Abra Lamarck, 1818 (original description)
Amphidesma Lamarck, 1818 accepted as Semele (Amphidesma) Lamarck, 1818 represented as Semele Schumacher, 1817 (original description)
Amphidesma corbuloides Lamarck, 1818 accepted as Lyonsia norwegica (Gmelin, 1791) (original description)
Amphidesma donacilla Lamarck, 1818 accepted as Donacilla cornea (Poli, 1791) (original description)
Amphidesma lucinale Lamarck, 1818 accepted as Loripes orbiculatus Poli, 1795 (original description)
Amphidesma nucleolata Lamarck, 1818 accepted as Abra tenuis (Montagu, 1803) (original description)
Amphidesma phaseolina Lamarck, 1818 accepted as Thracia phaseolina (Lamarck, 1818) (original description)
Amphinomidae Lamarck, 1818 (original description)
Anatina Lamarck, 1818 accepted as Laternula Röding, 1798 (original description)
Anatina longirostris Lamarck, 1818 accepted as Cuspidaria rostrata (Spengler, 1793) (original description)
Anatina myalis Lamarck, 1818 accepted as Thracia pubescens (Pulteney, 1799) (original description)
Anatina rupicola Lamarck, 1818 accepted as Thracia distorta (Montagu, 1803) accepted as Ixartia distorta (Montagu, 1803) (original description)
Anatina subrostrata Lamarck, 1818 accepted as Laternula anatina (Linnaeus, 1758) (original description)
Anatina truncata Lamarck, 1818 accepted as Cochlodesma praetenue (Pulteney, 1799) (original description)
Chloeia Lamarck, 1818 (original description)
Cirratulus Lamarck, 1818 (original description)
Clymene Lamarck, 1818 (original description)
Conchifera accepted as Bivalvia (original description)
Corbula nucleus Lamarck, 1818 accepted as Varicorbula gibba (Olivi, 1792) (original description)
Corbulidae Lamarck, 1818 (original description)
Crassina Lamarck, 1818 accepted as Astarte J. Sowerby, 1816 (original description)
Crassina danmoniensis [sic] accepted as Astarte sulcata (da Costa, 1778) (basis of record)
Cyprina Lamarck, 1818 accepted as Arctica Schumacher, 1817 (original description)
Cyrena Lamarck, 1818 accepted as Corbicula Megerle von Mühlfeld, 1811 (original description)
Cytherea arabica Lamarck, 1818 accepted as Circenita varia (Forsskål, 1775) (original description)
Cytherea florida Lamarck, 1818 accepted as Callista florida (Lamarck, 1818) (original description)
Cytherea lunaris Lamarck, 1818 accepted as Dosinia lupinus (Linnaeus, 1758) (original description)
Cytherea multilamella Lamarck, 1818 accepted as Venus nux Gmelin, 1791 (original description)
Cytherea venetiana Lamarck, 1818 accepted as Pitar rudis (Poli, 1795) (original description)
Dentalium novemcostatum Lamarck, 1818 accepted as Antalis novemcostata (Lamarck, 1818) (original description)
Dentalium tarentinum Lamarck, 1818 accepted as Antalis vulgaris (da Costa, 1778) (original description)
Donax anatinum Lamarck, 1818 accepted as Donax vittatus (da Costa, 1778) (original description)
Donax fabagella Lamarck, 1818 accepted as Donax semistriatus Poli, 1795 (original description)
Erpobdella Lamarck, 1818 (original description)
Euphrosine Lamarck, 1818 (original description)
Euphrosine myrtosa Lamarck, 1818 (original description)
Gastrochaena modiolina Lamarck, 1818 accepted as Rocellaria dubia (Pennant, 1777) (original description)
Glycera Lamarck, 1818 (original description)
Glycera unicornis Lamarck, 1818 (original description)
Glycimeris arctica Lamarck, 1818 accepted as Panomya norvegica (Spengler, 1793) (original description)
Hesione Lamarck, 1818 (original description)
Hesione splendida Lamarck, 1818 (original description)
Leodice Lamarck, 1818 (original description)
Leodice antennata Savigny in Lamarck, 1818 (original description)
Lucina sinuata Lamarck, 1818 accepted as Thyasira flexuosa (Montagu, 1803) (original description)
Lysidice Lamarck, 1818 (original description)
Mactra alba Lamarck, 1818 accepted as Mactra corallina (Linnaeus, 1758) (original description)
Mactra castanea Lamarck, 1818 accepted as Spisula solida (Linnaeus, 1758) (original description)
Mactra crassatella Lamarck, 1818 accepted as Spisula solida (Linnaeus, 1758) (original description)
Mactra deltoides Lamarck, 1818 accepted as Spisula subtruncata (da Costa, 1778) (original description)
Mactra fasciata Lamarck, 1818 accepted as Mactra stultorum (Linnaeus, 1758) (original description)
Mactra helvacea Lamarck, 1818 accepted as Mactra glauca Born, 1778 (original description)
Mactra lactea (Poli, 1795) sensu Lamarck, 1818 accepted as Mactra stultorum (Linnaeus, 1758) (additional source)
Mactra lilacea Lamarck, 1818 (original description)
Mactra rufa Lamarck, 1818 accepted as Mactra stultorum (Linnaeus, 1758) (original description)
Mysia Lamarck, 1818 (original description)
Nephtys hombergii Savigny in Lamarck, 1818 (original description)
Oenone Lamarck, 1818 (original description)
Palmyra Savigny, 1818 (original description)
Pandora obtusa Lamarck, 1818 accepted as Pandora pinna (Montagu, 1803) (original description)
Pandora rostrata Lamarck, 1818 accepted as Pandora albida (Röding, 1798) (original description)
Pectinaria Lamarck, 1818 (original description)
Petricola costellata Lamarck, 1818 accepted as Petricola lithophaga (Retzius, 1788) (original description)
Petricola fabagella Lamarck, 1818 (original description)
Petricola ochroleuca Lamarck, 1818 accepted as Gastrana fragilis (Linnaeus, 1758) (original description)
Petricola pholadiformis Lamarck, 1818 accepted as Petricolaria pholadiformis (Lamarck, 1818) (original description)
Petricola rocellaria Lamarck, 1818 accepted as Petricola lithophaga (Retzius, 1788) (original description)
Petricola ruperella Lamarck, 1818 accepted as Petricola lithophaga (Retzius, 1788) (original description)
Petricola semilamellata Lamarck, 1818 accepted as Petricola lithophaga (Retzius, 1788) (original description)
Pholas callosa Lamarck, 1818 accepted as Pholas dactylus Linnaeus, 1758 (original description)
Pholas dactyloides Lamarck, 1818 accepted as Barnea parva (Pennant, 1777) (original description)
Phyllodoce Lamarck, 1818 (original description)
Phyllodoce laminosa Savigny in Lamarck, 1818 (original description)
Plagusia tuberculata Lamarck, 1818 accepted as Plagusia squamosa (Herbst, 1790) (original description)
Pleione Lamarck, 1818 accepted as Amphinome Bruguière, 1789 (original description)
Polynoe Lamarck, 1818 (original description)
Psammobia Lamarck, 1818 accepted as Gari Schumacher, 1817 (original description)
Psammobia florida Lamarck, 1818 accepted as Gari depressa (Pennant, 1777) (original description)
Psammobia tellinella Lamarck, 1818 accepted as Gari tellinella (Lamarck, 1818) (original description)
Psammobia virgata Lamarck, 1818 accepted as Gari virgata (Lamarck, 1818) (original description)
Psammotaea Lamarck, 1818 accepted as Moerella P. Fischer, 1887 (original description)
Psammotaea tarentina Lamarck, 1818 accepted as Gastrana fragilis (Linnaeus, 1758) (original description)
Sabellaria Lamarck, 1818 (original description)
Saxicava gallicana Lamarck, 1818 accepted as Hiatella arctica (Linnaeus, 1767) (original description)
Sedentaria (original description)
Semele (Amphidesma) Lamarck, 1818 represented as Semele Schumacher, 1817 (original description)
Septaria Lamarck, 1818 accepted as Kuphus Guettard, 1770 (original description)
Serpulidae Rafinesque, 1815 (additional source)
Solemya Lamarck, 1818 (original description)
Solemya mediterranea Lamarck, 1818 accepted as Solemya togata (Poli, 1791) (original description)
Solen antiquatus Pulteney, 1799 accepted as Azorinus chamasolen (da Costa, 1778) (additional source)
Solen pygmaeus Lamarck, 1818 accepted as Phaxas pellucidus (Pennant, 1777) (original description)
Stenorhynchus Lamarck, 1818 (original description)
Syllis Lamarck, 1818 (original description)
Syllis monilaris Lamarck, 1818 (original description)
Tellina pulchella Lamarck, 1818 accepted as Moerella pulchella (Lamarck, 1818) (original description)
Thyasira Lamarck, 1818 (original description)
Ungulina oblonga Lamarck, 1818 accepted as Ungulina rubra de Roissy, 1804 (original description)
Ungulina transversa Lamarck, 1818 accepted as Ungulina rubra de Roissy, 1804 (original description)
Venerupis Lamarck, 1818 (original description)