Amycla luteostoma Coen, 1933 accepted as Nassarius corniculum (Olivi, 1792) accepted as Tritia corniculum (Olivi, 1792) (original description)
Aporrhais pespelecani var. aculeus Coen, 1933 accepted as Aporrhais pespelecani (Linnaeus, 1758) (original description)
Aptyxis syracusanus var. abbreviata Coen, 1933 accepted as Fusinus syracusanus (Linnaeus, 1758) accepted as Aptyxis syracusana (Linnaeus, 1758) (original description)
Calliostoma bullatum Coen, 1933 accepted as Calliostoma conulum [sic] accepted as Calliostoma conulus (Linnaeus, 1758) (original description)
Calliostoma maurae Coen, 1933 accepted as Calliostoma virescens Coen, 1933 accepted as Calliostoma laugieri (Payraudeau, 1826) (original description)
Calliostoma tornatum Coen, 1933 accepted as Calliostoma virescens Coen, 1933 accepted as Calliostoma laugieri (Payraudeau, 1826) (original description)
Calliostoma virescens Coen, 1933 accepted as Calliostoma laugieri (Payraudeau, 1826) (original description)
Calliostoma virescens var. flavida Coen, 1933 accepted as Calliostoma virescens Coen, 1933 accepted as Calliostoma laugieri (Payraudeau, 1826) (original description)
Eulimella curtata Coen, 1933 accepted as Eulimella acicula (R. A. Philippi, 1836) (original description)
Eulimella flagellum Coen, 1933 accepted as Eulimella acicula (R. A. Philippi, 1836) (original description)
Gibbula philberti var. solitaria Monterosato, 1888 accepted as Gibbula philberti (Récluz, 1843) (additional source)
Hadriania brocchi [sic] accepted as Gracilipurpura craticulata (Bucquoy & Dautzenberg, 1882) (basis of record)
Morio echinophorus var. intermediata Coen, 1933 accepted as Galeodea echinophora (Linnaeus, 1758) (original description)
Murex brandaris var. nodosa Coen, 1933 accepted as Bolinus brandaris (Linnaeus, 1758) (original description)
Murex trunculus var. tetragona Stalio, 1933 accepted as Hexaplex trunculus (Linnaeus, 1758) (original description)
Muricopsis blainvillei var. hispida Coen, 1933 accepted as Muricopsis cristata (Brocchi, 1814) (original description)
Muricopsis blainvillei var. horrida Coen, 1933 accepted as Muricopsis cristata (Brocchi, 1814) (original description)
Muricopsis blainvillei var. oblonga Coen, 1933 accepted as Muricopsis cristata (Brocchi, 1814) (original description)
Muricopsis blainvillei var. spinulosa Coen, 1933 accepted as Muricopsis cristata (Brocchi, 1814) (original description)
Ocenebra erinaceus var. thersites Coen, 1933 accepted as Ocenebra erinaceus (Linnaeus, 1758) (original description)
Ocenebra erinaceus var. venetiana Coen, 1933 accepted as Ocenebra erinaceus (Linnaeus, 1758) (original description)
Ocinebra erinaceus var. triquetra Coen, 1933 accepted as Ocinebra erinaceus (Linnaeus, 1758) accepted as Ocenebra erinaceus (Linnaeus, 1758) (original description)
Ocinebrina aciculata var. scalariformis Monterosato, 1933 accepted as Ocinebrina aciculata aciculata (Lamarck, 1822) accepted as Ocinebrina aciculata (Lamarck, 1822) (original description)
Odostomia litoris Coen, 1933 accepted as Odostomia unidentata (Montagu, 1803) (original description)
Ovula carnea var. gibbosa Coen, 1933 accepted as Pseudosimnia carnea (Poiret, 1789) (original description)
Pyrgulina denticulus Coen, 1933 accepted as Chrysallida terebellum (R. A. Philippi, 1844) accepted as Parthenina terebellum (R. A. Philippi, 1844) (original description)
Sphaeronassa adriatica Coen, 1933 accepted as Tritia mutabilis (Linnaeus, 1758) (original description)
Sphaeronassa umbilicata Coen, 1933 accepted as Nassarius mutabilis (Linnaeus, 1758) accepted as Tritia mutabilis (Linnaeus, 1758) (original description)
Tiberiella Coen, 1933 accepted as Parthenina Bucquoy, Dautzenberg & Dollfus, 1883 (original description)
Turritella communis var. extensa Coen, 1933 accepted as Turritella communis Risso, 1826 accepted as Turritellinella tricarinata (Brocchi, 1814) (original description)