Borsonia (Lictoconcha) De Gregorio, 1880 † (original description)
Borsonia (Lictoconcha) derelicta De Gregorio, 1880 † (original description)
Borsonia columnata De Gregorio, 1880 † (original description)
Borsonia duilii De Gregorio, 1880 † (original description)
Borsonia fera De Gregorio, 1880 † (original description)
Cerithium camilli De Gregorio, 1880 † accepted as Moniquia camilli (De Gregorio, 1880) † (original description)
Clausilia molonis De Gregorio, 1880 † (original description)
Cypraea (Cypraeovula) faracii De Gregorio, 1880 † accepted as Eotrivia faracii (De Gregorio, 1880) † (original description)
Diameza deshayesi De Gregorio, 1880 † (original description)
Helix (Helicella) modestiuscula De Gregorio, 1880 † accepted as Dentellocaracolus modestiusculus (De Gregorio, 1880) † (original description)
Helix (Helicella) planorbitanus De Gregorio, 1880 † (original description)
Helix (Zeolia) De Gregorio, 1880 † (original description)
Helix (Zeolia) turbicina De Gregorio, 1880 † (original description)
Rostellaria begiati De Gregorio, 1880 † accepted as Chedevillia begiati (De Gregorio, 1880) † (original description)
Rostellaria bellardi De Gregorio, 1880 † accepted as Terebellopsis bellardi (De Gregorio, 1880) † (original description)
Rostellaria insuturata De Gregorio, 1880 † accepted as Chedevillia insuturata (De Gregorio, 1880) † (original description)
Rostellaria pellegrini De Gregorio, 1880 † accepted as Eotibia pellegrini (De Gregorio, 1880) † (original description)
Semiranella De Gregorio, 1880 † (original description)