Amphidesma Lamarck, 1818 accepted as Semele Schumacher, 1817 (original description)
Anatina Lamarck, 1818 accepted as Laternula Röding, 1798 (original description)
Artemisus Lamarck, 1818 (original description)
Aspergillum Lamarck, 1818 accepted as Brechites Guettard, 1770 (original description)
Avicularia Lamarck, 1818 (original description)
Biapholius Lamarck, 1818 accepted as Hiatella Bosc, 1801 (original description)
Chloeia Lamarck, 1818 (original description)
Cirratulus Lamarck, 1818 (original description)
Cytherina Lamarck, 1818 accepted as Cythere Müller, 1785 (original description)
Erpobdella Lamarck, 1818 (original description)
Euphrosine Lamarck, 1818 (original description)
Galeolaria Lamarck, 1818 (original description)
Gastrochoena Lamarck, 1818 accepted as Gastrochaena Spengler, 1783 (original description)
Glycera Lamarck, 1818 (original description)
Halithea Lamarck, 1818 accepted as Aphrodita Linnaeus, 1758 (original description)
Hepathus Lamarck, 1818 accepted as Hepatus Latreille, 1802 (original description)
Hesione Savigny in Lamarck, 1818 (original description)
Leodice Lamarck, 1818 (original description)
Leptopus Lamarck, 1818 accepted as Phalangipus Latreille, 1828 (original description)
Lycoris Lamarck, 1818 accepted as Nereis Linnaeus, 1758 (original description)
Lysidice Lamarck, 1818 (original description)
Pectinaria Lamarck, 1818 (original description)
Piscicola Lamarck, 1818 (original description)
Polynoe Lamarck, 1818 (original description)
Psammobia Lamarck, 1818 accepted as Gari Schumacher, 1817 (original description)
Psammotaea Lamarck, 1818 accepted as Gari Schumacher, 1817 (original description)
Sabellaria Lamarck, 1818 (original description)
Septaria Lamarck, 1818 accepted as Kuphus Guettard, 1770 (original description)
Solemya Lamarck, 1818 (original description)
Stenorynchus Lamarck, 1818 accepted as Stenorhynchus Lamarck, 1818 (original description)
Syllis Savigny in Lamarck, 1818 (original description)
Tellinides Lamarck, 1818 (original description)
Teredina Lamarck, 1818 † (original description)
Trochetia Lamarck, 1818 accepted as Trocheta Dutrochet, 1817 (original description)
Venerupis Lamarck, 1818 (original description)
Vermilia Lamarck, 1818 (original description)