Amblema plicata (Say, 1817) (original description)
Anodonta cataracta Say, 1817 accepted as Pyganodon cataracta (Say, 1817) (original description)
Anodonta marginata Say, 1817 accepted as Pyganodon cataracta (Say, 1817) (original description)
Anodonta undulata Say, 1817 accepted as Strophitus undulatus (Say, 1817) (original description)
Cyclas dubia Say, 1817 accepted as Pisidium dubium (Say, 1817) (original description)
Cyclas similis Say, 1817 accepted as Sphaerium simile (Say, 1817) (original description)
Helix albolabris Say, 1817 accepted as Neohelix albolabris albolabris (Say, 1817) (original description)
Helix alternata Say, 1817 accepted as Anguispira alternata (Say, 1817) (original description)
Helix arborea Say, 1817 accepted as Zonitoides arboreus (Say, 1817) (original description)
Helix arboreus Say, 1817 accepted as Helix arborea Say, 1817 accepted as Zonitoides arboreus (Say, 1817) (original description)
Helix glaphyra Say, 1817 accepted as Oxychilus cellarius (O. F. Müller, 1774) (original description)
Helix tridentata Say, 1817 accepted as Triodopsis tridentata (Say, 1817) (original description)
Lymnaea catascopium Say, 1817 accepted as Ladislavella catascopium (Say, 1817) (original description)
Lymnaea decisa Say, 1817 accepted as Campeloma decisum (Say, 1817) (original description)
Lymnaea heterostropha Say, 1817 accepted as Physa heterostropha (Say, 1817) accepted as Physella acuta (Draparnaud, 1805) (original description)
Lymnaea jugularis Say, 1817 accepted as Lymnaea stagnalis (Linnaeus, 1758) (original description)
Lymnaea subcarinata Say, 1817 accepted as Lioplax subcarinata (Say, 1817) (original description)
Lymnaea virginica "Say, 1817" accepted as Elimia virginica (Gmelin, 1791) (basis of record)
Monodonta Say, 1817 accepted as Alasmidonta Say, 1818 (original description)
Odostomia corticaria Say, 1817 accepted as Gastrocopta corticaria (Say, 1817) (original description)
Paludina decisa Say, 1817 accepted as Campeloma decisum (Say, 1817) (original description)
Paludina subcarinata Say, 1817 accepted as Lioplax subcarinata (Say, 1817) (original description)
Planorbis bicarinatus Say, 1817 accepted as Helisoma anceps (Menke, 1830) (original description)
Planorbis parvus Say, 1817 accepted as Gyraulus parvus (Say, 1817) (original description)
Planorbis trivolvis Say, 1817 accepted as Planorbella trivolvis (Say, 1817) (original description)
Unio alatus Say, 1817 accepted as Potamilus alatus (Say, 1817) (original description)
Unio cariosus Say, 1817 accepted as Lampsilis cariosa (Say, 1817) (original description)
Unio crassus Say, 1817 accepted as Ortmanniana ligamentina (Lamarck, 1819) (original description)
Unio cylindricus Say, 1817 accepted as Theliderma cylindrica (Say, 1817) (original description)
Unio nasutus Say, 1817 accepted as Sagittunio nasutus (Say, 1817) (original description)
Unio ochraceus Say, 1817 accepted as Atlanticoncha ochracea (Say, 1817) (original description)
Unio ovatus Say, 1817 accepted as Lampsilis ovata (Say, 1817) (original description)
Unio purpureus Say, 1817 accepted as Elliptio complanata ([Lightfoot], 1786) (original description)
Unio undulata Say, 1817 accepted as Alasmidonta undulata (Say, 1817) (original description)

Georgia for Unio subangulatus I. Lea, 1840 

 Synonymy

 for Buccinum virginicum Gmelin, 1791

Say (1817) considered Gmelin's Buccinum virginicum (misspelled as "Buccinum virgineum") as "probably" the same ... [details]

 Synonymy

 for Elimia virginica "(Say, 1817)"

Say (1817) considered Gmelin's Buccinum virginicum (misspellled as Buccinum virgineum) as "probably" the same ... [details]