Acanthocardia (Sphaerocardium) Coen, 1933 accepted as Acanthocardia J. E. Gray, 1851 (basis of record)
Amycla corniculum var. luteostoma Coen, 1933 accepted as Tritia corniculum (Olivi, 1792) (original description)
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)
Bolinus brandaris var. adunca Coen, 1933 accepted as Bolinus brandaris (Linnaeus, 1758) (original description)
Bolinus brandaris var. bicaudata Coen, 1933 accepted as Bolinus brandaris (Linnaeus, 1758) (original description)
Bolinus brandaris var. cingulata Coen, 1933 accepted as Bolinus brandaris (Linnaeus, 1758) (original description)
Bolinus brandaris var. ecaudata Coen, 1933 accepted as Bolinus brandaris (Linnaeus, 1758) (original description)
Bolinus brandaris var. fragilis Coen, 1933 accepted as Bolinus brandaris (Linnaeus, 1758) (original description)
Bolinus brandaris var. polii Coen, 1933 accepted as Bolinus brandaris (Linnaeus, 1758) (original description)
Calliostoma (Jujubinus) exasperatum var. istriana Coen, 1933 accepted as Jujubinus exasperatus (Pennant, 1777) (original description)
Calliostoma bullatum Coen, 1933 accepted as Calliostoma conulum [sic] accepted as Calliostoma conulus (Linnaeus, 1758) (original description)
Calliostoma conulus var. tumidula Coen, 1933 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)
Columbella rustica var. syriaca Coen, 1933 accepted as Columbella rustica (Linnaeus, 1758) (original description)
Conus (Chelyconus) mediterraneus var. producta Coen, 1933 accepted as Conus ventricosus Gmelin, 1791 (original description)
Conus (Chelyconus) mediterraneus var. turrita Coen, 1933 accepted as Conus ventricosus Gmelin, 1791 (original description)
Conus galloprovincialis var. turrita Coen, 1933 accepted as Conus ventricosus Gmelin, 1791 (original description)
Conus mediterraneus var. acuminatus Coen, 1933 (original description)
Conus mediterraneus var. alba Coen, 1933 accepted as Conus ventricosus Gmelin, 1791 (original description)
Conus mediterraneus var. castanea Coen, 1933 accepted as Conus ventricosus Gmelin, 1791 (original description)
Conus mediterraneus var. flavescens Coen, 1933 accepted as Conus ventricosus Gmelin, 1791 (original description)
Conus mediterraneus var. interrupta Coen, 1933 accepted as Conus ventricosus Gmelin, 1791 (original description)
Cyclonassa neritea var. carinata Coen, 1933 accepted as Tritia neritea (Linnaeus, 1758) (original description)
Cyclonassa neritea var. diluta Coen, 1933 accepted as Tritia neritea (Linnaeus, 1758) (original description)
Cyclonassa neritea var. fasciata Coen, 1933 accepted as Tritia neritea (Linnaeus, 1758) (original description)
Cyclonassa neritea var. vernicata Coen, 1933 accepted as Tritia neritea (Linnaeus, 1758) (original description)
Cypraea lurida var. liburnica Coen, 1933 accepted as Luria lurida (Linnaeus, 1758) (original description)
Cypraea lurida var. obstructa Coen, 1933 accepted as Luria lurida (Linnaeus, 1758) (original description)
Cypraea pirum var. physoides Coen, 1933 accepted as Zonaria pyrum (Gmelin, 1791) (original description)
Eucardium (Rudicardium) tuberculatum var. angulata Coen, 1933 accepted as Acanthocardia tuberculata (Linnaeus, 1758) (original description)
Eucardium (Rudicardium) tuberculatum var. depauperata Coen, 1933 accepted as Acanthocardia tuberculata (Linnaeus, 1758) (original description)
Eucardium (Rudicardium) tuberculatum var. multiplicata Coen, 1933 accepted as Acanthocardia tuberculata (Linnaeus, 1758) (original description)
Eucardium (Sphaerocardium) Coen, 1933 accepted as Acanthocardia J. E. Gray, 1851 (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 delicata Coen, 1933 (original description)
Gibbula euxinica Coen, 1933 (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)
Hadriania brocchii var. carinatella Coen, 1933 accepted as Hadriania craticulata Bucquoy & Dautzenberg, 1882 accepted as Gracilipurpura craticulata (Bucquoy & Dautzenberg, 1882) (original description)
Littorina saxatilis var. sanguinea Coen, 1933 accepted as Littorina saxatilis (Olivi, 1792) (original description)
Morio echinophora var. bivaricosa Coen, 1933 accepted as Galeodea echinophora (Linnaeus, 1758) (original description)
Morio echinophora var. bonanni Coen, 1933 accepted as Galeodea echinophora (Linnaeus, 1758) (original description)
Morio echinophora var. intermediata Coen, 1933 accepted as Galeodea echinophora (Linnaeus, 1758) (original description)
Morio echinophora var. polycingulata Coen, 1933 accepted as Galeodea echinophora (Linnaeus, 1758) (original description)
Morio echinophorus var. intermediata Coen, 1933 accepted as Galeodea echinophora (Linnaeus, 1758) (original description)
Murex (Muricanthus) trunculus var. spinosa Coen, 1933 accepted as Hexaplex trunculus (Linnaeus, 1758) (original description)
Murex brandaris var. longispina Coen, 1933 accepted as Bolinus brandaris (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)
Nassa (Hinia) mammillata var. abnormis Coen, 1933 accepted as Tritia nitida (Jeffreys, 1867) (original description)
Nassa (Hinia) mammillata var. acutior Coen, 1933 accepted as Tritia nitida (Jeffreys, 1867) (original description)
Nassa (Hinia) mammillata var. bicolorata Coen, 1933 accepted as Tritia nitida (Jeffreys, 1867) (original description)
Nassa (Hinia) mammillata var. clodiensis Coen, 1933 accepted as Tritia nitida (Jeffreys, 1867) (original description)
Nassa (Hinia) mammillata var. monilifera Coen, 1933 accepted as Tritia nitida (Jeffreys, 1867) (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 (Dentocinebra) labiosum var. fasciata Coen, 1933 accepted as Ocenebra erinaceus (Linnaeus, 1758) (original description)
Ocinebra erinaceus var. thersites 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)
Ocinebra erinaceus var. venetiana Coen, 1933 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)
Pollia dorbignyi var. armata Coen, 1933 accepted as Aplus dorbignyi (Payraudeau, 1826) (original description)
Pyrgulina alabastrum Coen, 1933 accepted as Parthenina indistincta (Montagu, 1808) (original description)
Pyrgulina brevicula var. rejecta Coen, 1933 accepted as Partulida incerta (Milaschewitsch, 1916) accepted as Spiralinella incerta (Milaschewitsch, 1916) accepted as Spiralina alpinoligustica (Sacco, 1892) (original description)
Pyrgulina canaliculata Coen, 1933 accepted as Parthenina indistincta (Montagu, 1808) (original description)
Pyrgulina coeni Coen, 1933 accepted as Partulida incerta (Milaschewitsch, 1916) accepted as Spiralinella incerta (Milaschewitsch, 1916) accepted as Spiralina alpinoligustica (Sacco, 1892) (original description)
Pyrgulina cylindracea Coen, 1933 accepted as Parthenina terebellum (R. A. Philippi, 1844) (original description)
Pyrgulina denticulus Coen, 1933 accepted as Chrysallida terebellum (R. A. Philippi, 1844) accepted as Parthenina terebellum (R. A. Philippi, 1844) (original description)
Pyrgulina mitis Coen, 1933 accepted as Parthenina terebellum (R. A. Philippi, 1844) (original description)
Pyrgulina ordita Coen, 1933 accepted as Parthenina juliae (de Folin, 1872) (original description)
Pyrgulina pyrgulella Coen, 1933 accepted as Parthenina terebellum (R. A. Philippi, 1844) (original description)
Pyrgulina vixstriata Coen, 1933 accepted as Parthenina juliae (de Folin, 1872) (original description)
Scalaria (Clathrus) communis var. coronata G. Coen, 1933 accepted as Epitonium clathrus (Linnaeus, 1758) (original description)
Scalaria (Clathrus) communis var. nana G. Coen, 1933 accepted as Epitonium clathrus (Linnaeus, 1758) (original description)
Sphaeronassa adriatica Coen, 1933 accepted as Tritia mutabilis (Linnaeus, 1758) (original description)
Sphaeronassa mutabilis var. adriatica Coen, 1933 accepted as Tritia mutabilis (Linnaeus, 1758) (original description)
Sphaeronassa mutabilis var. deformis Coen, 1933 accepted as Tritia mutabilis (Linnaeus, 1758) (original description)
Sphaeronassa mutabilis var. umbilicata 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)
Tiberia (Tiberiella) Coen, 1933 accepted as Parthenina Bucquoy, Dautzenberg & Dollfus, 1883 (original description)
Tiberia (Tiberiella) pretiosa Coen, 1933 accepted as Parthenina monterosatii (Clessin, 1900) (original description)
Tiberiella Coen, 1933 accepted as Parthenina Bucquoy, Dautzenberg & Dollfus, 1883 (original description)
Tricolia (Eudora) tenuis var. meleagris Coen, 1933 accepted as Tricolia tenuis (Michaud, 1829) (original description)
Trochocochlea corcyrensis Coen, 1933 accepted as Phorcus mutabilis (R. A. Philippi, 1851) (original description)
Trochocochlea mutabilis (R. A. Philippi, 1851) accepted as Phorcus mutabilis (R. A. Philippi, 1851) (basis of record)
Trochocochlea mutabilis var. acutidens Coen, 1933 accepted as Phorcus mutabilis (R. A. Philippi, 1851) (original description)
Truncularia trunculus var. aspera Coen, 1933 accepted as Hexaplex trunculus (Linnaeus, 1758) (original description)
Truncularia trunculus var. bulo Coen, 1933 accepted as Hexaplex trunculus (Linnaeus, 1758) (original description)