Acanthocotyle Monticelli, 1888 (basis of record)
Acanthocotyle borealis Brinkmann, 1940 accepted as Acanthocotyle verrilli Goto, 1899 (basis of record)
Acanthocotyle elegans Monticelli, 1890 (basis of record)
Acanthocotyle lobianchi Monticelli, 1888 (basis of record)
Acanthocotyle monticellii Scott, 1902 (basis of record)
Acanthocotyle oligoterus Monticelli, 1899 accepted as Acanthocotyle lobianchi Monticelli, 1888 (basis of record)
Acanthocotylidae Monticelli, 1903 (basis of record)
Allencotyla Price, 1962 (basis of record)
Allencotyla mcintoshi Price, 1962 (basis of record)
Allodiclidophora Yamaguti, 1963 (basis of record)
Allodiclidophora squillarum (Parona & Perugia, 1889) Yamaguti, 1963 (basis of record)
Allopseudaxine Yamaguti, 1943 (basis of record)
Amphibdella Chatin, 1874 (basis of record)
Amphibdella flavolineata MacCallum, 1916 (basis of record)
Amphibdella paronaperugiae Llewellyn, 1960 (basis of record)
Amphibdella torpedinis Chatin, 1874 (basis of record)
Amphibdelloides Price, 1937 (basis of record)
Amphibdelloides maccallumi (Johnston & Tiegs, 1922) Price, 1937 (basis of record)
Amphibdelloides vallei Llewellyn, 1960 (basis of record)
Ancyrocephalus Creplin, 1839 (basis of record)
Ancyrocephalus cobitis Ergens, 1963 accepted as Haliotrema cobitis (Ergens, 1963) Merella, Dmitrieva, Piras, Huyse, Gerasev & Garippa, 2010 accepted as Xenoligophoroides cobitis (Ergens, 1963) Dmitrieva, Sanna, Piras, Garippa & Merella, 2018 (basis of record)
Ancyrocephalus paradoxus Creplin, 1839 (basis of record)
Ancyrocotyle Parona & Monticelli, 1903 (basis of record)
Ancyrocotyle vallei (Parona & Perugia, 1895) Parona & Monticelli, 1903 (basis of record)
Anoplodiscidae Tagliani, 1912 (basis of record)
Anoplodiscus Sonsino, 1890 (basis of record)
Anoplodiscus richiardii Sonsino, 1890 (basis of record)
Anthocotyle Van Beneden & Hesse, 1863 (basis of record)
Anthocotyle merluccii Van Beneden & Hesse, 1863 (basis of record)
Aspinatrium Yamaguti, 1963 (basis of record)
Aspinatrium euzeti Ktari, 1971 accepted as Pseudoaspinatrium euzeti (Ktari, 1971) Mamaev, 1986 accepted as Pauciconfibula euzeti (Ktari, 1971) Chisholm, Beverley-Burton & McAlpine, 1991 (basis of record)
Aspinatrium gallieni Euzet & Ktari, 1971 accepted as Pseudoaspinatrium gallieni (Euzet & Ktari, 1971) Mamaev, 1986 (basis of record)
Aspinatrium spari (Yamaguti, 1937) Yamaguti, 1963 (basis of record)
Aspinatrium trachini (Parona & Perugia, 1889) Yamaguti, 1963 accepted as Bradyhaptorus trachini (Parona & Perugia, 1890) Unnithan, 1971 accepted as Pauciconfibula trachini (Parona & Perugia, 1889) Dilllon & Hargis, 1965 (basis of record)
Atriaster Lebedev & Parukhin, 1969 (basis of record)
Atriaster heterodus Lebedev & Parukhin, 1969 (basis of record)
Atriaster maillardi Lopez-Roman & De Armas Hernandez, 1989 (basis of record)
Atrispinum Euzet & Maillard, 1974 (basis of record)
Atrispinum acarne Maillard & Noisy, 1979 (basis of record)
Atrispinum labracis (Van Beneden & Hesse, 1863) Winch, 1983 accepted as Serranicotyle labracis (Van Beneden & Hesse, 1863) Maillard, Euzet & Silan, 1988 (basis of record)
Atrispinum mormyri (Lorenz, 1878) Orecchia & Paggi, 1983 accepted as Pagellicotyle mormyri (Lorenz, 1878) Mamev, 1984 accepted as Bychowskicotyla mormyri (Lorenz, 1878) Unnithan, 1971 (basis of record)
Atrispinum salpae (Parona & Perugia, 1890) Maillard & Noisy, 1979 (basis of record)
Atrispinum sargi (Parona & Perugia, 1890) Euzet & Maillard, 1974 (basis of record)
Atrispinum seminalis (Euzet & Maillard, 1973) (basis of record)
Axine Abildgaard, 1794 (basis of record)
Axine belones Abildgaard, 1794 (basis of record)
Axinidae Monticelli, 1903 (basis of record)
Benedenia Diesing, 1858 (basis of record)
Benedenia innobilitata Burnheim, Gomes & Varela, 1973 (basis of record)
Benedenia leucanthemum Euzet & Maillard, 1967 accepted as Trimusculotrema leucanthemum (Euzet & Maillard, 1967) Whittington & Barton, 1990 (basis of record)
Benedenia micracantha Euzet & Maillard, 1967 accepted as Trimusculotrema micracantha (Euzet & Maillard, 1967) Whittington & Barton, 1990 (basis of record)
Benedenia monticellii (Parona & Perugia, 1895) Johnston, 1929 (basis of record)
Benedenia pompatica Burnheim, Gomes & Varela, 1973 (basis of record)
Benedenia sciaenae (Van Beneden, 1852) Odhner, 1905 (basis of record)
Bivagina Yamaguti, 1963 (basis of record)
Bivagina alcedinis (Parona & Perugia, 1889) Yamaguti, 1963 (basis of record)
Bothitrema Price, 1936 (basis of record)
Bothitrema bothi (MacCallum, 1913) Price, 1936 (basis of record)
Bothitrematidae Price, 1936 (basis of record)
Caballerocotyla Price, 1960 accepted as Capsala Bosc, 1811 (basis of record)
Caballerocotyla abidjani Bussieras & Baudin-Laurencin, 1970 accepted as Capsala biparasitica (Goto, 1894) Price, 1938 (basis of record)
Caballerocotyla pelamydis (Taschenberg, 1878) Price, 1960 accepted as Capsala pelamydis (Taschenberg, 1878) Johnston, 1929 (basis of record)
Caballerocotyla pseudomagronum Busserias, 1972 accepted as Capsala magronum (Ishii, 1936) Price, 1938 (basis of record)
Caballerocotyla verrucosa Busserias, 1972 accepted as Capsala paucispinosa (Mamaev, 1968) Chisholm & Whittington, 2007 (basis of record)
Cadenatia Euzet & Maillard, 1967 accepted as Neodermophthirius Price, 1963 (basis of record)
Cadenatia polytestis Euzet & Maillard, 1967 accepted as Neodermophthirius harkemai Price, 1963 (basis of record)
Calceostoma Van Beneden, 1858 (basis of record)
Calceostoma calceostoma (Wagener, 1857) (basis of record)
Calceostoma herculanea Euzet & Vala, 1976 (basis of record)
Calceostoma paronai Gupta & Sachdeva, 1992 (basis of record)
Calceostomatidae Parona & Perugia, 1890 (basis of record)
Calceostomella Palombi, 1943 (basis of record)
Calceostomella inermis (Parona & Perugia, 1889) Palombi, 1943 (basis of record)
Calicotyle Diesing, 1850 (basis of record)
Calicotyle affinis Scott, 1911 (basis of record)
Calicotyle kroyeri Diesing, 1850 (basis of record)
Calicotyle palombi Euzet & Williams, 1960 (basis of record)
Calicotyle stossichi Braun, 1899 (basis of record)
Calicotyle vicina Neifar, Euzet & Ben Hassine, 2001 (basis of record)
Capsala Bosc, 1811 (basis of record)
Capsala martinieri Bosc, 1811 (basis of record)
Capsala pelamydis (Taschenberg, 1878) Johnston, 1929 (basis of record)
Capsala thynni (Guiart, 1938) Sproston, 1946 (basis of record)
Capsalidae Baird, 1853 (basis of record)
Capsaloides Price, 1936 (basis of record)
Capsaloides perugiai (Setti, 1898) Price, 1938 (basis of record)
Cathariotrema Johnston & Tiegs, 1922 (basis of record)
Cemocotyle Sproston, 1946 (basis of record)
Cemocotyle trachuri Dillon & Hargis, 1965 (basis of record)
Cemocotylidae Price, 1962 accepted as Heteraxinidae Unnithan, 1957 (basis of record)
Chauhanea Ramalingam, 1953 (basis of record)
Chauhanea mediterranea Euzet & Trilles, 1960 accepted as Cotyloatlantica mediterranea (Euzet & Trilles, 1960) Bravo-Hollis, 1984 (basis of record)
Chimaericola Brinkmann, 1942 (basis of record)
Chimaericola leptogaster (Leuckart, 1830) Brinkmann, 1942 (basis of record)
Chimaericolidae Brinkmann, 1942 (basis of record)
Choricotyle Van Beneden & Hesse, 1863 (basis of record)
Choricotyle chrysophryi Van Beneden & Hesse, 1863 (basis of record)
Cleithrarticus Mizelle, 1963 (basis of record)
Cotyloatlantica Bravo-Hollis, 1984 (basis of record)
Cotyloatlantica mediterranea (Euzet & Trilles, 1960) Bravo-Hollis, 1984 (basis of record)

Black Sea for Polyclithrum ponticum Gerasev, Dmitrieva & Gaevskaya, 2002 
European waters (ERMS scope) for Acanthocotyle borealis Brinkmann, 1940 
European waters (ERMS scope) for Acanthocotyle elegans Monticelli, 1890 
European waters (ERMS scope) for Acanthocotyle lobianchi Monticelli, 1888 
European waters (ERMS scope) for Acanthocotyle monticellii Scott, 1902 
European waters (ERMS scope) for Acanthocotyle oligoterus Monticelli, 1899 
European waters (ERMS scope) for Allencotyla mcintoshi Price, 1962 
European waters (ERMS scope) for Allodiclidophora squillarum (Parona & Perugia, 1889) Yamaguti, 1963 
European waters (ERMS scope) for Amphibdella flavolineata MacCallum, 1916 
European waters (ERMS scope) for Amphibdella paronaperugiae Llewellyn, 1960 
European waters (ERMS scope) for Amphibdella torpedinis Chatin, 1874 
European waters (ERMS scope) for Amphibdelloides maccallumi (Johnston & Tiegs, 1922) Price, 1937 
European waters (ERMS scope) for Amphibdelloides vallei Llewellyn, 1960 
European waters (ERMS scope) for Ancyrocephalus cobitis Ergens, 1963 
European waters (ERMS scope) for Ancyrocephalus paradoxus Creplin, 1839 
European waters (ERMS scope) for Ancyrocotyle vallei (Parona & Perugia, 1895) Parona & Monticelli, 1903 
European waters (ERMS scope) for Anthocotyle merluccii Van Beneden & Hesse, 1863 
European waters (ERMS scope) for Aspinatrium euzeti Ktari, 1971 
European waters (ERMS scope) for Aspinatrium gallieni Euzet & Ktari, 1971 
European waters (ERMS scope) for Aspinatrium spari (Yamaguti, 1937) Yamaguti, 1963 
European waters (ERMS scope) for Aspinatrium trachini (Parona & Perugia, 1889) Yamaguti, 1963 
European waters (ERMS scope) for Atriaster heterodus Lebedev & Parukhin, 1969 
European waters (ERMS scope) for Atriaster maillardi Lopez-Roman & De Armas Hernandez, 1989 
European waters (ERMS scope) for Atrispinum acarne Maillard & Noisy, 1979 
European waters (ERMS scope) for Atrispinum labracis (Van Beneden & Hesse, 1863) Winch, 1983 
European waters (ERMS scope) for Atrispinum mormyri (Lorenz, 1878) Orecchia & Paggi, 1983 
European waters (ERMS scope) for Atrispinum salpae (Parona & Perugia, 1890) Maillard & Noisy, 1979 
European waters (ERMS scope) for Atrispinum sargi (Parona & Perugia, 1890) Euzet & Maillard, 1974 
European waters (ERMS scope) for Atrispinum seminalis (Euzet & Maillard, 1973) 
European waters (ERMS scope) for Axine belones Abildgaard, 1794 
European waters (ERMS scope) for Benedenia innobilitata Burnheim, Gomes & Varela, 1973 
European waters (ERMS scope) for Benedenia leucanthemum Euzet & Maillard, 1967 
European waters (ERMS scope) for Benedenia micracantha Euzet & Maillard, 1967 
European waters (ERMS scope) for Benedenia monticellii (Parona & Perugia, 1895) Johnston, 1929 
European waters (ERMS scope) for Benedenia pompatica Burnheim, Gomes & Varela, 1973 
European waters (ERMS scope) for Benedenia sciaenae (Van Beneden, 1852) Odhner, 1905 
European waters (ERMS scope) for Bivagina alcedinis (Parona & Perugia, 1889) Yamaguti, 1963 
European waters (ERMS scope) for Bothitrema bothi (MacCallum, 1913) Price, 1936 
European waters (ERMS scope) for Caballerocotyla abidjani Bussieras & Baudin-Laurencin, 1970 
European waters (ERMS scope) for Caballerocotyla pelamydis (Taschenberg, 1878) Price, 1960 
European waters (ERMS scope) for Caballerocotyla pseudomagronum Busserias, 1972 
European waters (ERMS scope) for Caballerocotyla verrucosa Busserias, 1972 
European waters (ERMS scope) for Cadenatia polytestis Euzet & Maillard, 1967 
European waters (ERMS scope) for Calceostoma calceostoma (Wagener, 1857) 
European waters (ERMS scope) for Calceostoma herculanea Euzet & Vala, 1976 
European waters (ERMS scope) for Calceostoma paronai Gupta & Sachdeva, 1992 
European waters (ERMS scope) for Calceostomella inermis (Parona & Perugia, 1889) Palombi, 1943 
European waters (ERMS scope) for Calicotyle affinis Scott, 1911 
European waters (ERMS scope) for Calicotyle kroyeri Diesing, 1850 
European waters (ERMS scope) for Calicotyle palombi Euzet & Williams, 1960 
European waters (ERMS scope) for Calicotyle stossichi Braun, 1899 
European waters (ERMS scope) for Calicotyle vicina Neifar, Euzet & Ben Hassine, 2001 
European waters (ERMS scope) for Capsala martinieri Bosc, 1811 
European waters (ERMS scope) for Capsala pelamydis (Taschenberg, 1878) Johnston, 1929 
European waters (ERMS scope) for Capsala thynni (Guiart, 1938) Sproston, 1946 
European waters (ERMS scope) for Capsaloides perugiai (Setti, 1898) Price, 1938 
European waters (ERMS scope) for Cathariotrema Johnston & Tiegs, 1922 
European waters (ERMS scope) for Cemocotyle trachuri Dillon & Hargis, 1965 
European waters (ERMS scope) for Chauhanea mediterranea Euzet & Trilles, 1960 
European waters (ERMS scope) for Chimaericola leptogaster (Leuckart, 1830) Brinkmann, 1942 
European waters (ERMS scope) for Choricotyle chrysophryi Van Beneden & Hesse, 1863 
European waters (ERMS scope) for Cleithrarticus Mizelle, 1963 
European waters (ERMS scope) for Cotyloatlantica mediterranea (Euzet & Trilles, 1960) Bravo-Hollis, 1984 
European waters (ERMS scope) for Cyclocotyla charcoti (Dollfus, 1922) Price, 1943 
European waters (ERMS scope) for Cycloplectanum beverleyburtonae Oliver, 1984 
European waters (ERMS scope) for Cycloplectanum echinophallus (Euzet & Oliver, 1965) Oliver, 1968 
European waters (ERMS scope) for Cycloplectanum riouxi Oliver, 1986 
European waters (ERMS scope) for Dactylogyrus auriculatus (von Nordmann, 1832) Diesing, 1850 
European waters (ERMS scope) for Dactylogyrus crucifer Wagener, 1857 
European waters (ERMS scope) for Dactylogyrus fallax Wagener, 1857 
European waters (ERMS scope) for Dactylogyrus micracanthus Nybelin, 1937 
European waters (ERMS scope) for Dactylogyrus similis Wagener, 1909 
European waters (ERMS scope) for Dactylogyrus sphyrna Linstow, 1878 
European waters (ERMS scope) for Dactylogyrus wunderi Bychowsky, 1931 
European waters (ERMS scope) for Dasybatotrema dasyatis (MacCallum, 1916) Price, 1938 
European waters (ERMS scope) for Dendromonocotyle octodiscus Hargis, 1955 
European waters (ERMS scope) for Dendromonocotyle taeniurae Euzet & Maillard, 1967 
European waters (ERMS scope) for Dermophthirius carcharhini MacCallum, 1926 
European waters (ERMS scope) for Diclidophora bellones (Otto, 1823) 
European waters (ERMS scope) for Diclidophora denticulata (Olsson, 1876) Price, 1943 
European waters (ERMS scope) for Diclidophora esmarkii (Scott, 1901) Sproston, 1946 
European waters (ERMS scope) for Diclidophora luscae (Van Beneden & Hesse, 1863) Price, 1943 
European waters (ERMS scope) for Diclidophora macruri (Brinkmann, 1942) Sproston, 1946 
European waters (ERMS scope) for Diclidophora merlangi (Kuhn, 1829) Krøyer, 1838 
European waters (ERMS scope) for Diclidophora minor (Olsson, 1876) Sproston, 1946 
European waters (ERMS scope) for Diclidophora minuti Tirard, Berrebi, Raibaut & Frenaud, 1992 
European waters (ERMS scope) for Diclidophora pagelli Gallien, 1937 
European waters (ERMS scope) for Diclidophora palmata (Leuckart, 1830) Diesing, 1850 
European waters (ERMS scope) for Diclidophora phycidis (Parona & Perugia, 1889) Sproston, 1946 
European waters (ERMS scope) for Diclidophora pollachii (Van Beneden & Hesse, 1863) Price, 1943 
European waters (ERMS scope) for Diclidophoropsis taschenbergii (Parona & Perugia, 1899) Palombi, 1943 
European waters (ERMS scope) for Diclidophoropsis tissieri Gallien, 1937 
European waters (ERMS scope) for Diclybothrium armatum Leuckart, 1835 
European waters (ERMS scope) for Dicrumenia bychowskyi Mamaev, 1969 
European waters (ERMS scope) for Dictyocotyle coeliaca Nybelin, 1941 
European waters (ERMS scope) for Dionchus agassizi Goto, 1899 
European waters (ERMS scope) for Dionchus remorae (MacCallum, 1916) Price, 1938 
European waters (ERMS scope) for Diplectanotrema Johnston & Tiegs, 1922 
European waters (ERMS scope) for Diplectanum [sensu lato] bilobatum Hargis, 1955 
European waters (ERMS scope) for Diplectanum [sensu lato] elongatum Obiekezie, 1988 

 Identification

 for Allopseudaxine Yamaguti, 1943

Allopseudaxine sp. [details]

 Identification

 for Cathariotrema Johnston & Tiegs, 1922

Cathariotrema sp. [details]

 Identification

 for Cleithrarticus Mizelle, 1963

Cleithrarticus sp. [details]

 Identification

 for Diplectanotrema Johnston & Tiegs, 1922

Diplectanotrema sp. [details]