Amphidesma aequalis Say, 1822 accepted as Abra aequalis (Say, 1822) (original description)
Amphidesma orbiculata Say, 1822 accepted as Semele proficua (Pulteney, 1799) (original description)
Anatina papyratia Say, 1822 accepted as Periploma papyratium (Say, 1822) (original description)
Arca incongrua Say, 1822 accepted as Anadara brasiliana (Lamarck, 1819) (original description)
Arca transversa Say, 1822 accepted as Anadara transversa (Say, 1822) (original description)
Buccinum ornatum Say, 1822 (original description)
Bulla solitaria Say, 1822 accepted as Haminella solitaria (Say, 1822) (original description)
Cerithium dislocatum Say, 1822 accepted as Neoterebra dislocata (Say, 1822) (original description)
Columbella avara Say, 1822 accepted as Costoanachis avara (Say, 1822) (original description)
Conopea Say, 1822 (original description)
Corbula contracta Say, 1822 accepted as Caryocorbula contracta (Say, 1822) (original description)
Crepidula convexa Say, 1822 (original description)
Crepidula depressa Say, 1822 (original description)
Crepidula glauca Say, 1822 accepted as Crepidula convexa Say, 1822 (original description)
Crepidula plana Say, 1822 (original description)
Donax fossor Say, 1822 (original description)
Fissurella alternata Say, 1822 accepted as Diodora cayenensis (Lamarck, 1822) (original description)
Fulgur pyruloides Say, 1822 accepted as Fulguropsis pyruloides (Say, 1822) (original description)
Fusus cinereus Say, 1822 accepted as Urosalpinx cinerea (Say, 1822) (original description)
Lutraria canaliculata Say, 1822 accepted as Raeta plicatella (Lamarck, 1818) (original description)
Lutraria lineata Say, 1822 accepted as Anatina anatina (Spengler, 1802) (original description)
Mactra lateralis Say, 1822 accepted as Mulinia lateralis (Say, 1822) (original description)
Mactra oblonga Say, 1822 accepted as Mactrotoma fragilis (Gmelin, 1791) (original description)
Mactra similis Say, 1822 accepted as Spisula solidissima (Dillwyn, 1817) (original description)
Melampus bidentatus Say, 1822 (original description)
Melampus bidentatus var. lineatus Say, 1822 accepted as Melampus bidentatus Say, 1822 (original description)
Modiola castanea Say, 1822 accepted as Lioberus castanea (Say, 1822) (original description)
Mya acuta Say, 1822 accepted as Mya arenaria Linnaeus, 1758 (original description)
Mya mercenaria Say, 1822 accepted as Mya arenaria Linnaeus, 1758 (original description)
Mytilus cubitus Say, 1822 accepted as Brachidontes modiolus (Linnaeus, 1767) (original description)
Mytilus hamatus Say, 1822 accepted as Ischadium recurvum (Rafinesque, 1820) (original description)
Nassa acuta Say, 1822 accepted as Nassarius acutus (Say, 1822) (original description)
Nassa obsoleta Say, 1822 accepted as Ilyanassa obsoleta (Say, 1822) (original description)
Nassa trivittata Say, 1822 accepted as Ilyanassa trivittata (Say, 1822) (original description)
Nassa vibex Say, 1822 accepted as Phrontis vibex (Say, 1822) (original description)
Natica duplicata Say, 1822 accepted as Neverita duplicata (Say, 1822) (original description)
Natica heros Say, 1822 accepted as Euspira heros (Say, 1822) (original description)
Natica pusilla Say, 1822 accepted as Tectonatica pusilla (Say, 1822) (original description)
Nucula proxima Say, 1822 (original description)
Oliva mutica Say, 1822 accepted as Olivella mutica (Say, 1822) (original description)
Pandora trilineata Say, 1822 (original description)
Patella amoena Say, 1822 accepted as Testudinalia testudinalis (O. F. Müller, 1776) (original description)
Pecten concentricus Say, 1822 accepted as Argopecten irradians concentricus (Say, 1822) (original description)
Pecten dislocatus Say, 1822 accepted as Argopecten gibbus (Linnaeus, 1758) (original description)
Petricola fornicata Say, 1822 accepted as Petricolaria pholadiformis (Lamarck, 1818) (original description)
Pholas cuneiformis Say, 1822 accepted as Martesia cuneiformis (Say, 1822) (original description)
Pholas oblongata Say, 1822 accepted as Pholas campechiensis Gmelin, 1791 (original description)
Pholas truncata Say, 1822 accepted as Barnea truncata (Say, 1822) (original description)
Pyrula papyratia Say, 1822 accepted as Ficus papyratia (Say, 1822) (original description)
Ranella caudata Say, 1822 accepted as Eupleura caudata (Say, 1822) (original description)
Saxicava distorta Say, 1822 accepted as Hiatella arctica (Linnaeus, 1767) (original description)
Scalaria lineata Say, 1822 accepted as Gyroscala rupicola (Kurtz, 1860) (original description)
Solen costatus Say, 1822 accepted as Siliqua costata (Say, 1822) (original description)
Tellina alternata Say, 1822 accepted as Eurytellina alternata (Say, 1822) (original description)
Tellina flexuosa Say, 1822 accepted as Strigilla mirabilis (R. A. Philippi, 1841) (original description)
Tellina tenera Say, 1822 accepted as Ameritella agilis (W. Stimpson, 1858) (original description)
Theodoxus reclivatus Say, 1822 accepted as Vitta usnea (Röding, 1798) (original description)
Turbo irroratus Say, 1822 accepted as Littoraria irrorata (Say, 1822) (original description)
Turbo obligatus Say, 1822 accepted as Littorina saxatilis (Olivi, 1792) (original description)
Turbo palliatus Say, 1822 accepted as Littorina obtusata (Linnaeus, 1758) (original description)
Turbo vestita Say, 1822 accepted as Littorina saxatilis (Olivi, 1792) (original description)
Turritella alternata Say, 1822 accepted as Bittiolum alternatum (Say, 1822) (original description)
Turritella bisuturalis Say, 1822 accepted as Boonea bisuturalis (Say, 1822) (original description)
Turritella impressa Say, 1822 accepted as Boonea impressa (Say, 1822) (original description)
Venus castanea Say, 1822 accepted as Isocrassina castanea (Say, 1822) (original description)
Venus elevata Say, 1822 accepted as Chione elevata (Say, 1822) (original description)
Venus notata Say, 1822 accepted as Mercenaria mercenaria (Linnaeus, 1758) (original description)
Venus praeparca Say, 1822 accepted as Mercenaria campechiensis (Gmelin, 1791) (original description)

Maryland for Bulla solitaria Say, 1822 
Maryland Shelf for Turritella impressa Say, 1822 
New Jersey for Crepidula convexa Say, 1822 
New Jersey for Crepidula glauca Say, 1822 
New Jersey for Nassa vibex Say, 1822 
New Jersey for Solen costatus Say, 1822 
United States part of the North Atlantic Ocean for Pholas cuneiformis Say, 1822 
United States part of the North Atlantic Ocean for Ranella caudata Say, 1822 
Venezuela for Eupleura kugleri P. Jung, 1965 †