Anisoporus Ozaki, 1928 (identification resource)
Anisoporus cobraeformis Ozaki, 1928 (redescription)
Anomalotrema Zhukov, 1957 (identification resource)
Anomalotrema putjatini Zhukov, 1957 (redescription)
Dideutosaccus Acena, 1941 accepted as Podocotyle Dujardin, 1845 (identification resource)
Dideutosaccus radifistuli Acena, 1941 accepted as Opecoelina radifistuli (Acena, 1941) Yamaguti, 1958 accepted as Podocotyle radifistuli (Acena, 1941) Gibson & Bray, 1984 (redescription)
Fimbriatus von Wicklen, 1946 accepted as Opecoeloides Odhner, 1928 (identification resource)
Fimbriatus fimbriatus (Linton, 1934) von Wicklen, 1946 accepted as Opecoeloides fimbriatus (Linton, 1934) Sogandares-Bernal & Hutton, 1959 (redescription)
Genitocotyle Park, 1937 (identification resource)
Genitocotyle acirrus Park, 1937 (redescription)
Genitocotyle atlantica Manter, 1947 (redescription)
Genitocotyle heterostichi Montgomery, 1957 (redescription)
Genitocotylinae Skrjabin & Petrov, 1958 accepted as Opecoelinae Ozaki, 1925 (original description)
Horatrema Srivastava, 1942 accepted as Notoporus Yamaguti, 1938 (identification resource)
Horatrema crassum Manter, 1947 accepted as Manteriella crassa (Manter, 1947) Yamaguti, 1958 (redescription)
Horatrematinae Srivastava, 1942 accepted as Opecoelinae Ozaki, 1925 (identification resource)
Lucknoides Gupta, 1955 accepted as Neopecoelina Gupta, 1955 (identification resource)
Lucknoides cavasiusi Gupta, 1955 accepted as Neopecoelina cavasiusi (Gupta, 1955) Yamaguti, 1958 (identification resource)
Megacreadium Nagaty, 1956 accepted as Schistorchis Lühe, 1906 (identification resource)
Megacreadium tetrodontis Nagaty, 1956 accepted as Schistorchis tetrodontis (Nagaty, 1956) Blend, Karar & Dronen, 2017 (redescription)
Neonotoporus Srivastava, 1942 (identification resource)
Neonotoporus carangis (Yamaguti, 1951) Skrjabin & Petrov, 1958 (redescription)
Neonotoporus carangis (Yamaguti, 1951) Skrjabin & Petrov, 1958 (new combination reference)
Neonotoporus trachuri (Yamaguti, 1938) Srivastava, 1942 (redescription)
Neonotoporus yamagutii Manter, 1947 (redescription)
Neopecoelina Gupta, 1955 (identification resource)
Neopecoelina saharanpurensis Gupta, 1955 (redescription)
Neopecoelus Manter, 1947 accepted as Pseudopecoelus von Wicklen, 1946 (identification resource)
Neopecoelus holocentri Manter, 1947 accepted as Apertile holocentri (Manter, 1947) Overstreet, 1969 (redescription)
Neopecoelus scorpaenae Manter, 1947 accepted as Pseudopecoelus scorpaenae (Manter, 1947) Overstreet, 1969 (redescription)
Notoporinae Yamaguti, 1938 accepted as Opecoelinae Ozaki, 1925 (identification resource)
Notoporus Yamaguti, 1938 (identification resource)
Notoporus leiognathi Yamaguti, 1938 (redescription)
Opecoelidae Ozaki, 1925 (identification resource)
Opecoelina Manter, 1934 (identification resource)
Opecoelina helicoleni Manter, 1934 (redescription)
Opecoelina pacifica Manter, 1940 (redescription)
Opecoelina pharynmagna Annereaux, 1943 accepted as Podocotyle radifistuli (Acena, 1941) Gibson & Bray, 1984 (redescription)
Opecoelina scorpaenae Manter, 1934 (redescription)
Opecoelina theragrae Lloyd, 1938 accepted as Podocotyle theragrae (Lloyd, 1938) Gibson & Bray, 1984 (redescription)
Opecoelinae Ozaki, 1925 (identification resource)
Opecoeloides Odhner, 1928 (identification resource)
Opecoeloides brachyteleus Manter, 1947 (redescription)
Opecoeloides elongatus Manter, 1947 (redescription)
Opecoeloides eucinostomi (Manter, 1940) von Wicklen, 1946 (redescription)
Opecoeloides furcatus (Bremser in Rudolphi, 1819) Odhner, 1928 (redescription)
Opecoeloides manteri (Hunninen & Cable, 1940) Hunninen & Cable, 1941 (redescription)
Opecoeloides polyfimbriatus Read, 1947 (redescription)
Opecoeloides thyrinopsi (Manter, 1940) Skrjabin & Petrov, 1958 (new combination reference)
Opecoeloides thyrinopsi (Manter, 1940) Skrjabin & Petrov, 1958 (redescription)
Opecoeloides vitellosus (Linton, 1900) von Wicklen, 1946 (redescription)
Opecoelus Ozaki, 1925 (identification resource)
Opecoelus acutus (Manter, 1940) Manter, 1954 accepted as Opegaster acuta Manter, 1940 (redescription)
Opecoelus adelongatus Nagaty, 1954 accepted as Paropecoelus adelongatus (Nagaty, 1954) Pritchard, 1966 accepted as Paropecoelus elongatus (Ozaki, 1928) Pritchard, 1966 (redescription)
Opecoelus adsphaericus Manter & Van Cleave, 1951 (redescription)
Opecoelus elongatus Ozaki, 1928 accepted as Paropecoelus elongatus (Ozaki, 1928) Pritchard, 1966 (redescription)
Opecoelus goniistii Yamaguti, 1938 (redescription)
Opecoelus himezi Yamaguti, 1951 (redescription)
Opecoelus inimici Yamaguti, 1934 (redescription)
Opecoelus lobatus Ozaki, 1925 (redescription)
Opecoelus lotellae Manter, 1954 (redescription)
Opecoelus mexicanus Manter, 1940 (redescription)
Opecoelus minor Yamaguti, 1934 (redescription)
Opecoelus mutu Yamaguti, 1940 (redescription)
Opecoelus nipponicus Yamaguti, 1951 (redescription)
Opecoelus ozaki (Layman, 1930) Yamaguti, 1954 (redescription)
Opecoelus pentedactylus (Manter, 1940) Manter, 1954 (redescription)
Opecoelus piriformis Yamaguti, 1952 (redescription)
Opecoelus quadratus Ozaki, 1928 accepted as Paropecoelus quadratus (Ozaki, 1928) Shimazu & Machida, 1985 (redescription)
Opecoelus sebastodis Yamaguti, 1934 (redescription)
Opecoelus sphaericus Ozaki, 1925 (redescription)
Opecoelus tasmanicus Crowcroft, 1947 (redescription)
Opecoelus thapari Nagaty, 1954 accepted as Paropecoelus thapari (Nagaty, 1954) Pritchard, 1966 (redescription)
Opecoelus upenoidis Nagaty, 1954 accepted as Paropecoelus upenoidis (Nagaty, 1954) Pritchard, 1966 (redescription)
Opecoelus xenistii Manter, 1940 (redescription)
Opegaster Ozaki, 1928 (identification resource)
Opegaster apogonichthydis Yamaguti, 1938 (redescription)
Opegaster brevifistula Ozaki, 1928 (redescription)
Opegaster caulopsettae Manter, 1954 accepted as Opecoelus caulopsettae (Manter, 1954) Aken'Ova, 2007 (redescription)
Opegaster ditrematis Yamaguti, 1942 (redescription)
Opegaster gobii Yamaguti, 1952 (redescription)
Opegaster longivesicula Yamaguti, 1952 (redescription)
Opegaster lutiani Bravo-Hollis & Manter, 1957 (redescription)
Opegaster macrorchis Yamaguti, 1938 (redescription)
Opegaster mastacembalii Harshey, 1937 (redescription)
Opegaster mehrii Harshey, 1937 (redescription)
Opegaster ovatus Ozaki, 1928 accepted as Opegaster ovata Ozaki, 1928 (redescription)
Opegaster parapristipomatis Yamaguti, 1934 (redescription)
Opegaster plotosi Yamaguti, 1940 (redescription)
Opegaster rectus Ozaki, 1928 accepted as Opegaster recta Ozaki, 1928 (redescription)
Opegaster syngnathi Yamaguti, 1934 (redescription)
Opegaster synodi Manter, 1947 (redescription)
Opegaster tamori Yamaguti, 1938 (redescription)
Parvacreadium Manter, 1940 (identification resource)
Parvacreadium bifidum Manter, 1940 (redescription)
Pellamyzon Montgomery, 1957 (identification resource)
Pellamyzon sebastodis Montgomery, 1957 accepted as Pellamyzon abitionis (McFarlane, 1936) Gibson & Bray, 1982 (redescription)
Pseudopecoelina Yamaguti, 1942 (identification resource)
Pseudopecoelina dampieriae Yamaguti, 1942 (redescription)
Pseudopecoeloides Yamaguti, 1940 (identification resource)

Bassian for Opecoelus tasmanicus Crowcroft, 1947 
Bermuda for Pseudopecoelus barkeri Hanson, 1950 
Cook Strait for Opecoelus lotellae Manter, 1954 
Floridian for Genitocotyle atlantica Manter, 1947 
Floridian for Horatrema crassum Manter, 1947 
Floridian for Neonotoporus yamagutii Manter, 1947 
Floridian for Neopecoelus holocentri Manter, 1947 
Floridian for Neopecoelus scorpaenae Manter, 1947 
Floridian for Opecoelina helicoleni Manter, 1934 
Floridian for Opecoelina scorpaenae Manter, 1934 
Floridian for Opecoeloides brachyteleus Manter, 1947 
Floridian for Opecoeloides elongatus Manter, 1947 
Floridian for Opegaster synodi Manter, 1947 
Floridian for Pseudopecoeloides equesi Manter, 1947 
Floridian for Pseudopecoeloides gracilis Manter, 1947 
Floridian for Pseudopecoelus priacanthi (MacCallum, 1921) Manter, 1947 
Floridian for Pseudopecoelus tortugae von Wicklen, 1946 
Floridian for Pseudopecoelus vulgaris (Manter, 1934) von Wicklen, 1946 
Galapagos for Opecoelina pacifica Manter, 1940 
Galapagos for Opecoelus pentedactylus (Manter, 1940) Manter, 1954 
Galapagos for Opecoelus xenistii Manter, 1940 
Galapagos for Parvacreadium bifidum Manter, 1940 
Hawaii for Pseudopecoelus brevivesiculatus Hanson, 1955 
Japanese Exclusive Economic Zone for Neonotoporus carangis (Yamaguti, 1951) Skrjabin & Petrov, 1958 
Japanese Exclusive Economic Zone for Notoporus leiognathi Yamaguti, 1938 
Japanese Exclusive Economic Zone for Opecoelus elongatus Ozaki, 1928 
Japanese Exclusive Economic Zone for Opecoelus lobatus Ozaki, 1925 
Japanese Exclusive Economic Zone for Opecoelus minor Yamaguti, 1934 
Japanese Exclusive Economic Zone for Opecoelus mutu Yamaguti, 1940 
Japanese Exclusive Economic Zone for Opecoelus nipponicus Yamaguti, 1951 
Japanese Exclusive Economic Zone for Opecoelus sphaericus Ozaki, 1925 
Japanese Exclusive Economic Zone for Opegaster apogonichthydis Yamaguti, 1938 
Japanese Exclusive Economic Zone for Opegaster syngnathi Yamaguti, 1934 
New Zealand Exclusive Economic Zone for Pseudopecoelus vulgaris (Manter, 1934) von Wicklen, 1946 
Peter the Great Bay for Opecoelus ozaki (Layman, 1930) Yamaguti, 1954 
Red Sea for Megacreadium tetrodontis Nagaty, 1956 
Red Sea for Opecoelus adelongatus Nagaty, 1954 
Red Sea for Opecoelus thapari Nagaty, 1954 
Red Sea for Opecoelus upenoidis Nagaty, 1954 
Sea of Japan for Sphincterostoma branchiostegi Yamaguti, 1937 
Sulawesi Sea/Makassar Strait for Opecoelus piriformis Yamaguti, 1952 
Virginian for Opecoeloides manteri (Hunninen & Cable, 1940) Hunninen & Cable, 1941