Allassostoma Stunkard, 1916 (identification resource)
Allassostoma magnum Stunkard, 1916 (redescription)
Allassostomoides Stunkard, 1924 (identification resource)
Allassostomoides parvus (Stunkard, 1916) Stunkard, 1924 (redescription)
Allassostomoides stunkardi (Holl, 1929) Skrjabin, 1949 accepted as Pisciamphistoma stunkardi (Holl, 1929) Yamaguti, 1954 (redescription)
Allassostomoides stunkardi (Holl, 1929) Skrjabin, 1949 accepted as Pisciamphistoma stunkardi (Holl, 1929) Yamaguti, 1954 (new combination reference)
Angiodictyum Looss, 1902 (identification resource)
Angiodictyum parallelum (Looss, 1901) Looss, 1902 (redescription)
Brachyphallus crenatus (Rudolphi, 1802) Odhner, 1905 (additional source)
Chiorchis Fischoeder, 1901 (identification resource)
Chiorchis fabaceus (Diesing, 1838) Fischoeder, 1901 (redescription)
Chiostichorchis Artigas & Pacheco, 1933 (identification resource)
Cladorchiidae Fischoeder, 1901 (identification resource)
Cladorchiinae Fischoeder, 1901 (identification resource)
Cladorchis Fischoeder, 1901 (identification resource)
Cleptodiscinae Skrjabin, 1949 accepted as Dadayiinae Fukui, 1929 (original description)
Cleptodiscus Linton, 1910 (identification resource)
Cleptodiscus reticulatus Linton, 1910 (redescription)
Dadayius Fukui, 1929 (identification resource)
Dadayius marenzelleri (Daday, 1907) Fukui, 1929 (redescription)
Dadaytrema Travassos, 1931 (identification resource)
Dadaytrema elongata Vaz, 1932 accepted as Dadaytrema elongatum Vaz, 1932 accepted as Dadaytrema oxycephalum (Diesing, 1850) Vaz, 1932 (redescription)
Dadaytrema minima Vaz, 1932 accepted as Dadaytrema minimum Vaz, 1932 (redescription)
Dadaytrema oxycephalum (Diesing, 1850) Vaz, 1932 (redescription)
Deuterobaris Looss, 1900 (identification resource)
Deuterobaris proteus (Brandes, 1891) Looss, 1902 (redescription)
Diplodiscidae Cohn, 1904 (identification resource)
Diplodiscus Diesing, 1836 (identification resource)
Diplodiscus amphichrus Tubangui, 1933 (redescription)
Diplodiscus mehrai Pande, 1937 (redescription)
Gyliauchen Nicoll, 1915 (identification resource)
Gyliauchen ozakii Srivastava, 1938 (redescription)
Gyliauchen papillatus (Goto & Matsudaira, 1918) Goto, 1919 (redescription)
Gyliauchen tarachodes Nicoll, 1915 (redescription)
Gyliauchenoidea Skrjabin, 1949 accepted as Lepocreadioidea Odhner, 1905 (original description)
Halltrema avitellinum Lent & Teixeira de Freitas, 1939 (redescription)
Helostomatinae Skrjabin, 1949 (original description)
Helostomatis Fukui, 1929 (identification resource)
Helostomatis helostomatis (MacCallum, 1905) Travassos, 1934 (redescription)
Helostomatis sakrei Bhalerao, 1937 (redescription)
Hexangitrema Price, 1937 (identification resource)
Hexangitrema pomacanthi Price, 1937 (redescription)
Hexangium Goto & Ozaki, 1929 (identification resource)
Hexangium secundum Annereaux, 1947 accepted as Hexangium sigani Goto & Ozaki, 1929 (redescription)
Hexangium sigani Goto & Ozaki, 1929 (redescription)
Kalitrema Travassos, 1933 (identification resource)
Kalitrema kalitrema Travassos, 1933 (redescription)
Kalitrematinae Travassos, 1933 (identification resource)
Megalodiscus Chandler, 1923 (identification resource)
Megalodiscus americanus Chandler, 1923 (redescription)
Megalodiscus intermedius (Hunter, 1930) Harwood, 1932 (redescription)
Megalodiscus microphagus Inglis, 1936 accepted as Ophioxenos microphagus (Ingles, 1936) Beverley-Burton, 1987 (redescription)
Megalodiscus rankini Bravo-Hollis, 1941 (redescription)
Megalodiscus temperatus (Stafford, 1905) Harwood, 1932 (redescription)
Metacetabulidae Teixeira de Freitas & Lent, 1938 accepted as Pronocephalidae Looss, 1899 (identification resource)
Metacetabulum Teixeira de Freitas & Lent, 1938 (identification resource)
Metacetabulum invaginatum Teixeira de Freitas & Lent, 1938 (redescription)
Microrchis Daday, 1907 (identification resource)
Microrchis ferrumequinum (Diesing, 1836) Daday, 1906 accepted as Pseudocladorchis ferrumequinum (Diesing, 1836) Stunkard, 1925 accepted as Pseudocladorchis ferrumequinus (Diesing, 1836) Stunkard, 1925 (redescription)
Microrchis megacotyle (Diesing, 1836) Daday, 1907 (redescription)
Microscaphidiidae Looss, 1900 (identification resource)
Microscaphidioidea Looss, 1900 accepted as Paramphistomoidea Fischoeder, 1901 (identification resource)
Microscaphidium Looss, 1900 (identification resource)
Microscaphidium aberrans Looss, 1902 (redescription)
Microscaphidium reticulare (Van Beneden, 1859) Looss, 1901 (redescription)
Nematophila Travassos, 1934 (identification resource)
Nematophila grandis (Diesing, 1839) Travassos, 1934 (redescription)
Nematophilinae Skrjabin, 1949 accepted as Schizamphistominae Looss, 1912 (original description)
Neocladorchis Bhalerao, 1937 (identification resource)
Neocladorchis burti (Prudhoe, 1944) Skrjabin, 1949 accepted as Pseudochiorchis burti (Prudhoe, 1944) Yamaguti, 1958 accepted as Stunkardia burti (Prudhoe, 1944) (new combination reference)
Neocladorchis burti (Prudhoe, 1944) Skrjabin, 1949 accepted as Pseudochiorchis burti (Prudhoe, 1944) Yamaguti, 1958 accepted as Stunkardia burti (Prudhoe, 1944) (redescription)
Neocladorchis poonaensis Bhalerao, 1937 accepted as Cleptodiscus poonensis (Bhalerao, 1937) (redescription)
Neoctangium Ruiz, 1943 (identification resource)
Neoctangium travassosi Ruiz, 1943 (redescription)
Nicollodiscinae Skrjabin, 1949 accepted as Kalitrematinae Travassos, 1933 (original description)
Nicollodiscus Srivastava, 1938 (identification resource)
Nicollodiscus gangeticus Srivastava, 1938 (redescription)
Octangioides Price, 1937 (identification resource)
Octangioides skrjabini Price, 1937 (redescription)
Octangium Looss, 1902 (identification resource)
Octangium hasta Looss, 1902 accepted as Octangium sagitta (Looss, 1899) Looss, 1902 (redescription)
Octangium sagitta (Looss, 1899) Looss, 1902 (redescription)
Octangium takanoi Kobayashi, 1921 accepted as Octangium sagitta (Looss, 1899) Looss, 1902 (redescription)
Ophioxenos Sumwalt, 1926 (identification resource)
Ophioxenos dienteros Sumwalt, 1926 (redescription)
Opisthodiscinae Skrjabin, 1949 accepted as Schizamphistominae Looss, 1912 (original description)
Opisthodiscus Cohn, 1904 (identification resource)
Opisthodiscus diplodiscoides Cohn, 1904 (redescription)
Orientodiscus Srivastava, 1938 (identification resource)
Orientodiscus jumnai Srivastava, 1938 (redescription)
Orientodiscus lobatum Srivastava, 1938 (redescription)
Parabaris Travassos, 1922 accepted as Pseudoparabaris Yamaguti, 1958 (identification resource)
Parabaris parabaris Travassos, 1922 accepted as Pseudoparabaris parabaris (Travassos, 1922) Yamaguti, 1958 (redescription)
Parabaris quadrangulatum (Daday, 1906) Travassos, 1934 accepted as Denticauda quadrangulata (Daday, 1906) Fukui, 1929 (redescription)
Paragyliauchen Yamaguti, 1934 (identification resource)
Paragyliauchen chaetodontis Yamaguti, 1934 (redescription)
Paramphistomidae Fischoeder, 1901 (identification resource)
Paramphistomoidea Fischoeder, 1901 (identification resource)
Paramphistomum Fischoeder, 1901 (identification resource)
Polyangium Looss, 1902 (identification resource)

Africa for Chiorchis fabaceus (Diesing, 1838) Fischoeder, 1901 
Brazil for Dadaytrema elongata Vaz, 1932 
Brazil for Halltrema avitellinum Lent & Teixeira de Freitas, 1939 
Brazil for Kalitrema kalitrema Travassos, 1933 
Brazil for Parabaris parabaris Travassos, 1922 
Brazil for Parabaris quadrangulatum (Daday, 1906) Travassos, 1934 
Brazilian Exclusive Economic Zone for Neoctangium travassosi Ruiz, 1943 
Brazilian Exclusive Economic Zone for Polyangium linguatula (Looss, 1899) Looss, 1902 
California for Megalodiscus microphagus Inglis, 1936 
Egyptian Exclusive Economic Zone for Angiodictyum parallelum (Looss, 1901) Looss, 1902 
Egyptian Exclusive Economic Zone for Microscaphidium aberrans Looss, 1902 
Egyptian Exclusive Economic Zone for Polyangium linguatula (Looss, 1899) Looss, 1902 
Egyptian Exclusive Economic Zone for Schizamphistomoides spinulosus (Looss, 1901) Stunkard, 1925 
Europe for Opisthodiscus diplodiscoides Cohn, 1904 
Europe for Polyangium colymbi (Poche, 1926) Price, 1937 
India for Diplodiscus mehrai Pande, 1937 
India for Nicollodiscus gangeticus Srivastava, 1938 
India for Stunkardia dilymphosa Bhalerao, 1931 
Louisiana for Megalodiscus americanus Chandler, 1923 
Malay Peninsula for Quasichiorchis purvisi (Southwell & Kirshner, 1937) Skrjabin, 1949 
Mediterranean Sea for Deuterobaris proteus (Brandes, 1891) Looss, 1902 
Mediterranean Sea for Microscaphidium reticulare (Van Beneden, 1859) Looss, 1901 
Mediterranean Sea for Octangium hasta Looss, 1902 
Mediterranean Sea for Octangium sagitta (Looss, 1899) Looss, 1902 
Mexico for Octangioides skrjabini Price, 1937 
Mexico for Parachiorchis parviacetabulatus Caballero, 1943 
Mexico for Schizamphistomoides tabascensis Caballero y. C. & Sokoloff, 1934 
Mumbai for Diplodiscus amphichrus Tubangui, 1933 
North America for Allassostoma magnum Stunkard, 1916 
North America for Chiorchis fabaceus (Diesing, 1838) Fischoeder, 1901 
North America for Megalodiscus intermedius (Hunter, 1930) Harwood, 1932 
North America for Megalodiscus temperatus (Stafford, 1905) Harwood, 1932 
North Carolina for Megalodiscus rankini Bravo-Hollis, 1941 
Paraguay for Travassosinia dilatata (Daday, 1907) Vaz, 1932 
Philippines for Diplodiscus amphichrus Tubangui, 1933 
Singapore for Octangium takanoi Kobayashi, 1921 
Singaporean Exclusive Economic Zone for Polyangium miyajimai Kobayashi, 1915 
South America for Chiorchis fabaceus (Diesing, 1838) Fischoeder, 1901 
South America for Dadayius marenzelleri (Daday, 1907) Fukui, 1929 
South America for Dadaytrema oxycephalum (Diesing, 1850) Vaz, 1932 
South America for Microrchis ferrumequinum (Diesing, 1836) Daday, 1906 
South America for Microrchis megacotyle (Diesing, 1836) Daday, 1907 
South America for Pseudocladorchis cylindricus (Diesing, 1836) Daday, 1907 
South America for Pseudocladorchis macrostomus Daday, 1907 
Sri Lanka for Neocladorchis burti (Prudhoe, 1944) Skrjabin, 1949 
Sri Lankan Exclusive Economic Zone for Schizamphistomum scleroporum (Creplin, 1844) Looss, 1912 
Sumatera for Helostomatis helostomatis (MacCallum, 1905) Travassos, 1934 
Tanzania for Schizamphistomoides constrictus Price, 1936 
United States Exclusive Economic Zone for Hexangitrema pomacanthi Price, 1937 
USA for Allassostomoides stunkardi (Holl, 1929) Skrjabin, 1949 
USA for Ophioxenos dienteros Sumwalt, 1926 
White Sea for Brachyphallus crenatus (Rudolphi, 1802) Odhner, 1905