Calliostoma floreanae Parenzan, 1970 accepted as Calliostoma laugieri (Payraudeau, 1826) (original description)
Calliostoma neretinum Parenzan, 1970 accepted as Calliostoma laugieri (Payraudeau, 1826) (original description)
Charonia mirabilis Parenzan, 1970 accepted as Charonia lampas (Linnaeus, 1758) (original description)
Crepidula cataldi Parenzan, 1970 accepted as Crepidula unguiformis Lamarck, 1822 (original description)
Cyclope tarentina Parenzan, 1970 accepted as Cyclope neritea (Linnaeus, 1758) accepted as Tritia neritea (Linnaeus, 1758) (original description)
Eulima vitreoelongata Parenzan, 1970 accepted as Rissoa auriscalpium (Linnaeus, 1758) (original description)
Jujubinus decipiens Parenzan, 1970 accepted as Jujubinus striatus (Linnaeus, 1758) (original description)
Jujubinus depictus (Deshayes, 1835) accepted as Jujubinus striatus (Linnaeus, 1758) (basis of record)
Monia cladocorae Parenzan, 1974 accepted as Heteranomia squamula (Linnaeus, 1758) (original description)
Ostreola parenzani Settepassi, 1974 accepted as Ostrea stentina Payraudeau, 1826 (original description)
Retusa mariateresae Parenzan, 1970 accepted as Bulla striata Bruguière, 1792 (original description)
Tellina pellucida Brocchi, 1814 accepted as Abra renieri (Bronn, 1831) accepted as Abra alba (W. Wood, 1802) (source of synonymy)