Aclis unica (Montagu, 1803) accepted as Graphis albida (Kanmacher, 1798) (basis of record)
Cerithiopsis obesula Bucquoy, Dautzenberg & Dollfus, 1883 (basis of record)
Columbellopsis minor (Scacchi, 1836) accepted as Mitrella minor (Scacchi, 1836) (basis of record)
Cylichnina subcylindrica (T. Brown, 1827) accepted as Retusa umbilicata (Montagu, 1803) (basis of record)
Dizoniopsis pulchella (Jeffreys, 1858) accepted as Cerithiopsis jeffreysi R. B. Watson, 1885 (basis of record)
Evalea diaphana (Jeffreys, 1848) accepted as Ondina diaphana (Jeffreys, 1848) (basis of record)
Evalea divisa (J. Adams, 1797) accepted as Ondina divisa (J. Adams, 1797) (basis of record)
Evalea obliqua (Alder, 1844) accepted as Ondina obliqua (Alder, 1844) (basis of record)
Evalea warreni (W. Thompson, 1845) accepted as Ondina warreni (W. Thompson, 1845) (basis of record)
Galeodina carinata (da Costa, 1778) accepted as Alvania carinata (da Costa, 1778) (basis of record)
Hinia incrassata (Strøm, 1768) accepted as Nassarius incrassatus (Strøm, 1768) accepted as Tritia incrassata (Strøm, 1768) (basis of record)
Hinia pygmaea (Lamarck, 1822) accepted as Nassarius pygmaeus (Lamarck, 1822) accepted as Tritia pygmaea (Lamarck, 1822) accepted as Tritia varicosa (W. Turton, 1825) (basis of record)
Hinia reticulata (Linnaeus, 1758) accepted as Nassarius reticulatus (Linnaeus, 1758) accepted as Tritia reticulata (Linnaeus, 1758) (basis of record)
Lunatia pulchella (Risso, 1826) accepted as Euspira nitida (Donovan, 1803) (basis of record)
Mamilloretusa mammillata (Philippi, 1836) accepted as Retusa mammillata (R. A. Philippi, 1836) (basis of record)
Mangiliella multilineolata (Deshayes, 1835) accepted as Mangelia multilineolata (Deshayes, 1835) (basis of record)
Onoba vigoensis Rolán, 1983 accepted as Manzonia vigoensis (Rolán, 1983) (original description)
Phasianema clathratum (R. A. Philippi, 1844) accepted as Clathrella clathrata (R. A. Philippi, 1844) accepted as Carinorbis clathrata (R. A. Philippi, 1844) (basis of record)
Setia semistriata (Montagu, 1808) accepted as Crisilla semistriata (Montagu, 1808) (basis of record)
Taramellia zetlandica (Montagu, 1816) accepted as Alvania zetlandica (Montagu, 1816) (basis of record)
Trivia hispania C. N. Cate, 1979 accepted as Trivia arctica (Pulteney, 1799) (source of synonymy)

Galicia Bank for Propilidium crossei Dautzenberg & H. Fischer, 1896 
Spain - Demarcación Marina Noratlántica for Crepidula fornicata (Linnaeus, 1758)  (origin: alien)
Spain - Demarcación Marina Noratlántica for Epitonium pulchellum (Bivona e Barnardi, 1832)