
Cryptocephalus Srivastava, 1944
Cryptodiscus Srivastava & Sahai, 1978
Cryptostomum Nitzsch, 1832
Cryptotrema Ozaki, 1926
Culaeatrema Lasee, Font & Sutherland, 1988
Curimatrema Thatcher, 2000
Curumai Travassos, 1961
Curvianchoratus Hanek, Molnar & Fernando, 1974
Cyathocotyloides Szidat, 1936
Cyatholecithochirium Yamaguti, 1970
Cychlorchis Lühe, 1908
Cycloprimum Witenberg, 1923
Cyclostoma Otto, 1823
Cylindrotrema Angel, 1973
Cymbiforma Yamaguti, 1933
Cynodiplostomum Dubois, 1936
Cypseluritrema Yamaguti, 1970
Cypseluritrematoides Yamaguti, 1970
Cypselurobranchitrema Yamaguti, 1966
Cystodiplostomum Dubois, 1936
Dacticotile Parona & Perugia, 1890
Dactycotyle van Beneden & Hesse, 1863
Dactylodiscus Olsson, 1893
Dactylogyroides Gussev, 1963
Dactyocotyle Braun, 1889
Dadayatrema Vaz, 1932
Dadayia Travassos, 1921
Dadayius Fukui, 1929
Dadaytrema Travassos, 1931
Dadaytremoides Thatcher, 1979
Dasyurotrema Cribb, 1992
Dawestrema Price & Nowlin, 1967
Decacotylus Mayer, 1841
Degeneria Campbell, 1977
Delphinicola Yamaguti, 1933
Deltamphistoma Thatcher & Jegu, 1996
Denticauda Fukui, 1929
Deradena Linton, 1910
Deraiotrema Machida, 1982
Dermocystis Stafford, 1905
Dermophthiroides Cheung & Nigrelli, 1983
Deurithitrema Blair, 1985
Dexiogonimoides Omar & Fahmy, 1990
Diaccessorius Price, 1968
Diasia Travassos, 1922
Diasiella Travassos, 1949
Diastomum Packard, 1882
Dicotyle Sonsino, 1898
Dicranocercaria Szidat, 1932
Dideutosaccus Acena, 1941
Didymocodium Yamaguti, 1970
Didymocystoides Yamaguti, 1970
Didymonaja Pozdniakov, 1987
Didymophaselus Pozdnyakov & Gordeev, 1993
Didymorchis Linton, 1910
Didymosphaera Mamaev, 1968
Didymostoma Ariola, 1902
Digitorchis Gupta, 1968
Dimerosaccus Shimazu, 1980
Dingularis Jue Sue & Platt, 1999
Dinotaster Unnithan, 1971
Dionchotrema Johnston & Tiegs, 1922
Diorchitrema Witenberg, 1929
Diplaxine Ghichenok, 1975
Diplobothrium Leuckart, 1842
Diploheterocotyla Yamaguti, 1965
Diplohurleytrema Nahhas & Cable, 1964
Diplolasiotocus Yamaguti, 1952
Diplomonorcheides Thomas, 1959
Diplopharyngotrema Yamaguti, 1958
Diploporetta Strand, 1942
Diploporus Ozaki, 1928
Diploproctia Mamaev, 1970
Diploproctodaeoides Reimer, 1981
Diplorchis Ozaki, 1931
Diplostomidae Poirier, 1886
Diplostomulum Brandes, 1892
Diplotrema Tripathi, 1959
Diporpa Dujardin, 1844
Disacanthus Oschmarin, Mamajev & Parukhin, 1961
Discocephalotrema Machida, 1993
Discogaster Yamaguti, 1934
Discogastroides Strand, 1934
Dissotrema Goto & Matsudaira, 1918
Dissurus Verma, 1936
Distemum
Distomopsis Rafinesque, 1815
Distomulum Brandes, 1892
Distomus Laennec, 1807
Diurix Unnithan, 1971
Divitelluses Cai & Li, 1993
Dogielius Bychowsky, 1936
Dolichodemas Looss, 1900
Dolichorchis Dubois, 1961
Dolichosacculus Johnston, 1943
Dolichosomum Looss, 1899
Dolichostomum Looss, 1899
Dollfuschella Vercammen-Grandjean, 1960
Dollfustravassosius Freitas & Kohn, 1967
Doradamphistoma Thatcher, 1999
Dozenkostrema Onkarnatha, 1964
Dozenkotrema Onkarnatha, 1964
Duboisitrema Kifune, 1980
Duosphincter Manter & Pritchard, 1960
Dussumericola Unnithan, 1966
Duttiella Srivastava, Prasad & Maurya, 1980
Echinella van Beneden & Hesse, 1864
Echinocirrus Mendheim, 1943
Echinostephanus Yamaguti, 1934
Echinostomida
Edcaballerotrema Teixeira de Freitas, 1960
Elonginurus Lu, 1995
Elopsium Fischthal & Thomas, 1972
Elseyatrema Rohde, 1984
Emistomum Sonsino, 1889
Empleurodiscus Johnston & Tiegs, 1922
Empleurosoma Johnston & Tiegs, 1922
Enallothecium Kritsky, Boeger & Jegu, 1998
Encyclobrephus Sinha, 1949
Endocotyle Belopolskaya, 1952
Engrauliphila Unnithan, 1967
Engraulitrema Gupta, Krishna & Sharma, 1977
Engraulixenus Unnithan, 1967
Enodia Looss, 1899
Enoplocotylidae Malmberg, 1990
Enterogyrus Paperna, 1963
Episthochasmus Verma, 1935
Erilepturus Woolcock, 1935
Eroliostrigea Yamaguti, 1971
Erschoviorchis Skrjabin, 1945
Etrumeicotyle Mamaev, 1981
Eubucephalus Diesing, 1855
Eucercaria Diesing, 1855
Eucercarioides Tang & Tang, 1992
Eucradium Szidat, 1954
Eucreadium Dayal, 1942
Eupolystoma Kaw, 1950
Eurobilharzia Le Roux, 1958
Eurostomum MacCallum, 1921
Eurycephalus Ovcharenko, 1955
Eurycoelium Hoyle, 1888
Eurycoelum Brock, 1886
Eurymetra Odhner, 1910
Eurypera Manter, 1933
Eurysoma Dujardin, 1844
Eustemma Diesing, 1850
Eustomos MacCallum, 1921
Eutrianchoratus Paperna, 1969
Euzetplectanocotyle Mamaev & Tkachuk, 1979
Euzetrema Combes, 1966
Evandrocotyle Jansen, 1941
Evanorchis Skrjabin, 1944
Evistiotrema Machida, 1975
Exacotyle Monticelli, 1888
Excoitocaecum Slusarski, 1958
Exorchocoelium Thapar, 1956
Exoticotyle Sahai & Srivastava, 1978
Exotidendrium Mehra, 1935
Explanatum Fukui, 1929
Eyelavera Unnithan, 1968
Falciungus Akmerov, 1952
Faredifex Blair, 1981
Fascinia Rafinesque, 1815
Fascioletta Garrison, 1908
Feminapocula Ke et al., 1987
Fengcotyle Tang & Tang, 1989
Festucaria Schrank, 1788
Ficedularia Xu, 1979
Flabellodiscus Johnston & Tiegs, 1922
Floridatrema Kinsel & Deblock, 1994
Folitrema Blair, 1981
Follicovitellosum Gupta, 1972
Folliocovitellosum Gupta, 1972
Folliorchis Srivastava, 1948
Fontius Lotz & Palmieri, 1985
Fredericianella Monticelli, 1903
Fridericianella Brandes, 1894
Furcohaptor Bijukumar & Kearn, 1996
Galactosomoides Cable, Connor & Balling, 1960
Gamacallum Unnithan, 1971
Gammamphistoma Thatcher & Jegu, 1996
Ganada Chatterji, 1933
Ganadotrema Dayal, 1949
Gangatrema Agarwal & Kumar, 1981
Gargorchis Linton, 1940
Gasirocotyloides Lebedev, 1980
Gastris Lühe, 1906
Gastrocotyloides Lebedev, 1980
Gastrothylacias Stiles & Goldberger, 1910
Gastrothylacides Stiles & Goldberger, 1910
Gauhatiana Gupta, 1955
Geaterinia Lebedev, 1969
Gemellicotyle Prudhoe, 1975
Gephyrocotyle Unnithan, 1967
Ghaziatrema Nasir & Gomez Velasquez, 1977
Gibsonia Gajevskaja & Rodjuk, 1988
Gibsonium Brooks & Holcman, 1993
Gibsonivermis Bray, Cribb & Barker, 1997
Gigantatrium Yamaguti, 1958
Gigantobilharziella Khalifa, 1974
Gigantocotyle Näsmark, 1937
Gigantogorgoderina Machida & Kuramochi, 1994
Gigantopora Looss, 1907
Girodactylus Monticelli, 1888
Gissutrema Machida & Kamegai, 1997
Glandulocephalus Unnithan, 1972
Glandulorhynchus Thatcher, 1999
Glassidiella Travassos, 1927
Glassidium Travassos, 1927
Glenocercaria Diesing, 1858
Globoporum MacCallum, 1921
Globostomum Oshmarin, 1970
Globularia Rolando, 1841
Glomeritrema Yamaguti, 1942
Glossidiella Travassos, 1927
Glossidioides Yamaguti, 1958
Glossidium Looss, 1899
Glossimetra Mehra, 1937
Glossocotyle Van Beneden & Hesse, 1863
Glossodiplostomoides Bhalerao, 1942
Glossodiplostomum Dubois, 1932
Glyptamphistoma Yamaguti, 1958
Gnathomyzon Crowcroft, 1945
Godavaritrema Karyakarte & Yadav, 1976
Gomtia Thapar, 1930
Gomtiotrema Sinha, 1934
Gonacanthella Sogandares-Bernal, 1959
Gonocleithrum Kritsky & Thatcher, 1983
Gorgotrema Dayal, 1938
Gotonius Ozaki, 1924
Grandicotyle Lebedev, 1976
Griphobilharzia Platt & Blair, 1991
Grysoma Byrd, Bogitsh & Maples, 1961
Guaicaipuria Nasir, Diaz & Guerra, 1970
Gualcapuria Nasir, Diaz & Guerra, 1970
Guggenheimia Bravo-Hollis & Manter, 1957
Guptatrema Yamaguti, 1971
Guschanskiana Skrjabin, 1959
Gussevstrema Price & McClellan, 1969
Gymnocephala Diesing, 1858
Gymnophalloides Fujita, 1925
Gymnotergestia Nahhas & Cable, 1964
Gynaecophorus Diesing, 1858
Gyrodactyle Moulinié, 1856
Gyrodaktylus Schneidemuehl, 1896
Haematobium Dunglison, 1893
Haematoprimum Witenberg, 1923
Haematotrema Stunkard, 1923
Haerator Blair, 1981
Hairana Nagaty, 1948
Halltrema Lent & Freitas, 1939
Hallum Wigdor, 1918
Hapalometra Pratt, 1902
Haplocaecum Simha, 1958
Haplometroides Odhner, 1911
Haplosplanchnoides Nahhas & Cable, 1964
Haplostomum Burmeister, 1856
Harmostomum Witenberg, 1925
Haroldmanteria Caballero & Bravo Hollis, 1972
Harvardia Baer, 1932
Harveytrema Kruse, 1978
Hassallius Goldberger, 1911
Hawkesius Stiles & Goldberger, 1910
Hectacanthus Parona & Perugia, 1890
Helicodidymozoon Anderson & Cribb, 1995
Helicometroides Yamaguti, 1934
Helostomatis Fukui, 1929
Hemiperina Manter, 1934
Hemistephanus Looss, 1901
Hemistoma Cobbold, 1861
Hemistomum Diesing, 1850
Hemixenotrema Baer, 1971
Henotosoma Stunkard, 1922
Hepastomum Brandes, 1888
Hepatohaemotrema Simha, 1958
Hepatotrema Stunkard, 1923
Hephostomum Burmeister, 1856
Heptastomum Diesing, 1850
Heptostomum Schomburgk, 1844
Heteracanthus Diesing, 1836
Heterechinostomum Odhner, 1911
Heterobdella Beneden & Hesse, 1864
Heterobothrioides Mamaev & Parukhin, 1975
Heterocoelium Travassos, 1921
Heterocotyloides Yamaguti, 1963
Heterolope Looss, 1899
Heterorchis Baylis, 1915
Heterostoma De Filippi, 1837
Heterostomum Diesing, 1850
Heterotesia Paperna, 1969
Heterothecium Kritsky, Boeger & Jegu, 1997
Hexacotyle de Blainville, 1828
Hexanthyridium Perroncito, 1882
Hexastichorchis Blei, 1921
Hexastoma Rudolphi, 1809
Hexastomium Treutler, 1793
Hexastomum Treutler, 1793
Hexathiridium de Blainville, 1821
Hexathyridia Rafinesque, 1815
Hexathyridium Treutler, 1793
Hexathyridum Monticelli, 1888
Hexatiridium Burmeister, 1856
Hexocyclobothrium Mamaev & Aleshkina, 1984
Himasthloides Alekseev, 1965
Hirudineatrema Demshin, 1967
Hirudinelloides Gaevskaya & Kovaleva, 1977
Histerolecitha Linton, 1910
Histrionella Ehrenberg, 1828
Histrionellina Diesing, 1858
Holacanthitrema Yamaguti, 1970
Holometra Looss, 1899
Holostephanoides Dubois, 1983
Homoscaphis Canavan, 1933
Hoploderma Cohn, 1903
Horatrema Srivastava, 1942
Hormocercaria Diesing, 1855
Horricauda Tripathi, 1959
Hunterotrema McIntosh, 1960
Huridostomum Mamaev, 1970
Hydricuculus McCrady, 1873
Hydrochoeristrema Sinkoc, Muller & Brum, 1998
Hydrophitrema Sandars, 1960
Hyperopletes Boeger, Kritsky & Belmont-Jégu, 1994
Hypohepaticola Yamaguti, 1934
Hypoporus Wang, 1987
Hypostoma Rudolphi, 1809
Hysterogonia Hanson, 1955
Hysterogonoides Zhang, 1992
Hysterolecithoides Yamaguti, 1934
Hysterorchis Durio & Manter, 1968
Iagotrema Mañé-Garzón & Gil, 1962
Iguanacola Gilbert, 1938
Iheringtrema Travassos, 1947
Ilyogonimus Braun, 1901
Inbjumia Mamaev & Parukhin, 1984
Indocotyle Tripathi, 1959
Indocotylus Kulkarni, 1969
Indocreadium Srivastava, 1943
Indodidymozoon Madhavi, 1982
Indoglomeritrema Madhavi & Hanumantha Rao, 1983
Indopleurogenes Yamaguti, 1971
Indopodocotyle Gupta & Puri, 1981
Indopodocotyloides Gupta & Sayal, 1979
Indopseudechinostomum Sharma, 1976
Indostomachicola Gupta & Sharma, 1973
Infidum Travassos, 1916
Inpamphistoma Thatcher, Sey & Jegu, 1997
Insulacleidus Rakotofiringa & Euzet, 1983
Interniloculus Suriano & Beverley-Burton, 1979
Intusatrium Durio & Manter, 1968
Inustiatus Khotenovskij, 1978
Inversocotyle Mamaev & Parukhin, 1971
Iquitos Mane-Garzon & Gil, 1963
Irinaxine Gichenok, 1980
Ishiella Unnithan, 1971
Isocoelioides Zhukov, 1971
Isocoelium Ozaki, 1927
Ithyoclinostomum Witenberg, 1925
Ityogonismus
Jainus Mizelle, Kritsky & Crane, 1968
Jamuartrema Kumar Lal, 1976
Janickia Rasín, 1929
Jericho Bray & Cribb, 1997
Jilinobilharzia Liu & Bai, 1976
Jonesiella Hafeezullah & Siddiqi, 1970
Kachugotrema Dwivedi, 1967
Kalipharynx Boeger & Thatcher, 1983
Kalitrema Travassos, 1933
Kamchatkinella Caballero & Bravo Hollis, 1972
Kamegaia Yamaguti, 1970
Karachitrema Bilqees, 1973
Karavolicotyla Price, 1962
Kasr Khalil, 1932
Kaurma Chatterji, 1936
Keralina Unnithan, 1966
Khalilloossia Hilmy, 1949
Klepsitromis Hammerschmidt, 1835
Koellikerizoum Ishii, 1935
Koiea Bray & Campbell, 1995
Kritskyia Kohn, 1990
Krusadaitrema Zhukov, 1972
Labicola Blair, 1980
Labidotrema Pearson & Deblock, 1986
Labontes MacCallum, 1927
Labracetabulum Reimer, 1987
Labriferoides Ganapati, Hanumantha & Lakshmana Rao, 1962
Lacerdaia Travassos, 1931
Lagarocotyle Kritsky, Hoberg & Aubry, 1993
Lagenivaginopseudobenedenia Yamaguti, 1966
Lagenocystis Yamaguti, 1970
Laiogonimus Vercammen-Grandjean, 1960
Lamellodiscoides Yamaguti, 1963
Lampanyctophilus Payne, 1986
Lamprididymozoon Yamaguti, 1971
Lankatrema Cruz & Fernand, 1954
Lankatrematoides Blair, 1981
Lappogonimus Oschmarin, Mamajev & Parukhin, 1961
Laruea Srivastava, 1939
Laterocreadium Macy & Berntzen, 1970
Lateroctocotyle Mamaev & Avdeev, 1981
Laterostrigea Yang, 1962
Laureriella Skrjabin, 1916
Lebboia Mamaev & Parukhin, 1975
Lebouria Nicoll, 1909
Lechradena Linton, 1910
Lecithobotrioides Thatcher & Dossman, 1974
Lecithomonoium Shen, 1987
Lecithoporus Mehra, 1935
Lecithurus Pigulewsky, 1938
Leioderma Stafford, 1904
Leiomonorchis Mamaev, 1970
Leiperocotyle Eduardo, 1980
Leipertrema Sandosham, 1951
Lenolopa Lu & Wu, 1996
Lepidapedella Bray, Cribb & Pichelin, 1999
Lepidodidymocystis Yamaguti & Kamegai, 1969
Lepidodidymozoon Shen, 1984
Lepidotes Johnston & Tiegs, 1922
Lepoderma Looss, 1899
Lepotrema Ozaki, 1932
Leptalea Looss, 1899
Leptobulbus Manter & Pritchard, 1962
Leptocreadium Ozaki, 1936
Leptolecithum Kobayashi, 1915
Leptolecithurus Fuhrmann, 1928
Leptonchides Chen, 1987
Leptophyllum Cohn, 1902
Leptosoma Stafford, 1904
Lepustomum Jain, 1953
Leurosoma Ozaki, 1932
Levinsenia Stossich, 1899
Levinsensia Looss, 1928
Ligictaluridus Beverley-Burton, 1984
Liliaoralis Korotaeva, 1994
Limatuloides Dubois, 1964
Limosina Manter, 1944
Linguadactyloides Thatcher & Kritsky, 1983
Linguastomachicola Srivastava & Sahai, 1978
Lintonia Monticelli, 1904
Liocerca Looss, 1902
Liopyge Looss, 1899
Lobatocreadium Madhavi, 1972
Lobatocystis Yamaguti, 1965
Lobatodiscus Rohde, 1984
Lobogonimus Filimonova, 1973
Loborchis Stossich, 1902
Lobostoma Berthold, 1827
Loefgrenia Travassos, 1920
Lomaphorus Manter, 1934
Longigula Qiu, Zhang & Li, 1983
Longihaptor Mizelle & Kritsky, 1969
Longimonorchis Mamaev, 1970
Longitrema Chen, 1954
Loossia Ciurea, 1915
Lophocercaria Diesing, 1858
Lophosicyadiplostomum Dubois, 1936
Loriformis Goeze, 1782
Loxotrema Kobayashi, 1912
Loxotremuna Strand, 1942
Loxura Unnithan, 1957
Lucknoides Gupta, 1955
Lutianicotyle Mamaev, 1990
Lutziella Rohde, 1966
Luxitrema Bray, 1987
Lyperorchis Travassos, 1921
Lyperosomoides Yamaguti, 1971
Lyperotrema Travassos, 1919
Macallumia Chatterji, 1938
Maccallozoum Ishii, 1935
Maccallumtrema Yamaguti, 1970
Macia Travassos, 1921
Macrechinostomum Odhner, 1911
Macrobilharzia Travassos, 1922
Macrocercus Müller, 1773
Macrocraeoides
Macrogenotrema Skrjabin & Baskakov, 1925
Macrogyrodactylus Malmberg, 1957
Macrolecithus Ozaki, 1926
Macrophallus Otagaki, 1958
Macropharynx Näsmark, 1937
Macrophylla Hughes, 1928
Macropotrema Blair, Beveridge & Speare, 1980
Macrostomtrema Chiu, 1961
Macrotrema Gupta, 1951
Macrurochaeta Costa, 1864
Maederia Bourgat & Combes, 1979
Magnacetabulum Yamaguti, 1934
Mahrosa Nagaty & Abdel Aal, 1961
Maicuru Teixeira de Freitas, 1960
Maillardiella Brooks & Holcman, 1993
Makairatrema Yamaguti, 1970
Malabarotrema Zhukov, 1972
Malagashitrema Capron, Deblock & Brygoo, 1961
Malayanodiscoides Lim & Furtado, 1986
Malleolus Ehrenberg, 1838
Mamaevodiclidophora Rubec, 1991
Manidicola Graber, 1981
Mantarella Unnithan, 1971
Manterella Unnithan, 1971
Manteroderma Skryabin, 1957
Margeana Cort, 1919
Margolisia Bray, 1987
Maritremopsis Deblock, 1973
Markevitschiella Skryabin & Koval, 1957
Markewitschiana Allamuratov & Koval, 1966
Marmostomum Looss, 1900
Mawsonotrema Angel, 1973
Maxtrema Travassos, Teixeira de Freitas & Kohn, 1969
Mazzantia Travassos & Kohn, 1964
Mecynophallus Cable, Connor & Balling, 1960
Mediantestis Issaitschikow, 1928
Mediodera Pigulevsky, 1952
Mediopharyngeum Witenberg, 1925
Medioporus Oguro, 1936
Mediorchis Panin, 1984
Mediorima Nicoll, 1914
Meditypus Barton, 1994
Megacetabulum Oshmarin, 1964
Megacetes Looss, 1899
Megacoelium Szidat, 1954
Megacustis Bennett, 1933
Megadistomum Stafford, 1904
Megalatriotrema Rao, 1969
Megalobenedenia Egorova, 1993
Megaloncus Yamaguti, 1958
Megalophalloides Ching & Ibanez Herrera, 1976
Megamonostomella Rahemo & Al-Naemi, 1998
Megistospermaticus Deblock & Canaris, 1991
Mehlisia Johnston, 1913
Mehraformis Bhardwaj, 1963
Mehraorchis Srivastava, 1934
Mehrastomum Saksena, 1959
Melanocystis Yamaguti, 1970
Melanoglena Eichwald, 1850
Melogonimus Bray, Brockerhoff & Cribb, 1995
Mesocotyle Parona & Perugia, 1889
Mesocreadium Reimer, 1987
Mesodendrium Faust, 1919
Mesodiplostomum Dubois, 1936
Mesogonimus Monticelli, 1888
Mesopolystoma Vaucher, 1981
Mesostephanoides Dubois, 1951
Metacamopiella Kohn, Santos & Lebedev, 1996
Metacercaria
Metacetabulum Freitas & Lent, 1938
Metaclinostomum Pandey & Baugh, 1970
Metadelphis Travassos, 1944
Metadidymocystis Yamaguti, 1970
Metadidymozoon Yamaguti, 1970
Metadiplectanotrema Gerasev, Gayevskaya & Kovaleva, 1987
Metagorgoderina Fernandes, 1958
Metagyrodactylus Yamaguti, 1963
Metahelicometra Yamaguti, 1971
Metahemiurus Skryabin & Gushanskaya, 1954
Metamaritrema Yamaguti, 1971
Metamegasolena Yamaguti, 1970
Metanematobothrioides Yamaguti, 1965
Metaplehniella Lebedev & Parukhin, 1972
Metapolystoma Combes, 1976
Metapronocephalus Pandey & Agrawal, 1980
Metascocotyle Ciurea, 1933
Metechinostoma Petrochenko & Khrustaleva, 1963
Methoracotyle Lebedev, 1984
Metopisthogyne Yamaguti, 1966
Micramphistoma Thatcher, 1992
Microderma Mehra, 1931
Microlecithus Ozaki, 1926
Microlistrum Braun, 1901
Microncotrema Yamaguti, 1958
Microparyphium Dietz, 1909
Microphalloides Yoshida, 1938
Microrchis Daday, 1906
Microscapha Looss, 1899
Microtrema Kobayashi, 1915
Mimodistomum Stafford, 1904
Minuthorchis Linton, 1928
Mitotrema Manter, 1963
Mixophthalmus Karyakarte, 1967
Mizellebychowskia Gupta & Sachdeva, 1990
Mizelleus Jain, 1957
Mochliscotrema Deblock & Pearson, 1986
Monarrhenos Deblock & Pearson, 1971
Monaxinoididae
Moniligerum Dailey, Vogelbein & Forrester, 1988
Monocerca Wedl, 1861
Monocleithrium Price & McMahon, 1966
Monocoelium Wegener, 1910
Monocotyloides Johnston, 1934
Monolecithotrema Yamaguti, 1970
Monopisthocotylea Odhner, 1912
Monorchiaponurus Fischthal & Nasir, 1974
Monorchicestrahelmins Yamaguti, 1971
Monorchimacradena Nahhas & Cable, 1964
Monorchotrema Faust & Nishigori, 1925
Monostomeus Rafinesque, 1815
Monostomulum Brandes, 1892
Monovitella Ataev, 1970
Mordvilkovia Pigulewsky, 1931
Mordvilkoviaster Pigulewsky, 1938
Morenodendrium Odening, 1969
Muhlingina Mehra, 1950
Multiglandularis Schulz & Skworzow, 1931
Multigonadus Bilqees, 1970
Multilecithum Oshmarin & Demshin, 1972
Multiovarium Bilqees, 1974
Multivitellaria Phadke & Gulati, 1930
Multivitellus Ke & Liang Chi, 1982
Multtubovarium Mamaev, 1970
Musalia Shipley & Hornell, 1904
Muttua Shipley & Hornell, 1904
Mycterobonacinus Nasir & Gomez, 1977
Myleustrema Thatcher & Jegu, 1998
Myosaccus Gilbert, 1938
Myxinidocotyle Malmberg & Fernholm, 1989
Nagmioides Dollfus, 1971
Nannoenteron Ozaki, 1924
Nannoenterum Ozaki, 1928
Nanophyes Chapin, 1926
Nanotrema Paperna, 1969
Nasoancyrocephalus Machida, 1979
Navicularia Mendheim, 1943
Navigiolum Onji & Nishio, 1924
Neelydiplostomum Gupta, 1958
Nenimandijea Kaw, 1950
Neoallassostoma Farooq, Khanun & Ansar, 1983
Neoallocreadium Achmerov, 1960
Neoallolepidapedon Yamaguti, 1965
Neoanaporrhutum Gupta & Tiwari, 1985
Neoandrincola Zhang & Yang, 1997
Neoaphanurus Tang, Shi & Pan, 1983
Neoartyfechinostomum Agrawal, 1963
Neobenthotrema Wang, 1991
Neobucephalopsis Dayal, 1948
Neobychowskyella Ma, Wang & Li, 1983
Neocaballerotrema Simha, 1977
Neochoanochenia Yang, 1965
Neochoanodera Fischthal & Thomas, 1970
Neochoanostoma Bray & Cribb, 1989
Neocladocystis Manter & Pritchard, 1969
Neocladorchis Bhalerao, 1937
Neoclupecotyle Price, 1961
Neocotylotretus Sharma, 1976
Neocricocephalus Gupta, 1962
Neoctangium Ruiz, 1943
Neodactylodiscus Kamegai, 1972
Neodactylostomum Toman, 1996
Neodermophtherius Price, 1963
Neodeuterobaris Brooks, 1976
Neodichadena Yamaguti, 1971
Neodiclidophora Gupta & Krishna, 1980
Neodicrocoelium Agrawal & Sharma, 1990
Neodidymozooides Yamaguti, 1970
Neodidymozoon Yamaguti, 1970
Neodiplectanotrema Gerasev, Gayevskaya & Kovaleva, 1987
Neodiplostomoides Vidyarthi, 1938
Neoechinostoma Agrawal, 1963
Neoencotyllabe Gupta & Krishna, 1980
Neoerilepturus Shalaby & Hassanine, 1996
Neoeuparadistomum Farooq & Azra Qamar, 1996
Neofridericianella Gupta & Sachdeva, 1990
Neoganada Dayal, 1938
Neogenolinea Siddiqi & Cable, 1960
Neogonapodasmius Radhakrishnan & Balakrishnan Nair, 1982
Neogorgoderina Pereira & Cuocolo, 1940
Neogyrodactylus Baugh, 1957
Neohaematotrephus Kanev, Radev & Fried, 2002
Neohamatopeduncularia Gupta & Varsha Sachdeva, 1987
Neohaploporus Manter, 1963
Neohaplosplanchnus Lu, 1995
Neohemiurus Slusarski, 1958
Neoheterophyes Khotenovsky, 1970
Neohexangitrema Machida, 1984
Neohyptiasmus Kanev, Radev & Fried, 2002
Neolamprididymozoon Wierzbicka, 1982
Neolasiotocus Ahmad, 1991
Neolepoderma Mehra, 1937
Neolissorchis Machida, 1985
Neomacrovalvitrema Suriano, 1975
Neometadidymozoon Yamaguti, 1971
Neometanematobothrioides Yamaguti, 1970
Neomichajlovia Zamparo & Brooks, 2007
Neomicrophallus Farooq & Yousuf, 1986
Neomurraytrema Tripathi, 1959
Neomurraytrematoides Fuentes-Zambra & Ochoa-Anez, 1993
Neonematobothrium Yamaguti, 1965
Neoopisthomonorchis Varma, 1982
Neoparacardicola Yamaguti, 1970
Neoparacryptogonimus Hafeezullah, 1980
Neoparadiplostomum Bisseru, 1957
Neoparalepoderma Chattopadhyaya, 1971
Neopavlovskioides Dillon & Hargis, 1968
Neopecoelina Gupta, 1955
Neophroechinostoma Oshmarin & Belous, 1951
Neopisthadena Machida, 1980
Neopisthorchis Chatterji & Kruidenier, 1961
Neoplagioporus Shimazu, 1990
Neopodocotyle Dayal, 1950
Neopreptetos Machida, 1982
Neopronocephalus Mehra, 1932
Neoprosotocus Bourgat & Combes, 1977
Neoprosthodendrium Hall, 1960
Neopterinotrematoides Suriano, 1975
Neorenicola Odening, 1962
Neorenifer Byrd & Denton, 1938
Neosaccocoelium El-Shahawi, El-Gindy, Iman & Al-Bassel, 1992
Neosprostonia Jain, 1959
Neotetraonchidae
Nephrobius Poche, 1926
Nephrocephala Diesing, 1858
Nephrocephalus Odhner, 1902
Nephrodidymotrema Yamaguti, 1970
Neuronaia Goodsir, 1845
Neuronaina Linstow, 1878
Neutraclinostomum Feizullaev & Mirzoeva, 1983
Nicolasia Suriano, 1975
Nicollia Wisniewski, 1933
Nicollina Deshmukh, 1988
Nicollodiscus Srivastava, 1937
Nidrosia Mortensen, 1933
Nigerina Baugh, 1958
Nilocotyle Näsmark, 1937
Niviventertrema Dronen, Homesley & Cleveland, 1995
Nizamia Dayal, 1938
Nonacotyle Ogawa, 1991
Nordosttrema Issaitschikow, 1928
Notaster Unnithan, 1971
Nothogyrodactylus Kritsky & Boeger, 1991
Notoctus Rafinesque, 1815
Notodiplocerus Suriano, 1980
Notopronocephalus Cribb & Pichelin, 1997
Notopterodiscoides Lim & Furtado, 1986
Notothecioides Kritsky, Boeger & Jegu, 1997
Notothecium Boeger & Kritsky, 1988
Notozothecium Boeger & Kritsky, 1988
Novetrema Rohde, 1962
Nudimasculus Unnithan, 1971
Nuitrema Kurochkin, 1975
Numeniotrema Belopolskaya, 1952
Ocadiatrema Fischthal & Kuntz, 1981
Occultacetabulum Reimer, 1985
Octangium Looss, 1902
Octocolyte Monticelli, 1888
Octocotyle Chiaje, 1841
Octocotyte Parona, 1894
Octodactylus Dalyell, 1853
Octoplectanum Diesing, 1858
Octostoma Otto, 1823
Octothilus Hermann, 1782
Oculonematobothrium Murugesh, Krishna Sai Ram & Madhavi, 1992
Oculotrema Stunkard, 1924
Odeningotrema Rohde, 1962
Odontotrema Hafeezullah & Siddiqi, 1970
Odothecium Kritsky, Boeger & Jegu, 1997
Oistosomum Odhner, 1902
Oligolecithoides Shen, 1982
Oligolecithus Vercammen-Grandjean, 1960
Oligoncobenedenia Yamaguti, 1965
Olivacreadium Bilqees, 1976
Olssoniella Travassos, 1944
Olveria Sinha, 1941
Omnipharynx Nicholls & Brooks, 1969
Omothecium Kritsky, Thatcher & Boeger, 1987
Ompoktrema Varma & Singh, 1986
Onchiodiscus Kulkarni, 1969
Onchobdella Paperna, 1968
Onchogaster Claparède, 1863
Oogyrodactylus Harris, 1983
Opedunculata Dwivedi, 1975
Opepherocystis Yamaguti, 1970
Opepherotrematoides Yamaguti, 1970
Ophiocorchis Srivastava, 1933
Ophiohaplorchis Yamaguti, 1971
Ophiorchis Mehra, 1937
Ophiotreminoides Coil & Kuntz, 1960
Opisthoarchiotrema Gupta & Sharma, 1974
Opisthobrachylecithum Yamaguti, 1971
Opisthodiplomonorchis Madhavi, 1974
Opisthogenes Nicoll, 1914
Opisthogonoporantesophagus Nasir & Gomez, 1977
Opisthogonoporoides Madhavi, 1972
Opistholecithum Baer, 1972
Opisthometra Poche, 1926
Opisthophallus Baer, 1923
Opisthoporus Fukui, 1929
Opisthorchiida
Opistocotyle LeBlond, 1836
Orchispirium Madhavi & Rao, 1970
Oreochromogyrus Ferdousi & Chandra, 2002
Orientoacanthostomum Zaidi & Khan, 1977
Orientobilharzia Dutt & Srivastava, 1955
Orientodiploproctodaeum Bhutta & Khan, 1970
Orientodiscus Srivastava, 1937
Orientophorus Srivastava, 1935
Orthetrotrema Macy & Basch, 1972
Orthodena Durio & Manter, 1968
Orthorchis Travassos, 1944
Orthoruberus Nasir & Gomez, 1977
Oryzomytrema Thatcher, 1982
Oschmarinotrema Yamaguti, 1971
Osteochilotrema Jones & Seng, 1986
Osteodidymocodium Yamaguti, 1970
Oswaldoia Travassos, 1919
Oswaldotrema Muniz-Pereira & Pinto, 2000
Overstreetium Brooks & Holcman, 1993
Ovipusillus Dove & Cribb, 1998
Ovotrema Pigulewsky, 1938
Ozakia Wisniewski, 1932
Pacificreadium Durio & Manter, 1968
Pacudistoma Thatcher, 1993
Pagellicotyle Mamaev, 1984
Palamphistomum Srivastava & Tripathi, 1987
Palitrema Cogate, 1939
Palombitrema Price & Bussing, 1968
Pameileenia Wright & Smithers, 1956
Panamphistomum Manter & Pritchard, 1964
Pancreaticum Bhalerao, 1936
Pancreatrema Oshmarin, 1952
Panopistidae Yamaguti, 1958
Papillatrium Richard, 1966
Papilloleucochloridium Bakke, 1980
Papillopseudotagia Payne, 1987
Parabaris Travassos, 1922
Parabascoides Stunkard, 1938
Parabenedenia Johnston, 1929
Paracalicotyle Szidat, 1970
Paracaniongiella Lebedev, 1976
Paracanthatrium Dubois, 1961
Paracanthostomum Fischthal & Kuntz, 1965
Paracardicola Martin, 1960
Paracephalogoniomus Skrjabin, 1949
Paracercorchis Mehra & Bokhari, 1932
Paracochleotrema Sharma & Gupta, 1971
Paraconcinnum Vassiliades & Richard, 1970
Paracotyle Johnstone, 1911
Paracrepidostomum Lu & Wu, 1996
Paracryptogonimoides Nagaty & Abdel Aal, 1961
Paracyathocotyle Szidat, 1936
Paradactylogyrus Thapar, 1948
Paradactylostomum Toman, 1992
Paradecemtestis Wang, 1963
Paradenogaster Fischthal & Kuntz, 1975
Paradeuterobaris Blair & Rose, 1986
Paradiplobulbus Bilqees, 1972
Paradiplostomum La Rue, 1926
Paradiscogaster Yamaguti, 1934
Paradistomoidella Brooks & Palmieri, 1981
Paradistomoides Travassos, 1944
Paradiurix Unnithan, 1971
Paragemmaecaputia Ramalingham, 1961
Paragonapodasmius Yamaguti, 1938
Paragono Pearse, 1930
Paragrubea Mamaev, 1982
Paragyrodactyloides Ostrowski de Nunez, 1975
Paragyrodactylus Szidat, 1973
Parahalipegus Wootton & Powell, 1964
Paraheteronchocotyle Mayes, Brooks & Thorson, 1981
Parahurleytrema Nahhas & Powell, 1965
Paraibatrema Ueta, Deberaldini, da Silva Cordeiro & de Toledo Artigas, 1981
Paraindopleurogenes Kalyankar & Palladwar, 1977
Paraisocoelium Ozaki, 1932
Paralaria Krause, 1914
Paralecithochirium Zhang, 1994
Paralepidauchen Brinkmann, 1956
Paralepidophyllum Yamaguti, 1934
Paraleyogonimus Vaucher, 1968
Paralutztrema Faust, 1967
Paramacradenina Tang, Shi & Guan, 1983
Paramacrolecithus Srivastava & Ghosh, 1967
Paramanteriella Li, Qiu & Zhang, 1988
Paramaritremopsis Deblock & Bush, 1985
Paramasenia Ramadan, Saoud & Taha, 1987
Parametadelphis Travassos, 1955
Paramonocotyle Johnston, 1934
Paramonorcheides Yamaguti, 1938
Paramonostomoides Yamaguti, 1971
Paramphistomacotyle Mehra, 1980
Paramphistomoides Yamaguti, 1958
Paramphocleithrium Suriano & Incorvaia, 1995
Paranaella Kohn, Baptista-Farias & Cohen, 2000
Paranematobothrium Nikolaeva & Tkachuk, 1979
Paraneocreadium Kruse, 1978
Paraneohaliotrema Zhukov, 1976
Paraneophasis Gupta & Jain, 1991
Parangiodictyum Mukherjee, 1993
Paraphilopinna Zhukov, 1971
Paraplagioporus Yamaguti, 1939
Paraplagiorchis Dollfus, 1924
Parapleorchis Al-Yamani & Nahhas, 1981
Paraplerurus Fischthal & Kuntz, 1963
Parapleurogonius Sullivan, 1976
Parapolystoma Ozaki, 1935
Paraproctotrematoides Nagaty & Abdel-Aal, 1972
Paraprosorhynchus Kohn, 1967
Paraprosorphynchus Kohn, 1967
Parapseudopolystoma Nasir & Fuentes Zambrano, 1984
Paraquadriacanthus Ergens, 1988
Pararhipidocotyle Kohn, 1970
Parasanguinicola Herbert & Shaharom, 1995
Paraschistometra Woodland, 1930
Paraschistosomatium Price, 1929
Parasteganoderma Machida & Araki, 1990
Parasterrhurus Manter, 1934
Paratanaisia Teixeira de Freitas, 1959
Paratelorchis Mehra & Bokhari, 1932
Paratetrabothrius Yamaguti, 1940
Paratetrochetus Hanson, 1955
Parathoracocotyle Deo & Karyakarte, 1982
Paratormopsolus Dubinina & Bychowsky, 1954
Paratylodelphus Saxena, 1952
Paravitellotrema Watson, 1976
Paraxine Gupta & Krishna, 1977
Parayamagutia Machida, 1971
Parazoogonus Wang, 1986
Parepibdella Johnston, 1929
Paropecoelus Pritchard, 1966
Paropisthorchis Stephens, 1912
Parorientodiscus Rohde, 1962
Parvacreadium Manter, 1940
Parvipyrum Pritchard, 1963
Patellokoellikeria Yamaguti, 1970
Paurophyllum Byrd, Parker & Reiber, 1940
Pedunculacetabulum Yamaguti, 1934
Pedunculotrema Fischthal & Thomas, 1970
Pellonicola Unnithan, 1967
Pentadion Saint-Rémy, 1891
Pernagmia Nagaty & Abdel Aal, 1961
Petalodistomum Johnston, 1913
Phanerothecium Kritsky & Thatcher, 1977
Pharyngora Lebour, 1908
Philline Parona & Perugia, 1890
Phillines Westwood, 1840
Phillonella Monticelli, 1891
Philocorydoras Suriano, 1986
Philopinna Yamaguti, 1936
Philura MacCallum, 1926
Philureter Viozzi & Gutierrez, 2001
Pholeohedra Cribb, Pichelin & Bray, 1998
Phrynobatrachotrema Goodman, 1986
Phyllochorus Dayal, 1938
Phyllocotyle Beneden & Hesse, 1863
Phyllodistomoides Brooks, 1977
Phyllonella Beneden & Hesse, 1863
Phyllotrema Yamaguti, 1934
Phylonella Lorenz, 1878
Physochoerus Poche, 1926
Pinguitrema Siddiqi & Cable, 1960
Pintneria Poche, 1907
Piriforma Yamaguti, 1938
Pirupalkia Puga & Figueroa, 1989
Pithanothecium Kritsky, Boeger & Jegu, 1997
Placodiscus Paperna, 1972
Placoplectanum Diesing, 1858
Placotrema Looss, 1907
Placunella Beneden & Hesse, 1863
Plagiopeltis Diesing, 1850
Plagiorchiida La Rue, 1957
Plagiorchoides Olsen, 1937
Plasmiorchis Mehra, 1934
Platocystoides Madhavi, 1982
Platyamphistoma Yamaguti, 1958
Platyaspis Monticelli, 1892
Platycladorchis Sey, 1986
Platycolyle Monticelli, 1888
Platycotyle Beneden & Hesse, 1863
Platymetra Mehra, 1931
Platynosomoides Yamaguti, 1971
Platynotrema Nicoll, 1914
Plectanophora Beneden & Hesse, 1863
Plectanophorus Diesing, 1858
Plehniella Szidat, 1951
Plenosoma Ching, 1960
Plenosominoides Ke & Liang Chi, 1984
Plesiocreadium Winfield, 1929
Plesiodistomum Dayal, 1949
Pleurocotyle Gervais & Beneden, 1859
Pleurocotylus Gervais & Beneden, 1859
Pleurolobatus Kaw, 1944
Pleuropsoloides Goodman, 1990
Pleuropsolus Mehra, 1935
Plicatrium Manter & Pritchard, 1960
Pneumobites Ward, 1917
Pneumotrema Bhalerao, 1937
Podocnemitrema Alho & Vincente, 1964
Podospathalium Dubois, 1932
Pojmanskia Zamparo, Brooks & Causey, 2003
Polyangium Looss, 1902
Polygorgyra Blair, 1986
Polylecithus Wang Puqin & Wang Yanyin, 1993
Polyopisthocotylea Odhner, 1912
Polyorchis Stossich, 1888
Polyorchitrema Srivastava, 1937
Polyporus Grube, 1840
Polysarcus Looss, 1899
Porphyriotrema Duggal & Toor, 1986
Posthodiplostomoides Williams, 1969
Postmonorcheides Szidat, 1950
Postodera Pigulevsky, 1952
Postpharyngeum Witenberg, 1925
Potamogenes Feng & Wang, 1997
Potamotrygonocotyle Mayes, Brooks & Thorson, 1981
Praeorchitrema Oshmarin, 1952
Pretestis Angel & Manter, 1972
Primatotrema Premvati, 1958
Prionosomoides Freitas & Dobbin, 1967
Pristiosomum Fuhrmann, 1928
Pristisomum Looss, 1907
Pristotrema Cable, 1952
Proacetabulorchis Gogate, 1940
Proacetabulorchoides Oshmarin, 1970
Proalaria La Rue, 1926
Proalarioides Yamaguti, 1933
Procerozoum Kamegai, 1971
Prochiorchis Dollfus, 1963
Prochoanochenia Yang, 1965
Procreadium Mehra, 1962
Procyonophilus Thatcher, 1982
Prodiplostomum Ciurea, 1933
Proechimytrema Thatcher, 1982
Proechinocephalus Srivastava, 1958
Proeputiodiplostomum Gupta, 1962
Progenarchopsis Fischthal, 1976
Progonimodiscus Vercammen-Grandjean, 1960
Progorgodera Brooks & Buckner, 1976
Progyliauchen Shalaby & Hassanine, 1997
Prohaplosplanchnus Tang Zhongzhang & Lin Xiuming, 1978
Prolabria Reimer, 1987
Prolateroporus Yamaguti, 1971
Prolecithochirium Yamaguti, 1970
Prolobodiplostomum Baer, 1959
Promicrophallus Fischthal & Kuntz, 1981
Pronamphistoma Thatcher, 1992
Proneochasmus Szidat, 1954
Pronopharynx Cohn, 1904
Pronopyge Looss, 1899
Proparorchis Ward, 1921
Propycnadenoides Fischthal & Kuntz, 1964
Proschistosoma Grétillat, 1962
Proshystera Korkhaus, 1930
Prosostephanus Lutz, 1935
Prostatomicrocotyla Yamaguti, 1968
Prosterrhurus Fischthal & Kuntz, 1963
Prosthometra Looss, 1896
Prostorchigenes Tubangui, 1928
Protenteron Stafford, 1904
Proterodiplostomatidae
Proterodiplostomidae Dubois, 1936
Protoancylodiscoides Paperna, 1969
Protocladorchis Willey, 1935
Protofasciola Odhner, 1926
Protofasciolopsis Odhner
Protorhinoxenus Domingues & Boeger, 2002
Prouterina Foreyt, Schell & Beyer, 1996
Provitellus Dove & Cribb, 1998
Prudhoella Beverley-Burton, 1960
Prymnoprion Looss, 1899
Psettarioides Lebedev & Parukhin, 1972
Pseudalassostoma Yamaguti, 1958
Pseudallassostomoides Yamaguti, 1971
Pseudallobenedenia Yamaguti, 1966
Pseudamphibdella Yamaguti, 1958
Pseudancylodiscoides Yamaguti, 1963
Pseudancyrocephalus Yamaguti, 1968
Pseudartyfechinostomum Bhardwaj, 1963
Pseudathesmia Travassos, 1942
Pseudazygia Yamaguti, 1971
Pseudechinostomum Odhner, 1911
Pseudexorchis Yamaguti, 1938
Pseudisorchis Ahmad, 1985
Pseudoallocreadium Yamaguti, 1971
Pseudoanisocoelium Gupta & Tandon, 1985
Pseudobarisomum Siddiqi & Cable, 1960
Pseudobenedeniella Timofeeva, Gaevskaya & Kovaleva, 1987
Pseudobenedenoides Szidat, 1969
Pseudobianium Sey, 1996
Pseudobothrium Gallien, 1937
Pseudobunocotyla Yamaguti, 1965
Pseudocalceostoma Yamaguti, 1963
Pseudocanthocolpus Soheir, Rabie & Ahmed, 2000
Pseudocardicola Parukhin, 1985
Pseudocarneophallus Yamaguti, 1971
Pseudocathaemasioides Saito & Fukumoto, 1972
Pseudocercocotyla Yamaguti, 1971
Pseudochiorchis Yamaguti, 1958
Pseudocladorchis Daday, 1907
Pseudocleptodiscus Caballero y Caballero, 1961
Pseudocoeliodidymocystis Shen Jiwei, 1990
Pseudocoitocaecum Bilqees, 1972
Pseudocolocyntotrema Yamaguti, 1970
Pseudocrocodilicola Byrd & Relber, 1941
Pseudocryptogonimus Khan & Bilqees, 1990
Pseudoctocotyla Yamaguti, 1938
Pseudocypseluritrema Paruchin, 1974
Pseudodichadena Yamaguti, 1971
Pseudodinosoma Yamaguti, 1970
Pseudodiplangus Yamaguti, 1971
Pseudodiplectanotrema Gerasev, Gayevskaya & Kovaleva, 1987
Pseudodiplodiscoides Murty, 1970
Pseudodiplodiscus Manter, 1962
Pseudodiplostomum Yamaguti, 1934
Pseudodiscocotyla Yamaguti, 1965
Pseudodiscus Sonsino, 1895
Pseudoechinochasmus Verma, 1936
Pseudoechinostomum
Pseudoeurysorchis Tantalean, 1975
Pseudofellodistomum Wang, 1987
Pseudoganeo Khomenovskij, 1971
Pseudogenarchopsis Yamaguti, 1971
Pseudoglossodiplostomum Dubois, 1944
Pseudogymnophallus Hoberg, 1981
Pseudohaliotrematoides Yamaguti, 1953
Pseudohaplorchis Dayal, 1949
Pseudohargisia Payne, 1987
Pseudoheterophyes Yamaguti, 1939
Pseudohypertrema Bilqees, 1976
Pseudohypocreadium Toman, 1989
Pseudolamellodiscoides Gupta & Krishna, 1980
Pseudolepocreadioides Hafeezullah, 1970
Pseudolevinseniella Tsdi, 1955
Pseudomagnivitellinum Dronen & Underwood, 1980
Pseudomegalocotyla Yamaguti, 1963
Pseudomegasolena Machida & Kamiya, 1976
Pseudomerizocotyle Kay, 1942
Pseudometadena Yamaguti, 1952
Pseudomicrobothrium Yamaguti, 1958
Pseudomonorcheides Zhukov, 1983
Pseudomorcheides Wang, 1982
Pseudoneobivagina Mamaev, 1986
Pseudoneodiplostomoides Yamaguti, 1954
Pseudonitzschia Yamaguti, 1965
Pseudonotoporus Ahmad, 1985
Pseudoorientocreadium Agrawal & Sharma, 1990
Pseudoorientodiscus Agrawal & Sharma, 1992
Pseudopalaeorchis Kamegai, 1970
Pseudoparabaris Yamaguti, 1958
Pseudoparamacroderoides Gupta & Agrawal, 1968
Pseudoparamphistoma Yamaguti, 1958
Pseudoparvumcreadium Caballero y Caballero, 1957
Pseudopecoelina Yamaguti, 1942
Pseudophyllodistomum Cribb, 1987
Pseudopisthogonoporus Yamaguti, 1970
Pseudopisthogyne Yamaguti, 1965
Pseudopisthomonorchis Madhavi, 1974
Pseudoplagioporus Yamaguti, 1938
Pseudoplagiorchis Yamaguti, 1971
Pseudopolystoma Yamaguti, 1963
Pseudoproctotrema Yamaguti, 1942
Pseudoprosthenhystera Kloss, 1966
Pseudopygidiopsis Yamaguti, 1971
Pseudoquinqueserialis Sutton, 1981
Pseudorchis Yamaguti, 1971
Pseudorenifer Price, 1935
Pseudoschikhobalotrema Yamaguti, 1971
Pseudoscolopacitrema Palmieri, Krishnasamy & Sullivan, 1979
Pseudosellacotyla Yamaguti, 1953
Pseudosiphoderoides Yamaguti, 1958
Pseudospelotrematoides Yamaguti, 1939
Pseudostomachicola Skryabin & Gushanskaya, 1954
Pseudostrigea Yamaguti, 1933
Pseudotelorchis Yamaguti, 1971
Pseudounicoelium Ahmad, 1987
Pseudozakia Machida & Araki, 1977
Pseudurorchis Yamaguti, 1971
Psilocollaris Singh, 1954
Psilolecithum Oshmarin, 1964
Psilolintonum Oshmarin, 1964
Ptacunella Massa, 1906
Pterocleidus Müller, 1937
Pterocotyle Beneden & Hesse, 1863
Pteronella Beneden & Hesse, 1863
Pterygotomaschalos Stunkard, 1923
Ptyasiorchis Mehra, 1937
Pulchrosomoides Freitas & Lent, 1937
Pulmovermis Coil & Kuntz, 1960
Puntiotrema Baugh & Chakrabarti, 1971
Qadriana Bilqees, 1971
Qasimmetra Sahai & Srivastava, 1978
Quadriacanthoides Kritsky & Kulo, 1988
Quadriacanthus Paperna, 1961
Quadripaludis Jiménez, Guajardo & Briseño, 1981
Quadrivalvula Gichenok, 1980
Quasimaritrema Deblock, 1973
Quasimaritremopsis Deblock, 1973
Queenslandisia Pearson & Deblock, 1987
Quilonella Lebedev & Parukhin, 1970
Rallitrema Travassos & Kohn, 1964
Rameshwarotrema Lakshman Rao, 1975
Raogaster Groschaft & Tenora, 1981
Rauschiella Babero, 1951
Redia Filippi, 1837
Reduxotrema Pigulevsky, 1952
Renigonius Mehra, 1939
Renivermis Blair, Purdie & Melville, 1989
Renodidymocystis Madhavi, 1982
Renschetrema Rohde, 1964
Repandum Byrd & Maples, 1963
Retevitellus Cable, Connor & Balling, 1960
Retrobulla Cribb, 1985
Reynoldstrema Cheng, 1959
Rhacophotrema Uchida, Itagaki & Inoue, 1980
Rhinonastes Kritsky, Thatcher & Boeger, 1988
Rhinoxenus Kritsky, Boeger & Thatcher, 1988
Rhodobilharzia Le Roux, 1958
Rhodotrema Odhner, 1911
Rhopalocera Filippi, 1854
Rhopalocerca Diesing, 1850
Rhopalophorus Diesing, 1850
Rhopalotrema Anderson, 1998
Rhoporhynchus Wang & Wang, 1998
Rhynchocreadium Srivastava, 1962
Rhyncostophallus Deblock & Canaris, 1997
Ridgeworthia Verma, 1936
Rondotrema Thatcher, 1999
Ropalocera Filippi, 1854
Roparhynchus Gupta & Kumari, 1978
Rudolphiella Travassos, 1924
Rudolphinus Stunkard, 1974
Rudolphitrema Travassos, 1926
Ruffetrema Saxena & Singh, 1982
Rugocavum Bray & Cribb, 1997
Rutschurutrema Baer, 1959
Ryjikovia Gajevskaja & Aljoshkina, 1985
Sacculoacetabulum Machida & Kuramochi, 1999
Sacculoesophagiphora Gu Changtung & Shen Jiwei, 1978
Sagittotrema Bondarenko, 1966
Salmonchus Spasski & Roitman, 1958
Sandonia McClelland, 1957
Santeria Bray, 1986
Sarumitrema Beverley-Burton, 1963
Satyanarayanotrema Simha & Chattopadhyaya, 1980
Satyapalia Lakshminarayana & Hafeezullah, 1974
Sauricotyle Unnithan, 1972
Sawqirahcotyle Lebedev, 1976
Scapanosoma Lühe, 1909
Scaphatrema Bray & Cribb, 1997
Schiginella Karmanova, 1974
Schilbetrema Paperna & Thurston, 1968
Schisturus Rudolphi, 1809
Schizocerca Diesing, 1858
Schwartziella Vigueras, 1940
Schwartzitrema Vigueras, 1941
Sciaenacotyle Mamaev, 1989
Scintillovulva Unnithan, 1971
Sclerocleidoides Agarwal, Yadav & Kritsky, 2001
Sclerodistomoides Kamegai, 1971
Scleroductus Jara & Cone, 1989
Scomberocola Unnithan, 1964
Sebasticotyle Mamaev & Egorova, 1977
Serpentinotrema Travassos & Kohn, 1964
Sharmaia Yamaguti, 1958
Shistura Fleming, 1822
Shobanatrema Simha & Chattopadhyaya, 1980
Sicuotrema Yamaguti, 1970
Sigmapera Nicoll, 1918
Silonditrema Tripathi, 1959
Simhatrema Chattopadhyaya, 1971
Sindiplozoon Khotenovsky, 1981
Singhia Yamaguti, 1958
Singhiatrema Simha, 1954
Singhiogyrus Venkatanarsaiah & Kulharni, 1980
Sinineobucephalopsis Zhang, Pan & Li, 1987
Sinistroporus Stafford, 1904
Sinobilharzia Dutt & Srivastava, 1955
Sinogastromyzontrema Li, Zhang & Li, 1988
Sinuosoides Denton & Krissinger, 1975
Siphoderoides Manter, 1940
Skrjabiniella Issaitschikow, 1928
Skrjabinocoelum Kurashvili, 1953
Skrjabinodendrium Skarbilovitch, 1943
Skrjabinosomum Skrjabin, 1944
Sobolevistoma Sudarikov, 1950
Solenocerca Diesing, 1855
Solenocotyle Diesing, 1850
Solenorchis Hilmy, 1949
Sonkulitrema Ablasov & Chibichenko, 1960
Sorexegliphe Sadovskaya, 1954
Spaniometra Kossack, 1911
Spathidium Looss, 1899
Spelophallus Jägerskiöld, 1908
Sphericomonorchis Thatcher, 1996
Sphincterodiplostomum Dubois, 1936
Spinoderetrema Bray, 1987
Spinometra Mehra, 1931
Spiritestis Nagaty, 1948
Sporocerca Diesing, 1855
Sporocistis Monticelli, 1888
Sporocystis Filippi, 1854
Sporocystophora Diesing, 1858
Sporonema Diesing, 1855
Sporotherium Diesing, 1858
Squamacola Pan & Wang, 1985
Squamodiscus Yamaguti, 1934
Squaroacetabulum Simha & Chattopadhyaya, 1970
Srivastavaia Singh, 1970
Staffordiella Mehra, 1966
Stamnosoma Tanabe, 1922
Stamparia Nezlobinski, 1926
Stegodexamene Macfarlane, 1951
Stegopa Linton, 1910
Stellantchasmus Onji & Nishio, 1924
Stemmatostoma Cribb, 1986
Stenocollum Stafford, 1904
Stenopera Manter, 1933
Stephanolecithus Nakagawa, 1919
Stephanopharynx Fischoeder, 1901
Stephanophiala Nicoll, 1909
Stephanopirumus Onji & Nishio, 1924
Stephanostomoides Mamaev & Oshmarin, 1967
Sterrhurina Abdel Aal, Banaja & Al Zanbagi, 1984
Sticholecitha Prudhoe, 1949
Stomylus Looss, 1899
Stossichiella Orecchia & Paggi, 1964
Streptovitella Swales, 1933
Strigeata
Strigeatida (Larue, 1926) Sudarikov, 1959
Strzeleckia Cribb & Spratt, 1991
Stunkardia Bhalerao, 1927
Sturniratrema Velez & Thatcher, 1992
Subuvulifer Dubois, 1952
Suchocyathocotyle Dubois, 1984
Sundanonchidae
Sureshiella Srivastava, Maurya & Prasad, 1980
Swakopella Lebedev & Parukhin, 1969
Symmetricatesticula Krasnolobova, 1976
Syncoelicotyle Mamaev & Zubchenko, 1978
Syncoelicotyloides Mamaev & Brashovian, 1989
Synechorchis Barker, 1922
Synethes Stiles & Goldberger, 1910
Synodontella Dossou & Euzet, 1993
Szidatiella Yamaguti, 1958
Szidatitrema Yamaguti, 1971
Tagumaea Fukui, 1930
Taiwantrema Fischthal & Kuntz, 1981
Tandemorchis Lu, 1993
Taphrogonymus Cohn, 1904
Taphyrogonimus Fuhrmann, 1928
Tareenia Hussey, 1986
Tegumaea Fuhrmann, 1928
Telethecium Kritsky, Van Every & Boeger, 1996
Telogonella Mehra & Negi, 1928
Teloporia Fukui, 1933
Telorhynchoides Lebedev, 1968
Tenuifasciola Yamaguti, 1971
Teratotrema Travassos, Artigas & Pereira, 1928
Tereancistrum Kritsky, Thatcher & Kayton, 1980
Tergestina Nagaty & Abdel Aal, 1964
Terminoisocoelium Gu Changtung & Shen Jiwei, 1978
Testiculoporus Kinsella & Deblock, 1997
Testifrondosa Bhalerao, 1924
Testisaculus Bhalerao, 1927
Testucaria Rudolphi, 1805
Tetracerasta Watson, 1984
Tetracleidus Müller, 1936
Tetrapapillatrema Ralph, 1938
Tetrasepta Suriano, 1975
Tetrastoma Chiaje, 1833
Tetrastomum Diesing, 1850
Thailandobilharzia Baugh, 1977
Thaparotrema Gupta & Krisha, 1982
Thecosoma Moquin-Tandon, 1860
Theledera Linton, 1910
Theriodiplostomum Dubois, 1944
Thexosoma Montgomery, 1906
Thrascia Gistl, 1848
Thrinascotrema Jue Sue & Platt, 1999
Thulakiotrema Deblock, Williams & Evans, 1991
Thylacicleidus Wheeler & Klassen, 1988
Thylogaster Stiles & Goldberger, 1910
Tigrotrema Bhadauria & Dandotia, 1985
Timofeevia Chisholm, Wheeler & Beverley-Burton, 1995
Tocotrema Looss, 1899
Topsiturvitrema Velez & Thatcher, 1992
Transversocreadium Hafeezullah, 1970
Transversohelmins Fischthal & Kuntz, 1973
Transversolecithus Sahai & Srivastava, 1978
Travassasella Faust & Tang, 1938
Travassodendrium Skarbilovitch, 1943
Travassosina Vaz, 1932
Travassosstomum Bhalerao, 1938
Travassostrema Rebecq, 1962
Tremapoleipsis Baer, 1959
Tremarhynchus Thapar, 1933
Trematichtys Vaz, 1932
Trianchoratus Price & Berry, 1966
Tribuliphorus Mamaev & Paruchin, 1977
Trifolium Travassos, 1922
Triglicoloides Mamaev & Parukhin, 1971
Trigonocryptus Martin, 1958
Trigonotrema Goto & Ozaki, 1929
Trilecithotrema Gu Changdong & Shen Jiwei, 1981
Triloborchidiplostomum Dubois & Angel, 1972
Trinibaculum Kritsky, Thatcher & Kayton, 1980
Trinidactylus Hanek, Molnar & Fernando, 1974
Trinigyrus Hanek, Molnar & Fernando, 1974
Trionchus MacCallum, 1916
Trionychotrema Jin Daxiong & Zhang Jianying, 1981
Tripathia Yamaguti, 1963
Triplocystoides Yamaguti, 1970
Triplostomum Lutz, 1935
Tritesticulum Bilqees, 1971
Troglocephalus Young, 1967
Tubangorchis Skrjabin, 1944
Tumaclinostomum Van der Kuyp, 1953
Turbinilla Bory de St. Vincent, 1823
Turquinia Coy Otero, 1989
Tympanocirrus Tripathi, 1959
Typhlophilus Lal, 1936
Typhlultimum Witenberg, 1923
Ugandalubens Goodman, 1988
Ugandocotyle Näsmark, 1937
Ultragenotrema Skrjabin & Baskakow, 1925
Unibarra Suriano & Incorvaia, 1995
Unicoelium Thatcher & Dossman, 1975
Unilatus Mizelle & Kritsky, 1967
Unistriata Filimonova, 1985
Unnithanaxine Price, 1962
Upenicoloides Vijayalalitha Kumari, 1976
Urogyrus Bilong Bilong, Birgi & Euzet, 1994
Urorchis Ozaki, 1927
Uterotrema Platt & Pichelin, 1994
Vaginaespina Tripathi, 1956
Vancleaveus Kritsky, Thatcher & Boeger, 1986
Varelacreptotrema Gomes & de Fabio, 1971
Velamenophorus Mendheim, 1941
Velasquezotrema Eduardo & Javellana, 1987
Vermatrema Srivastava, 1974
Verodunia Lahille & Joan, 1918
Vesperugidendrium Pande, 1937
Vietosoma Van Cleave & Müller, 1932
Virgulina Bory de St.-Vincent, 1823
Vitellarinus Zmejev, 1936
Vitellariotrema Gupta & Krishna, 1977
Vitellatus Ke, 1979
Voelkeria Travassos & Kohn, 1966
Voitrema Yamaguti, 1971
Vulvostella Unnithan, 1971
Wallagotrema Tripathi, 1959
Walliniella Yamaguti, 1971
Watsonius Stiles & Goldberger, 1910
Wellmanius Stiles & Goldberger, 1910
Wetapolystoma Gray, 1993
Wetzelitrema Rayski & Fahmy, 1962
Wilderia Pratt, 1917
Witenbergia Vaz, 1932
Wrightrenicola Odening, 1962
Xenodistomum Stafford, 1904
Xenopera Nicoll, 1915
Xenopharynx Nicoll, 1912
Xenopodistomum Macnae, Rock & Makowski, 1973
Xiphidiocercaria Diesing, 1855
Yamagutia Srivastava, 1937
Yamaguticystis Nikolaeva & Dubina, 1978
Yamagutiplectognathotrema Parukhin, 1977
Yogendrotrema Kumar & Agarwal, 1983
Yokogawa Leiper, 1913
Zeferinella Artigas & Paulino, 1988
Zeicotyle Mamaev, 1976
Zetamphistoma Thatcher & Jegu, 1996
Zeugorchis Stafford, 1905
Zeylanurotrema Crusz & Sanmugasunderam, 1974
Zonocotyle Travassos, 1947
Zonocotyloides Padilha, 1978
Zoonogenus Nicoll, 1912
Zoosperma Bory de St Vincent, 1823
Zoospermos Bory de St. Vincent, 1827
Zygodendrium Salem, 1976
- Trematoda Rudolphi, 1808