Anatina bonfornellensis De Gregorio, 1885 accepted as Thracia distorta (Montagu, 1803) accepted as Ixartia distorta (Montagu, 1803) (original description)
Aporrhais pespelecani var. panormitana De Gregorio, 1885 accepted as Aporrhais pespelecani (Linnaeus, 1758) (original description)
Aporrhais pespelecani var. viator De Gregorio, 1885 accepted as Aporrhais pespelecani (Linnaeus, 1758) (original description)
Arca merilla De Gregorio, 1884 accepted as Acar clathrata (Defrance, 1816) (original description)
Arca partannensis De Gregorio, 1884 accepted as Acar clathrata (Defrance, 1816) (original description)
Arca pirpa De Gregorio, 1884 accepted as Acar clathrata (Defrance, 1816) (original description)
Cardita (Coripia) De Gregorio, 1885 accepted as Coripia De Gregorio, 1885 (original description)
Cardita antiquata var. arita De Gregorio, 1885 accepted as Cardites antiquatus (Linnaeus, 1758) (original description)
Cardita antiquata var. ridulla De Gregorio, 1885 accepted as Cardites antiquatus (Linnaeus, 1758) (original description)
Cardita calyculata f. tirisa De Gregorio, 1885 accepted as Cardita calyculata (Linnaeus, 1758) (original description)
Cardita calyculata var. imperans De Gregorio, 1885 accepted as Cardita calyculata (Linnaeus, 1758) (original description)
Cardita calyculata var. pitus De Gregorio, 1885 accepted as Cardita calyculata (Linnaeus, 1758) (original description)
Cardita trapezia var. pirilla De Gregorio, 1885 accepted as Glans trapezia (Linnaeus, 1767) (original description)
Dolium galea var. epidermata De Gregorio, 1884 accepted as Tonna galea (Linnaeus, 1758) (original description)
Dolium galea var. spirintrorsum De Gregorio, 1884 accepted as Tonna galea (Linnaeus, 1758) (original description)
Dolium galea var. tardina De Gregorio, 1884 accepted as Tonna galea (Linnaeus, 1758) (original description)
Euthria cornea var. bellardii De Gregorio, 1885 accepted as Euthria cornea (Linnaeus, 1758) (original description)
Euthria cornea var. caprica De Gregorio, 1885 accepted as Euthria cornea (Linnaeus, 1758) (original description)
Euthria cornea var. crassilabra De Gregorio, 1885 accepted as Euthria cornea (Linnaeus, 1758) (original description)
Fissurella costaria var. tilla De Gregorio, 1885 accepted as Diodora italica (Defrance, 1820) (original description)
Fissurella graeca f. miranda De Gregorio, 1885 accepted as Diodora graeca (Linnaeus, 1758) (original description)
Fissurella graeca var. supragibba De Gregorio, 1885 accepted as Diodora graeca (Linnaeus, 1758) (original description)
Fissurella italica var. triamera De Gregorio, 1885 accepted as Diodora italica (Defrance, 1820) (original description)
Fissurella miriga De Gregorio, 1885 accepted as Diodora dorsata (Monterosato, 1878) (original description)
Fissurella mondelloensis De Gregorio, 1885 accepted as Fissurella nubecula (Linnaeus, 1758) (original description)
Fissurella vitoensis De Gregorio, 1885 accepted as Diodora italica (Defrance, 1820) (original description)
Fundella De Gregorio, 1884 accepted as Malleus Lamarck, 1799 (original description)
Fundella lioyi De Gregorio, 1884 accepted as Malleus regula (Forsskål, 1775) (original description)
Gastrana fragilis var. altavillensis De Gregorio, 1884 accepted as Gastrana fragilis (Linnaeus, 1758) (original description)
Gastrana fragilis var. nigella De Gregorio, 1884 accepted as Gastrana fragilis (Linnaeus, 1758) (original description)
Lucina (Anfilla) De Gregorio, 1885 accepted as Codakia Scopoli, 1777 (original description)
Lucina (Linga) De Gregorio, 1885 accepted as Linga De Gregorio, 1885 accepted as Lucina Bruguière, 1797 (original description)
Lucina spinifera var. gallensis De Gregorio, 1885 accepted as Myrtea spinifera (Montagu, 1803) (original description)
Lucina spinifera var. zina De Gregorio, 1885 accepted as Myrtea spinifera (Montagu, 1803) (original description)
Lutraria lutraria var. jeffreysi De Gregorio, 1885 accepted as Lutraria oblonga (Gmelin, 1791) (original description)
Lutraria lutraria var. panormensis De Gregorio, 1885 accepted as Lutraria lutraria (Linnaeus, 1758) (original description)
Lutraria oblonga var. altavillensis De Gregorio, 1885 accepted as Lutraria oblonga (Gmelin, 1791) (original description)
Lutraria oblonga var. tarantensis De Gregorio, 1885 accepted as Lutraria oblonga (Gmelin, 1791) (original description)
Madrela De Gregorio, 1884 accepted as Vulsella Röding, 1798 (original description)
Murex (Aplus) De Gregorio, 1885 accepted as Aplus De Gregorio, 1885 (original description)
Murex (Aplus) plicatus Gmelin, 1791 accepted as Tylothais virgata (Dillwyn, 1817) (basis of record)
Murex (Aplus) plicatus f. agapus De Gregorio, 1885 † (original description)
Murex (Aplus) plicatus sbipus De Gregorio, 1885 † accepted as Aplus zebus (De Gregorio, 1885) † (original description)
Murex (Aplus) plicatus zebus De Gregorio, 1885 † accepted as Aplus zebus (De Gregorio, 1885) † (original description)
Murex (Pirtus) De Gregorio, 1885 † accepted as Chicoreus (Triplex) G. Perry, 1810 represented as Chicoreus Montfort, 1810 (original description)
Murex (Pirtus) fiatus de Gregorio, 1885 † (original description)
Murex (Timbellus) De Gregorio, 1885 accepted as Timbellus De Gregorio, 1885 (original description)
Murex absonus var. abilus De Gregorio, 1885 † accepted as Favartia absona (De Cristofori & Jan, 1832) † (original description)
Murex absonus var. caribus De Gregorio, 1885 † accepted as Favartia absona (De Cristofori & Jan, 1832) † (original description)
Murex absonus var. sagus De Gregorio, 1885 † accepted as Favartia absona (De Cristofori & Jan, 1832) † (original description)
Murex amberus de Gregorio, 1885 accepted as Hexaplex austriacus (Tournouër, 1875) † (original description)
Murex brandaris var. gapus de Gregorio, 1885 † accepted as Bolinus subtorularius (R. Hoernes & Auinger, 1885) † (original description)
Murex brandaris var. girisus De Gregorio, 1885 accepted as Bolinus brandaris (Linnaeus, 1758) (original description)
Murex brandaris var. moreanus De Gregorio, 1885 accepted as Bolinus brandaris (Linnaeus, 1758) (original description)
Murex craticulatus var. bopirus De Gregorio, 1885 accepted as Hadriania craticulata Bucquoy & Dautzenberg, 1882 accepted as Gracilipurpura craticulata (Bucquoy & Dautzenberg, 1882) (original description)
Murex craticulatus var. cosgus De Gregorio, 1885 accepted as Hadriania craticulata Bucquoy & Dautzenberg, 1882 accepted as Gracilipurpura craticulata (Bucquoy & Dautzenberg, 1882) (original description)
Murex craticulatus var. ipimus De Gregorio, 1885 accepted as Hadriania craticulata Bucquoy & Dautzenberg, 1882 accepted as Gracilipurpura craticulata (Bucquoy & Dautzenberg, 1882) (original description)
Murex craticulatus var. oreteus De Gregorio, 1885 accepted as Hadriania craticulata Bucquoy & Dautzenberg, 1882 accepted as Gracilipurpura craticulata (Bucquoy & Dautzenberg, 1882) (original description)
Murex craticulatus var. propetipus De Gregorio, 1885 accepted as Hadriania craticulata Bucquoy & Dautzenberg, 1882 accepted as Gracilipurpura craticulata (Bucquoy & Dautzenberg, 1882) (original description)
Murex craticulatus var. rochetus De Gregorio, 1885 accepted as Hadriania craticulata Bucquoy & Dautzenberg, 1882 accepted as Gracilipurpura craticulata (Bucquoy & Dautzenberg, 1882) (original description)
Murex craticulatus var. trisus De Gregorio, 1885 accepted as Hadriania craticulata Bucquoy & Dautzenberg, 1882 accepted as Gracilipurpura craticulata (Bucquoy & Dautzenberg, 1882) (original description)
Murex cristatus var. adellus De Gregorio, 1885 accepted as Muricopsis cristata (Brocchi, 1814) (original description)
Murex cristatus var. ampus De Gregorio, 1885 accepted as Muricopsis cristata (Brocchi, 1814) (original description)
Murex cristatus var. berdicus De Gregorio, 1885 accepted as Muricopsis cristata (Brocchi, 1814) (original description)
Murex cristatus var. emus De Gregorio, 1885 accepted as Muricopsis cristata (Brocchi, 1814) (original description)
Murex dorbignyi f. afemus De Gregorio, 1885 accepted as Pollia dorbignyi (Payraudeau, 1826) accepted as Aplus dorbignyi (Payraudeau, 1826) (original description)
Murex dorbignyi var. carisus De Gregorio, 1885 accepted as Pollia dorbignyi (Payraudeau, 1826) accepted as Aplus dorbignyi (Payraudeau, 1826) (original description)
Murex edwardsi var. alpaus De Gregorio, 1885 accepted as Ocenebra edwardsii (Payraudeau, 1826) (original description)
Murex edwardsi var. capolus De Gregorio, 1885 accepted as Ocenebra edwardsii (Payraudeau, 1826) (original description)
Murex edwardsi var. perigmus De Gregorio, 1885 accepted as Ocenebra edwardsii (Payraudeau, 1826) (original description)
Murex edwardsi var. perilus De Gregorio, 1885 accepted as Ocenebra edwardsii (Payraudeau, 1826) (original description)
Murex erinaceus f. amirrus De Gregorio, 1885 accepted as Ocenebra erinaceus (Linnaeus, 1758) (original description)
Murex multicostatus var. ardocus De Gregorio, 1885 † accepted as Murexsul neocostatus (Cossmann, 1903) † (original description)
Murex multicostatus var. capisus De Gregorio, 1885 † accepted as Murexsul neocostatus (Cossmann, 1903) † (original description)
Murex pirotecus De Gregorio, 1885 accepted as Ocenebra erinaceus (Linnaeus, 1758) (original description)
Murex rutogus De Gregorio, 1885 † accepted as Dermomurex distinctus (De Cristofori & Jan, 1832) † (original description)
Murex tirtondus De Gregorio, 1885 (original description)
Murex trunculus f. arpellus De Gregorio, 1885 accepted as Hexaplex trunculus (Linnaeus, 1758) (original description)
Murex trunculus f. aspirtus De Gregorio, 1885 accepted as Hexaplex trunculus (Linnaeus, 1758) (original description)
Murex trunculus f. caudinus De Gregorio, 1885 accepted as Hexaplex trunculus (Linnaeus, 1758) (original description)
Murex trunculus f. epitus De Gregorio, 1885 accepted as Hexaplex trunculus (Linnaeus, 1758) (original description)
Murex trunculus f. escius De Gregorio, 1885 † accepted as Hexaplex truncatulus (Foresti, 1868) † (original description)
Murex trunculus f. galippus de Gregorio, 1885 † accepted as Hexaplex austriacus (Tournouër, 1875) † (original description)
Murex trunculus f. gelertus De Gregorio, 1885 † accepted as Hexaplex trunculus (Linnaeus, 1758) (original description)
Murex trunculus f. gringus De Gregorio, 1885 † accepted as Hexaplex trunculus (Linnaeus, 1758) (original description)
Murex trunculus f. lepigus De Gregorio, 1885 accepted as Hexaplex trunculus (Linnaeus, 1758) (original description)
Murex trunculus f. miriscus de Gregorio, 1885 † accepted as Hexaplex trunculus conglobatus (Michelotti, 1841) † (original description)
Murex trunculus f. percus De Gregorio, 1885 accepted as Hexaplex trunculus (Linnaeus, 1758) (original description)
Murex trunculus f. sbirsus De Gregorio, 1885 accepted as Hexaplex trunculus (Linnaeus, 1758) (original description)
Murex trunculus f. terigus de Gregorio, 1885 † accepted as Hexaplex rudis (Borson, 1821) † (original description)
Murex trunculus f. zicus De Gregorio, 1885 accepted as Hexaplex trunculus (Linnaeus, 1758) (original description)
Murex trunculus var. alcus De Gregorio, 1885 accepted as Hexaplex trunculus (Linnaeus, 1758) (original description)
Murex trunculus var. argisus De Gregorio, 1885 accepted as Hexaplex trunculus (Linnaeus, 1758) (original description)
Murex trunculus var. gipus De Gregorio, 1885 accepted as Hexaplex trunculus (Linnaeus, 1758) (original description)
Murex trunculus var. pultus De Gregorio, 1885 accepted as Hexaplex trunculus (Linnaeus, 1758) (original description)
Murex trunculus var. ritisus De Gregorio, 1885 accepted as Hexaplex trunculus (Linnaeus, 1758) (original description)
Murex trunculus var. spicus de Gregorio, 1885 † accepted as Hexaplex trunculus conglobatus (Michelotti, 1841) † (original description)
Ostrea edulis var. mimetica De Gregorio, 1884 accepted as Ostrea stentina Payraudeau, 1826 (original description)
Ostrea lamellosa var. barrensis de Gregorio, 1884 (original description)
Ostrea mitulamellosa de Gregorio, 1884 (original description)

France for Murex (Pirtus) fiatus de Gregorio, 1885 † 
Italian Exclusive Economic Zone for Pecten hyalinus var. niveoradiata De Gregorio, 1885 
Italian Exclusive Economic Zone for Pecten pesfelis var. alipus Gregorio, 1885 
Italy for Murex absonus var. abilus De Gregorio, 1885 † 
Italy for Murex absonus var. caribus De Gregorio, 1885 † 
Italy for Murex absonus var. sagus De Gregorio, 1885 † 
Italy for Murex multicostatus var. ardocus De Gregorio, 1885 † 
Italy for Murex multicostatus var. capisus De Gregorio, 1885 † 
Italy for Murex trunculus f. miriscus de Gregorio, 1885 † 
Italy for Murex trunculus var. spicus de Gregorio, 1885 † 
Italy for Tellina elliptica var. antisa De Gregorio, 1885 † 
Italy for Tellina elliptica var. pomella De Gregorio, 1885 † 
Sicilia for Pecten itorus Gregorio, 1885 † 
Sicilia for Pecten pesfelis f. arenellensis Gregorio, 1885 † 
Sicilia for Pecten peslutrae var. moreosiculus De Gregorio, 1885 † 
Sicilia for Pecten peslutrae var. siculus De Gregorio, 1885 † 
Sicilia for Pecten peslutrae var. simplexariosus De Gregorio, 1885 † 

 Nomenclature

 for Murex (Aplus) plicatus f. agapus De Gregorio, 1885 †

Nov. nom. pro Murex flexicauda sensu Hörnes 1853 (pl. 25, fig. 8). [details]

 Taxonomy

 for Arca pirpa De Gregorio, 1884

Nom. nov. pro Arca clathrata Defrance as listed by Mayer (Cat. Moll. Zurich, p. 78) which is different from ... [details]