Alvania cancellina Locard, 1891 accepted as Alvania cancellata (da Costa, 1778) (original description)
Amycla inflata Locard, 1891 accepted as Nassarius corniculum (Olivi, 1792) accepted as Tritia corniculum (Olivi, 1792) (original description)
Anomia boletiformis Locard, 1891 accepted as Anomia ephippium Linnaeus, 1758 (original description)
Aporrhais pelecanipes Locard, 1891 accepted as Aporrhais pespelecani (Linnaeus, 1758) (original description)
Bela turriculata Locard, 1891 accepted as Propebela turricula (Montagu, 1803) (original description)
Bittium latreillei [sic] accepted as Bittium latreillii (Payraudeau, 1826) (basis of record)
Cardita formosula Locard, 1891 accepted as Cardita calyculata (Linnaeus, 1758) (original description)
Cardium bullatum Locard, 1891 accepted as Acanthocardia echinata (Linnaeus, 1758) (original description)
Cassis calamistrata Locard, 1891 accepted as Semicassis undulata (Gmelin, 1791) (original description)
Cerithiopsis scalaris Locard, 1891 (original description)
Cingula elegans Locard, 1891 accepted as Peringiella elegans (Locard, 1891) (original description)
Cingula obesa Locard, 1891 accepted as Crisilla semistriata (Montagu, 1808) (original description)
Circe striata Locard, 1891 accepted as Gouldia minima (Montagu, 1803) (original description)
Circe undulata Locard, 1891 accepted as Gouldia minima (Montagu, 1803) (original description)
Clathurella bourguignati Locard, 1891 accepted as Raphitoma bourguignati (Locard, 1891) (original description)
Clathurella decorata Locard, 1891 accepted as Raphitoma densa (Monterosato, 1884) (original description)
Clathurella mirabilis Locard, 1891 accepted as Leufroyia leufroyi (Michaud, 1828) (original description)
Clathurella septentrionalis Locard, 1891 accepted as Raphitoma echinata (Brocchi, 1814) † (original description)
Cylichna candidula Locard, 1891 accepted as Retusa candidula (Locard, 1891) (original description)
Cytherea gracilenta Locard, 1891 accepted as Pitar rudis (Poli, 1795) (original description)
Cytherea rugata Locard, 1891 accepted as Pitar rudis (Poli, 1795) (original description)
Dosinia complanata Locard, 1891 accepted as Dosinia exoleta (Linnaeus, 1758) (original description)
Emarginula tenera Locard, 1891 (original description)
Eulima anteflexa Locard, 1891 accepted as Vitreolina antiflexa (Monterosato, 1884) (original description)
Eulima comatulicola (Graff, 1875) accepted as Crinophtheiros comatulicola (Graff, 1875) (basis of record)
Eulima compactilis Locard, 1891 accepted as Melanella compactilis (Locard, 1891) (original description)
Eulimella compactilis Locard, 1891 accepted as Melanella compactilis (Locard, 1891) (original description)
Fusus rissoianus Locard, 1891 accepted as Aptyxis syracusana (Linnaeus, 1758) (original description)
Helcion gracile Locard, 1891 accepted as Ansates pellucida (Linnaeus, 1758) accepted as Patella pellucida Linnaeus, 1758 (original description)
Littorina insularum Locard, 1891 accepted as Melarhaphe neritoides (Linnaeus, 1758) (original description)
Lucina elata Locard, 1891 accepted as Loripes orbiculatus Poli, 1795 (original description)
Mactra gracilis Locard, 1891 accepted as Spisula elliptica (T. Brown, 1827) (original description)
Mangilia patula Locard, 1891 accepted as Mangelia costata (Pennant, 1777) (original description)
Mesodesma elongata Locard, 1891 accepted as Donacilla cornea (Poli, 1791) (original description)
Mitra bourguignati Locard, 1891 accepted as Vexillum ebenus (Lamarck, 1811) accepted as Pusia ebenus (Lamarck, 1811) (original description)
Mitra plicatuliformis Locard, 1891 accepted as Vexillum ebenus (Lamarck, 1811) accepted as Pusia ebenus (Lamarck, 1811) (original description)
Mitra subpyramidella Locard, 1891 accepted as Vexillum ebenus (Lamarck, 1811) accepted as Pusia ebenus (Lamarck, 1811) (original description)
Mitrolumna oliviformis Locard, 1891 accepted as Mitromorpha olivoidea (Cantraine, 1835) (original description)
Murex scalariformis Locard, 1891 accepted as Dermomurex scalaroides (Blainville, 1829) (original description)
Nassa limata (Chemnitz, 1795) accepted as Nassarius lima (Dillwyn, 1817) accepted as Tritia lima (Dillwyn, 1817) (basis of record)
Ondina crystallina Locard, 1891 (original description)
Ovula obsoleta Locard, 1891 accepted as Simnia spelta (Linnaeus, 1758) (original description)
Patella hypsilotera Locard, 1891 accepted as Patella vulgata Linnaeus, 1758 (original description)
Patella mabillei Locard, 1891 accepted as Patella depressa Pennant, 1777 (original description)
Patella scutellina Locard, 1891 accepted as Patella caerulea Linnaeus, 1758 (original description)
Pholas duboisi Locard, 1891 accepted as Barnea parva (Pennant, 1777) (original description)
Pinna pectinata Linnaeus, 1767 sensu Pennant, 1812 accepted as Atrina fragilis (Pennant, 1777) (basis of record)
Pollia scabra Locard, 1891 accepted as Aplus scaber (Locard, 1891) accepted as Aplus coccineus (Monterosato, 1884) (original description)
Ptychostomon marioni Locard, 1891 accepted as Ondina warreni (W. Thompson, 1845) (original description)
Purpura lapillina Locard, 1886 accepted as Nucella lapillus (Linnaeus, 1758) (additional source)
Raphitoma affine Locard, 1891 accepted as Bela nebula (Montagu, 1803) (original description)
Raphitoma decussatum Locard, 1891 accepted as Bela decussata (Locard, 1891) (original description)
Raphitoma oceanicum Locard, 1891 accepted as Bela oceanica (Locard, 1891) (original description)
Raphitoma ornata Locard, 1891 accepted as Bela ornata (Locard, 1891) accepted as Smithiella costulata (Risso, 1826) (original description)
Raphitoma reconditum Locard, 1891 accepted as Bela nuperrima (Tiberi, 1855) accepted as Vexiguraleus hispidulus (Bellardi, 1847) (original description)
Raphitoma strictum Locard, 1891 accepted as Mangelia smithii (Forbes, 1840) accepted as Mangelia costulata Risso, 1826 accepted as Smithiella costulata (Risso, 1826) (original description)
Raphitoma zonatum Locard, 1891 accepted as Bela zonata (Locard, 1891) (original description)
Scalaria jousseaumei Locard, 1891 accepted as Epitonium clathrus (Linnaeus, 1758) (original description)
Scalaria turtonae Locard, 1891 accepted as Epitonium turtonis (W. Turton, 1819) (original description)
Sphaeronassa irregularis Locard, 1891 accepted as Tritia gibbosula (Linnaeus, 1758) (original description)
Trophonopsis curta Locard, 1891 accepted as Trophonopsis muricata (Montagu, 1803) (original description)
Trophonopsis truncata (Strøm, 1768) accepted as Boreotrophon truncatus (Strøm, 1768) (basis of record)
Venus nuculata Locard, 1891 accepted as Chamelea gallina (Linnaeus, 1758) (original description)