Fissurella graeca var. ima De Gregorio, 1885 accepted as Diodora graeca (Linnaeus, 1758) (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 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)
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)