• Aberrapex arrhynchum (Brooks, Mayes & Thorson, 1981) Jensen, 2001
• Aberrapex catarinensis Quadros, 2024
• Aberrapex ludmilae Menoret, Mutti & Ivanov, 2017
• Aberrapex manjajiae Jensen, 2006
• Aberrapex panamensis Quadros, 2024
• Aberrapex sanmartini Menoret, Mutti & Ivanov, 2017
• Aberrapex senticosus Jensen, 2001
• Aberrapex vitalemuttiorum Menoret, Mutti & Ivanov, 2017
• Aberrapex weipaensis Koch, Jensen & Caira, 2012
• Abortipedia indica Unnithan, 1962
• Abortipedia pacifica (Meserve, 1938) Unnithan, 1962 accepted as Neomicrocotyle pacifica (Meserve, 1938) Yamaguti, 1968
• Abothrium acipenserinum Cholodkowsky, 1918 accepted as Eubothrium acipenserinum (Cholodkovsky, 1918) Dogiel & Bychowsky, 1939
• Abothrium crassum (Bloch, 1779) Lühe, 1899 accepted as Eubothrium crassum (Bloch, 1779) Nybelin, 1922
• Abothrium gadi Van Beneden, 1870
• Abothrium hermaphroductus Harding, 1937 accepted as Eubothrium crassum (Bloch, 1779) Nybelin, 1922
• Abothrium infundibuliformis (Rudolphi, 1810) Braun, 1900 accepted as Eubothrium salvelini (Schrank, 1790) Nybelin, 1922
• Abothrium longissimum Cholodkovsky, 1918 accepted as Eubothrium crassum (Bloch, 1779) Nybelin, 1922
• Abothrium morrhuae Cholodkovsky, 1918 accepted as Abothrium gadi Van Beneden, 1870
• Abothrium rugosum (Batsch, 1789) Loennberg, 1889 accepted as Eubothrium rugosum (Batsch, 1786) Nybelin, 1922
• Abothros carcharias Welch, 1876 accepted as Tentacularia coryphaenae Bosc, 1802
• Absonifibula bychowskyi Lawler & Overstreet, 1976
• Absonifibula estuarina Santos & Timi, 2009
• Abuladzugnia gutterae (Ortlepp, 1963) Spasskii, 1973
• Abyssopedunculus brevis (Andres & Overstreet, 2013) Martin, Huston, Cutmore & Cribb, 2019
• Abyssotrema pritchardae Campbell, 1975 accepted as Steringophorus pritchardae (Campbell, 1975) Bray & Gibson, 1980
• Acaenodera nautili Bray & Justine, 2011
• Acaenodera placophora Manter & Pritchard, 1960
• Acaenodera spinosior Etchegoin, Lanfranchi, Cremonte & Timi, 2006
• Acanthatrium (Mesothatrium) japonicum (Yamaguti, 1939) Skarbilovich, 1948 accepted as Acanthatrium japonicum (Yamaguti, 1939) Skarbilovich, 1948
• Acanthatrium (Paracanthatrium) aegyptiacus Saoud & Ramadan, 1980 accepted as Acanthatrium aegyptiacus Saoud & Ramadan, 1980
• Acanthatrium aegyptiacus Saoud & Ramadan, 1980
• Acanthatrium alicatai Macy, 1940
• Acanthatrium amphidymum Cheng, 1957
• Acanthatrium anaplocami Etges, 1960
• Acanthatrium assiuti El-Naffar, Omran & Mandour, 1978
• Acanthatrium atriopapillatum Capron, Deblock & Brygoo, 1961
• Acanthatrium beuschleini Cheng, 1959
• Acanthatrium bisutum Groschaft & Tenora, 1971
• Acanthatrium cahirinus Saoud & Ramadan, 1980
• Acanthatrium celebesi Khotenovsky, 1974
• Acanthatrium chinensis Sun, 1988
• Acanthatrium chosenicum (Ogata, 1941) Sogandares-Bernal, 1956
• Acanthatrium copaccinii Khotenovsky, 1974
• Acanthatrium eptesici Alicata, 1932
• Acanthatrium eurytremum (Ogata, 1942) Dubois, 1961
• Acanthatrium fugleri Marshall & Miller, 1979
• Acanthatrium hitaensis Koga, 1953
• Acanthatrium houini Richard, 1966
• Acanthatrium japonicum (Yamaguti, 1939) Skarbilovich, 1948
• Acanthatrium jonesi Sogandares-Bernal, 1956
• Acanthatrium lageniforme Ogata, 1945
• Acanthatrium lunatum Williams, 1960
• Acanthatrium macyi Sogandares-Bernal, 1956
• Acanthatrium microcanthum Macy, 1940
• Acanthatrium molossidis Martin, 1934
• Acanthatrium mukooyamai Kifune & Sawada, 1989
• Acanthatrium nycteridis Faust, 1919
• Acanthatrium nycteridis plicati Bhalerao, 1926
• Acanthatrium oligacanthum Cheng, 1957
• Acanthatrium oregonense Macy, 1939
• Acanthatrium ovatum Yamaguti, 1939
• Acanthatrium papilligerum Kifune & Sawada, 1989
• Acanthatrium pipistrelli Macy, 1940
• Acanthatrium rotundum Asada & Watanabe in Watanabe, 1959
• Acanthatrium sogandaresi Coil & Kuntz, 1958
• Acanthatrium sphaerula (Looss, 1896) Travassos, 1921
• Acanthatrium sungi Matskasi, 1973
• Acanthatrium taiwanense Fischthal & Kuntz, 1975
• Acanthatrium taiwanense Kifune & Sawada, 1984
• Acanthatrium tatrense Zdzitowiecki, 1967
• Acanthatrium umbraculatum Christian, 1972
• Acanthobothrium adlardi Campbell & Beveridge, 2002
• Acanthobothrium aetiobatidis (Shipley, 1900) Southwell, 1925
• Acanthobothrium aetiobatis (Shipley, 1900) accepted as Acanthobothrium aetiobatidis (Shipley, 1900) Southwell, 1925
• Acanthobothrium amazonense Mayes, Brooks & Thorson, 1978
• Acanthobothrium amazonensis Mayes, Brooks & Thorson, 1978 accepted as Acanthobothrium amazonense Mayes, Brooks & Thorson, 1978
• Acanthobothrium americanum Campbell, 1969
• Acanthobothrium angelae Campbell & Beveridge, 2002
• Acanthobothrium annapinkiense Carvajal & Goldstein, 1971
• Acanthobothrium annapinkiensis Carvajal & Goldstein, 1971 accepted as Acanthobothrium annapinkiense Carvajal & Goldstein, 1971
• Acanthobothrium arlenae Campbell & Beveridge, 2002
• Acanthobothrium asnihae Fyler & Caira, 2006
• Acanthobothrium asrinae Maleki, Malek & Palm, 2015
• Acanthobothrium atahualpai Marques, Brooks & Barringa, 1978
• Acanthobothrium aurangabadensis (Deshmukh & Shinde, 1975)
• Acanthobothrium australe Robinson, 1965
• Acanthobothrium australis Robinson, 1965 accepted as Acanthobothrium australe Robinson, 1965
• Acanthobothrium bajaense Appy & Dailey, 1973
• Acanthobothrium bajaensis Appy & Dailey, 1973 accepted as Acanthobothrium bajaense Appy & Dailey, 1973
• Acanthobothrium bartonae Campbell & Beveridge, 2002
• Acanthobothrium barusi Pramanik & Manna, 2010
• Acanthobothrium batailloni Euzet, 1955
• Acanthobothrium benedenii Lönnberg, 1889
• Acanthobothrium bengalense Baer & Euzet, 1962
• Acanthobothrium beveridgei Polyakova, 2009
• Acanthobothrium bifurcatum (Leuckart, 1819)
• Acanthobothrium blairi Campbell & Beveridge, 2002
• Acanthobothrium bobconniorum Fyler & Caira, 2010
• Acanthobothrium brachyacanthum Riser, 1955
• Acanthobothrium brayi Campbell & Beveridge, 2002