Bela (Haedropleura) septangularis var. parvulata Sacco, 1904 † accepted as Haedropleura secalina (R. A. Philippi, 1844) (original description)
Bellardiella gracilis var. obsoletocostata Sacco, 1904 † accepted as Pleurotomoides gracilis (Montagu, 1803) (original description)
Chrysodomus (Chrysodomus) costulatus var. acutispira Sacco, 1904 † accepted as Calagrassor costulatus (Bellardi, 1873) † (original description)
Clathurella scalaria var. ligustica Sacco, 1904 † accepted as Pleurotomoides scalaria (De Cristofori & Jan, 1832) † (original description)
Clavatula gradata var. carinulata Sacco, 1904 † accepted as Clavatula carinulata Sacco, 1904 † (original description)
Daphnella salinasi var. pliocostulatissima Sacco, 1904 † accepted as Gymnobela salinasi (Calcara, 1841) † (original description)
Drillia (Cymatosyrinx) incrassata var. acutespirata Sacco, 1904 † accepted as Crassopleura maravignae (Bivona, 1838) (original description)
Drillia (Cymatosyrinx) incrassata var. dertomagna Sacco, 1904 † accepted as Crassopleura maravignae (Bivona, 1838) (original description)
Drillia (Cymatosyrinx) incrassata var. magnocostulata Sacco, 1904 † accepted as Crassopleura maravignae (Bivona, 1838) (original description)
Drillia (Cymatosyrinx) incrassata var. miominor Sacco, 1904 † accepted as Crassopleura maravignae (Bivona, 1838) (original description)
Drillia (Cymatosyrinx) sigmoidea var. pliomagna Sacco, 1904 † accepted as Crassopleura sigmoidea (Bronn, 1828) † (original description)
Drillia allionii var. pliosubaspirata Sacco, 1904 † accepted as Stenodrillia allionii (Bellardi, 1875) † (original description)
Drillia obtusangula var. dertocostata Sacco, 1904 † accepted as Benthomangelia obtusangula (Brocchi, 1814) † (original description)
Drillia obtusangula var. obtusocarinata Sacco, 1904 † accepted as Benthomangelia obtusangula (Brocchi, 1814) † (original description)
Eratoidea deshayesi var. fuscomaculata Sacco, 1904 † accepted as Marginella deshayesi Michelotti, 1847 † (original description)
Eratoidea deshayesi var. subadentata Sacco, 1904 † accepted as Marginella deshayesi Michelotti, 1847 † (original description)
Eratoidea deshayesi var. subrectelabiata Sacco, 1904 † accepted as Marginella deshayesi Michelotti, 1847 † (original description)
Fusus (Pagodula) squamulatus var. subacarinata Sacco, 1904 † accepted as Trophonopsis squamulata (Brocchi, 1814) † (original description)
Gadinia garnoti var. pliocapuloidea Sacco, 1904 † accepted as Trimusculus mammillaris (Linnaeus, 1758) (original description)
Isocardia (Miocardiella) Sacco, 1904 † (original description)
Isocardia (Miocardiella) taurinensis Sacco, 1904 † (original description)
Mantellum (Mantellina) Sacco, 1904 accepted as Mantellina Sacco, 1904 (original description)
Mantellum (Mantellina) inoceramoides Sacco, 1904 † (original description)
Manzonia (Seguenziella) Sacco, 1904 accepted as Alvania Risso, 1826 (original description)
Mitrolumnidae Sacco, 1904 accepted as Mitromorphidae T. L. Casey, 1904 (original description)
Murex (Favartia) absonus De Cristofori & Jan, 1832 † accepted as Favartia absona (De Cristofori & Jan, 1832) † (basis of record)
Murex (Favartia) absonus var. plioaspirata Sacco, 1904 † accepted as Favartia absona (De Cristofori & Jan, 1832) † (original description)
Murex (Hadriania) craticulatus var. mioincrassata Sacco, 1904 † (original description)
Murex (Poirieria) constantiae var. parvoligustica Sacco, 1904 † accepted as Murexsul parvoligustica (Sacco, 1904) † (original description)
Murex heptagonatus var. pliovaricosa Sacco, 1904 † accepted as Homalocantha heptagonata (Bronn, 1831) † (original description)
Myurella reticularis (Sacco, 1891) † accepted as Strioterebrum reticulare Sacco, 1891 † (basis of record)
Myurella reticularis var. cingulocostata (Sacco, 1891) † accepted as Strioterebrum reticulare var. cingulocostata Sacco, 1891 † accepted as Strioterebrum reticulare Sacco, 1891 † (basis of record)
Myurella reticularis var. parvulesulcata (Sacco, 1891) † accepted as Strioterebrum reticulare var. parvulesulcata Sacco, 1891 † accepted as Strioterebrum reticulare Sacco, 1891 † (basis of record)
Myurella reticularis var. percosticillata (Sacco, 1891) † accepted as Strioterebrum reticulare Sacco, 1891 † (basis of record)
Myurella reticularis var. subbitorquata (Sacco, 1891) † accepted as Strioterebrum reticulare Sacco, 1891 † (basis of record)
Myurella reticularis var. superneareticularis (Sacco, 1891) † accepted as Strioterebrum reticulare Sacco, 1891 † (basis of record)
Nassa (Arcularia) gibbosula var. pliopergibbosa Sacco, 1904 † accepted as Tritia gibbosula pliopergibbosa (Sacco, 1904) † (original description)
Nassa mutabilis var. plioacuta Sacco, 1904 † accepted as Tritia pliomagna (Sacco, 1904) † (original description)
Nassa mutabilis var. pliomagna Sacco, 1904 † accepted as Tritia pliomagna (Sacco, 1904) † (original description)
Pectinidae Rafinesque, 1815 (additional source)
Peratotoma (Bellardiella) semicostata var. pliostriata Sacco, 1904 † accepted as Belidaphne semicostata (Bellardi, 1847) † (original description)
Peratotoma (Bellardiella) textilis var. apertespiralata Sacco, 1904 † accepted as Rimosodaphnella textilis (Brocchi, 1814) † (original description)
Peratotoma (Bellardiella) textilis var. recurvata Sacco, 1904 † accepted as Rimosodaphnella textilis (Brocchi, 1814) † (original description)
Peratotoma montagui (Bellardi, 1877) † accepted as Leufroyia montagui (Bellardi, 1877) † (basis of record)
Peratotoma montagui var. ligusticistatissima Sacco, 1904 † accepted as Leufroyia montagui (Bellardi, 1877) † (original description)
Peratotoma reticulata (Brocchi, 1814) † accepted as Raphitoma echinata (Brocchi, 1814) † (basis of record)
Peratotoma reticulata var. pliocurta Sacco, 1904 † accepted as Raphitoma echinata (Brocchi, 1814) † (original description)
Peratotoma reticulata var. pliosubacostata Sacco, 1904 † accepted as Raphitoma echinata (Brocchi, 1814) † (original description)
Pleurotoma monilis var. granocostata Sacco, 1904 † accepted as Gemmula granocostata (Sacco, 1904) † (original description)
Pleurotoma rotata var. dertobtusata Sacco, 1904 † accepted as Gemmula rotata (Brocchi, 1814) † (original description)
Pleurotoma rotata var. dertocarinulata Sacco, 1904 † accepted as Gemmula dertocarinulata (Sacco, 1904) † (original description)
Pleurotoma rotata var. parvula Sacco, 1904 † accepted as Gemmula rotata (Brocchi, 1814) † (original description)
Pleurotoma rotata var. taurosuturata Sacco, 1904 † accepted as Gemmula rotata (Brocchi, 1814) † (original description)
Pleurotoma turricula var. sulcata Sacco, 1904 † accepted as Coronia contigua (Brocchi, 1814) † (original description)
Pseudotoma bonellii var. dertobrevis Sacco, 1904 † accepted as Pseudotoma bonellii (Bellardi, 1847) † (original description)
Pseudotoma bonellii var. dertolonga Sacco, 1904 † accepted as Pseudotoma bonellii (Bellardi, 1847) † (original description)
Pseudotoma bonellii var. obtusecostata Sacco, 1904 † accepted as Pseudotoma bonellii (Bellardi, 1847) † (original description)
Pseudotoma bonellii var. pliocenica Sacco, 1904 † accepted as Pseudotoma bonellii (Bellardi, 1847) † (original description)
Pseudotoma bonellii var. pseudoscalarata Sacco, 1904 † accepted as Pseudotoma bonellii (Bellardi, 1847) † (original description)
Pseudotoma intorta var. muticocarinata Sacco, 1904 † accepted as Pseudotoma intorta (Brocchi, 1814) † (original description)
Ranella gigantea var. pertuberculifera Sacco, 1904 † accepted as Ranella olearium (Linnaeus, 1758) (original description)
Raphitoma hispidula var. convexiuscula Sacco, 1904 † accepted as Vexiguraleus hispidulus (Bellardi, 1847) (original description)
Raphitoma hispidula var. pliocostatissima Sacco, 1904 † accepted as Vexiguraleus hispidulus (Bellardi, 1847) (original description)
Raphitoma hispidula var. pliocostulatissima Sacco, 1904 † accepted as Vexiguraleus hispidulus (Bellardi, 1847) (original description)
Raphitoma hispidula var. pliosubcancellata Sacco, 1904 † accepted as Vexiguraleus hispidulus (Bellardi, 1847) (original description)
Surcula intermedia var. miopercostata Sacco, 1904 † accepted as Fusiturris intermedia (Bronn, 1831) † (original description)
Surcula intermedia var. taurocarinata Sacco, 1904 † accepted as Fusiturris intermedia (Bronn, 1831) † (original description)
Taurasinae Sacco, 1904 † accepted as Rapaninae Gray, 1853 (original description)
Terebra acuminata var. subgranulata Sacco, 1904 † accepted as Terebra acuminata Borson, 1820 † (original description)
Triton (Eutritonium) eogassinense Sacco, 1904 † accepted as Ranella olearia (Linnaeus, 1758) accepted as Ranella olearium (Linnaeus, 1758) (original description)
Typhis (Typhinellus) tetrapterus var. protetrapterus Sacco, 1890 † accepted as Typhinellus protetrapterus (Sacco, 1904) † (original description)
Vasum excrenatum Sacco, 1904 † accepted as Vasum cancellatum (Grateloup, 1845) † accepted as Globivasum cancellatum (Grateloup, 1845) † (original description)
Vasum excrenatum var. duchassaingi (Michelotti, 1861) † accepted as Vasum cancellatum (Grateloup, 1845) † accepted as Globivasum cancellatum (Grateloup, 1845) † (basis of record)
Volutella crenata var. bellardii Rovereto, 1900 † accepted as Vasum excrenatum var. duchassaingi (Michelotti, 1861) † accepted as Vasum cancellatum (Grateloup, 1845) † accepted as Globivasum cancellatum (Grateloup, 1845) † (source of synonymy)

Italy for Bellardiella gracilis var. obsoletocostata Sacco, 1904 † 
Italy for Clathurella scalaria var. ligustica Sacco, 1904 † 
Italy for Daphnella salinasi var. pliocostulatissima Sacco, 1904 † 
Italy for Murex (Favartia) absonus var. plioaspirata Sacco, 1904 † 
Italy for Murex (Poirieria) constantiae var. parvoligustica Sacco, 1904 † 
Italy for Murex heptagonatus var. pliovaricosa Sacco, 1904 † 
Italy for Nassa (Arcularia) gibbosula var. pliopergibbosa Sacco, 1904 † 
Italy for Peratotoma (Bellardiella) textilis var. apertespiralata Sacco, 1904 † 
Italy for Peratotoma (Bellardiella) textilis var. recurvata Sacco, 1904 † 
Italy for Pleurotoma monilis var. granocostata Sacco, 1904 † 
Italy for Typhis (Typhinellus) tetrapterus var. protetrapterus Sacco, 1890 †