Arca incile Say, 1824 † accepted as Noetia incile (Say, 1824) † (original description)
Astarte undulata Say, 1824 † accepted as Ashtarotha undulata (Say, 1824) † (original description)
Corbula cuneata Say, 1824 (original description)
Corbula inaequale Say, 1824 accepted as Corbula inaequalis Say, 1824 (original description)
Cytherea convexa Say, 1824 accepted as Pitar morrhuanus (Dall, 1902) accepted as Agriopoma morrhuanum (Dall, 1902) (original description)
Dentalium attentuatum Say, 1824 † (original description)
Dispotaea Say, 1824 accepted as Crucibulum Schumacher, 1817 (original description)
Lucina anodonta Say, 1824 † accepted as Stewartia anodonta (Say, 1824) † (original description)
Lucina contracta Say, 1824 † accepted as Lucinoma contracta (Say, 1824) † (original description)
Lucina cribraria Say, 1824 † accepted as Lucinisca cribraria (Say, 1824) † (original description)
Natica interna Say, 1824 † accepted as Polinices (Euspira) internus (Say, 1824) † (original description)
Nucula concentrica Say, 1824 accepted as Saccella concentrica (Say, 1824) accepted as Nuculana concentrica (Say, 1824) (original description)
Panopaea reflexa Say, 1824 † accepted as Panopea reflexa Say, 1824 † (original description)
Pecten clintonius Say, 1824 † accepted as Placopecten clintonius (Say, 1824) † (original description)
Pecten jeffersonius Say, 1824 † accepted as Chesapecten jeffersonius (Say, 1824) † (original description)
Pecten madisonius Say, 1824 † accepted as Chesapecten madisonius (Say, 1824) † (original description)
Pecten septenarius Say, 1824 † accepted as Chesapecten septenarius (Say, 1824) † (original description)
Pectunculus subovatus Say, 1824 † accepted as Glycymeris subovata (Say, 1824) † (original description)
Plicatula marginata Say, 1824 † (original description)
Serpula granifera Say, 1824 † accepted as Serpulorbis granifera (Say, 1824) † accepted as Thylacodes granifera (Say, 1824) † (original description)
Tellina aequistriata Say, 1824 accepted as Serratina aequistriata (Say, 1824) (original description)
Turritella plebeia Say, 1824 † accepted as Mariacolpus plebeia (Say, 1824) † accepted as Mariacolpus plebeius (Say, 1824) † (original description)
Venericardia granulata Say, 1824 † accepted as Cyclocardia granulata (Say, 1824) † (original description)

Maryland for Lucina anodonta Say, 1824 † 
Maryland for Pecten clintonius Say, 1824 † 
Maryland for Pecten jeffersonius Say, 1824 † 
Maryland for Pecten septenarius Say, 1824 † 
Southeastern U.S.A. for Pecten madisonius Say, 1824 †