Aetea azorensis Calvet, 1903 accepted as Aetea sica (Couch, 1844) (basis of record)
Assiminea eliae Paladilhe, 1875 (basis of record)
Bowerbankia pusilla Jullien, 1903 accepted as Amathia pusilla (Jullien, 1903) (basis of record)
Dakaria chevreuxi Jullien & Calvet, 1903 (basis of record)
Lissodendoryx isodictyalis (Carter, 1882) represented as Lissodendoryx (Lissodendoryx) isodictyalis (Carter, 1882) (additional source)
Membranipora cervicornis Busk, 1854 accepted as Chaperiopsis cervicornis (Busk, 1854) (basis of record)
Molgula complanata azorensis Monniot C., 1971 accepted as Molgula azorensis Monniot C., 1971 (basis of record)
Schizoporella costazii (Audouin, 1826) accepted as Celleporina costazii (Audouin, 1826) (basis of record)
Symphodus caeruleus (Azevedo, 1999) (basis of record)

Azores Exclusive Economic Zone for Abludomelita gladiosa (Spence Bate & Westwood, 1862) 
Azores Exclusive Economic Zone for Abludomelita obtusata (Montagu, 1813) 
Azores Exclusive Economic Zone for Abudefduf luridus (Cuvier, 1830) 
Azores Exclusive Economic Zone for Acanthocardia aculeata (Linnaeus, 1758)  (inaccurate)
Azores Exclusive Economic Zone for Acanthochaenus luetkenii Gill, 1884 
Azores Exclusive Economic Zone for Acanthocybium solandri (Cuvier, 1832) 
Azores Exclusive Economic Zone for Acantholabrus palloni (Risso, 1810) 
Azores Exclusive Economic Zone for Acanthonus armatus Günther, 1878 
Azores Exclusive Economic Zone for Acanthonyx lunulatus (Risso, 1816) 
Azores Exclusive Economic Zone for Acanthostracion notacanthus (Bleeker, 1863) 
Azores Exclusive Economic Zone for Achaeus cranchii Leach, 1817 
Azores Exclusive Economic Zone for Achaeus gracilis (O.G. Costa, 1839) 
Azores Exclusive Economic Zone for Achelia anomala Arnaud, 1974 
Azores Exclusive Economic Zone for Achelia echinata Hodge, 1864 
Azores Exclusive Economic Zone for Acrochaete viridis (Reinke) R.Nielsen, 1979 
Azores Exclusive Economic Zone for Acrochaetium microscopicum (Nägeli ex Kützing) Nägeli, 1858 
Azores Exclusive Economic Zone for Acrosorium ciliolatum (Harvey) Kylin, 1924 
Azores Exclusive Economic Zone for Acrosymphyton purpuriferum (J.Agardh) G.Sjöstedt, 1926 
Azores Exclusive Economic Zone for Actinia equina (Linnaeus, 1758) 
Azores Exclusive Economic Zone for Actinia sali Monteiro, Sole-Cava & Thorpe, 1997 
Azores Exclusive Economic Zone for Actinia schmidti Monteiro, Sole-Cava & Thorpe, 1997 
Azores Exclusive Economic Zone for Aegapheles deshaysiana (H. Milne Edwards, 1840) 
Azores Exclusive Economic Zone for Aetea anguina (Linnaeus, 1758) 
Azores Exclusive Economic Zone for Aetea azorensis Calvet, 1903 
Azores Exclusive Economic Zone for Agardhinula browneae (J.Agardh) De Toni, 1897 
Azores Exclusive Economic Zone for Agauopsis brevipalpus (Trouessart, 1889) 
Azores Exclusive Economic Zone for Aglaophenia octodonta (Heller, 1868) 
Azores Exclusive Economic Zone for Aglaothamnion feldmanniae Halos, 1965 
Azores Exclusive Economic Zone for Aglaothamnion gallicum (Nägeli) Halos ex Ardré, 1970 
Azores Exclusive Economic Zone for Aglaothamnion hookeri (Dillwyn) Maggs & Hommersand, 1993 
Azores Exclusive Economic Zone for Aglaothamnion roseum (Roth) Maggs & L'Hardy-Halos, 1993 
Azores Exclusive Economic Zone for Aglaothamnion tenuissimum (Bonnemaison) Feldmann-Mazoyer, 1941 
Azores Exclusive Economic Zone for Aglaura hemistoma Péron & Lesueur, 1810 
Azores Exclusive Economic Zone for Ahliesaurus berryi Bertelsen, Krefft & Marshall, 1976 
Azores Exclusive Economic Zone for Ahnfeltiopsis devoniensis (Greville) P.C.Silva & DeCew, 1992 
Azores Exclusive Economic Zone for Aiptasia mutabilis (Gravenhorst, 1831) 
Azores Exclusive Economic Zone for Albunea carabus (Linnaeus, 1758) 
Azores Exclusive Economic Zone for Alcyonium glomeratum (Hassall, 1843) 
Azores Exclusive Economic Zone for Aldrovandia affinis (Günther, 1877) 
Azores Exclusive Economic Zone for Aldrovandia phalacra (Vaillant, 1888) 
Azores Exclusive Economic Zone for Alepisaurus brevirostris Gibbs, 1960 
Azores Exclusive Economic Zone for Alepisaurus ferox Lowe, 1833 
Azores Exclusive Economic Zone for Alepocephalus bairdii Goode & Bean, 1879 
Azores Exclusive Economic Zone for Alepocephalus productus Gill, 1883 
Azores Exclusive Economic Zone for Alepocephalus rostratus Risso, 1820 
Azores Exclusive Economic Zone for Alicia mirabilis Johnson, 1861 
Azores Exclusive Economic Zone for Alloeocarpa loculosa Monniot C., 1974 
Azores Exclusive Economic Zone for Alopias superciliosus Lowe, 1841 
Azores Exclusive Economic Zone for Alopias vulpinus (Bonnaterre, 1788) 
Azores Exclusive Economic Zone for Alpheus bouvieri A. Milne-Edwards, 1878 
Azores Exclusive Economic Zone for Alpheus dentipes Guérin, 1832 
Azores Exclusive Economic Zone for Alpheus macrocheles (Hailstone, 1835) 
Azores Exclusive Economic Zone for Aluterus monoceros (Linnaeus, 1758) 
Azores Exclusive Economic Zone for Aluterus scriptus (Osbeck, 1765) 
Azores Exclusive Economic Zone for Amathia lendigera (Linnaeus, 1758) 
Azores Exclusive Economic Zone for Ammothella longipes (Hodge, 1864) 
Azores Exclusive Economic Zone for Ampelisca aequicornis Bruzelius, 1859 
Azores Exclusive Economic Zone for Ampelisca rubella A. Costa, 1864 
Azores Exclusive Economic Zone for Amphiglena mediterranea (Leydig, 1851) 
Azores Exclusive Economic Zone for Amphilochus manudens Spence Bate & Westwood, 1862 
Azores Exclusive Economic Zone for Amphilochus neapolitanus Della Valle, 1893 
Azores Exclusive Economic Zone for Amphiroa beauvoisii J.V.Lamouroux, 1816 
Azores Exclusive Economic Zone for Amphiroa cryptarthrodia Zanardini, 1843 
Azores Exclusive Economic Zone for Amphiroa rigida J.V.Lamouroux, 1816 
Azores Exclusive Economic Zone for Amphitoe ramondi Audouin, 1826 
Azores Exclusive Economic Zone for Amphiura chiajei Forbes, 1843 
Azores Exclusive Economic Zone for Ampithoe fastidiosa Mateus & Mateus, 1991 
Azores Exclusive Economic Zone for Ampithoe ferox (Chevreux, 1902) 
Azores Exclusive Economic Zone for Ampithoe gammaroides Spence Bate, 1857 sensu G.O. Sars, 1894 
Azores Exclusive Economic Zone for Ampithoe pomboi (Mateus & Alfonso, 1974) 
Azores Exclusive Economic Zone for Ampithoe rubricata (Montagu, 1808) 
Azores Exclusive Economic Zone for Anadyomene stellata (Wulfen) C.Agardh, 1823 
Azores Exclusive Economic Zone for Anapagurus chiroacanthus (Liljeborg, 1856) 
Azores Exclusive Economic Zone for Anapagurus laevis (Bell, 1845) 
Azores Exclusive Economic Zone for Anapagurus longispina A. Milne-Edwards & Bouvier, 1900 
Azores Exclusive Economic Zone for Anapagurus pusillus Henderson, 1888 
Azores Exclusive Economic Zone for Anarchias euryurus (Lea, 1913) 
Azores Exclusive Economic Zone for Anchialina agilis (G.O. Sars, 1877) 
Azores Exclusive Economic Zone for Anemonia melanaster (Verrill, 1901) 
Azores Exclusive Economic Zone for Anemonia sargassensis Hargitt, 1908 
Azores Exclusive Economic Zone for Anguilla anguilla (Linnaeus, 1758) 
Azores Exclusive Economic Zone for Anoplodactylus amora Bamber & Costa, 2009 
Azores Exclusive Economic Zone for Anoplodactylus angulatus (Dohrn, 1881) 
Azores Exclusive Economic Zone for Anoplodactylus maritimus Hedgpeth, 1948 
Azores Exclusive Economic Zone for Anoplodactylus petiolatus (Krøyer, 1844) 
Azores Exclusive Economic Zone for Anoplodactylus pygmaeus (Hoek, 1881) 
Azores Exclusive Economic Zone for Anoplodactylus virescens (Hodge, 1864) 
Azores Exclusive Economic Zone for Anoplogaster cornuta (Valenciennes, 1833) 
Azores Exclusive Economic Zone for Anotopterus pharao Zugmayer, 1911 
Azores Exclusive Economic Zone for Anotrichium barbatum (C.Agardh) Nägeli, 1862 
Azores Exclusive Economic Zone for Anotrichium furcellatum (J.Agardh) Baldock, 1976 
Azores Exclusive Economic Zone for Anotrichium tenue (C.Agardh) Nägeli, 1862 
Azores Exclusive Economic Zone for Antedon bifida (Pennant, 1777) 
Azores Exclusive Economic Zone for Antennarius nummifer (Cuvier, 1817) 
Azores Exclusive Economic Zone for Antennarius radiosus Garman, 1896 
Azores Exclusive Economic Zone for Antennella secundaria (Gmelin, 1791) 
Azores Exclusive Economic Zone for Anthias anthias (Linnaeus, 1758) 
Azores Exclusive Economic Zone for Anthopleura ballii (Cocks, 1851) 
Azores Exclusive Economic Zone for Anthothoe affinis (Johnson, 1861) 
Azores Exclusive Economic Zone for Anthura gracilis (Montagu, 1808)