Conus granuliferus var. drnowitzensis De Gregorio, 1885 † accepted as Artemidiconus granularis (Borson, 1820) † accepted as Hemiconus granularis (Borson, 1820) † (original description)
Conus granuliferus var. opellus De Gregorio, 1885 † accepted as Artemidiconus granularis (Borson, 1820) † accepted as Hemiconus granularis (Borson, 1820) † (original description)
Conus mediterraneus var. alalmus De Gregorio, 1885 accepted as Conus ventricosus Gmelin, 1791 (original description)
Conus mediterraneus var. amigus De Gregorio, 1885 accepted as Conus ventricosus Gmelin, 1791 (original description)
Conus mediterraneus var. elpus De Gregorio, 1885 accepted as Conus ventricosus Gmelin, 1791 (original description)
Conus mediterraneus var. emisus De Gregorio, 1885 accepted as Conus ventricosus Gmelin, 1791 (original description)
Conus mediterraneus var. pereirae De Gregorio, 1885 accepted as Conus ventricosus Gmelin, 1791 (original description)
Conus mediterraneus var. rufatra De Gregorio, 1885 accepted as Conus ventricosus Gmelin, 1791 (original description)
Conus mediterraneus var. subviridis De Gregorio, 1885 accepted as Conus ventricosus Gmelin, 1791 (original description)
Conus ventricosus var. empismus De Gregorio, 1885 accepted as Conus ventricosus Gmelin, 1791 (original description)
Fissurella graeca var. ima De Gregorio, 1885 accepted as Diodora graeca (Linnaeus, 1758) (original description)
Fusus heterestrophus De Gregorio, 1885 (original description)
Malleus (Malvufundus) De Gregorio, 1885 represented as Malleus Lamarck, 1799 (original description)
Murex edwardsi f. vimus De Gregorio, 1885 accepted as Ocinebrina edwardsii (Payraudeau, 1826) accepted as Ocenebra edwardsii (Payraudeau, 1826) (original description)
Nassa dautzenbergi De Gregorio, 1885 accepted as Nassarius corniculum (Olivi, 1792) accepted as Tritia corniculum (Olivi, 1792) (original description)
Ranella reticularis f. isba De Gregorio, 1885 accepted as Ranella olearium (Linnaeus, 1758) (original description)
Triton cutaceus var. gernum De Gregorio, 1885 accepted as Cabestana cutacea (Linnaeus, 1767) (original description)
Triton cutaceus var. isgurum De Gregorio, 1885 accepted as Cabestana cutacea (Linnaeus, 1767) (original description)
Triton gyrinoides f. propeficarezzense De Gregorio, 1885 accepted as Charonia lampas (Linnaeus, 1758) (original description)
Triton parthenopaeum f. antupum De Gregorio, 1885 accepted as Monoplex parthenopeus (Salis Marschlins, 1793) (original description)
Triton parthenopaeum f. sbilpum De Gregorio, 1885 accepted as Monoplex parthenopeus (Salis Marschlins, 1793) (original description)
Triton parthenopaeum var. stimum De Gregorio, 1885 accepted as Monoplex parthenopeus (Salis Marschlins, 1793) (original description)
Trochus porellus de Gregorio, 1884 † accepted as Gibbula porellus (De Gregorio, 1884) † (original description)
Trophon (Chalmon) De Gregorio, 1885 accepted as Trophonopsis Bucquoy & Dautzenberg, 1882 (original description)
Trophon (Mipus) De Gregorio, 1885 accepted as Mipus De Gregorio, 1885 (original description)
Trophon (Pinon) De Gregorio, 1885 accepted as Pagodula Monterosato, 1884 (original description)
Trophon (Pirgos) De Gregorio, 1885 † (original description)
Turbo rugosus var. asdiucus De Gregorio, 1885 accepted as Bolma rugosa (Linnaeus, 1767) (original description)
Turbo rugosus var. asus De Gregorio, 1885 accepted as Bolma rugosa (Linnaeus, 1767) (original description)
Turbo rugosus var. perus De Gregorio, 1885 accepted as Bolma rugosa (Linnaeus, 1767) (original description)