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)
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 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)