Ampullaria pealiana I. Lea, 1838 accepted as Pomacea pealiana (I. Lea, 1838) (original description)
Anodonta angulata I. Lea, 1838 accepted as Gonidea angulata (I. Lea, 1838) (original description)
Anodonta buchanensis I. Lea, 1838 accepted as Anodontoides ferussacianus (I. Lea, 1834) (original description)
Anodonta cylindracea I. Lea, 1838 accepted as Anodontites cylindracea (I. Lea, 1838) (original description)
Anodonta decora I. Lea, 1838 accepted as Pyganodon grandis (Say, 1829) (original description)
Anodonta exilis I. Lea, 1838 accepted as Pilsbryoconcha exilis (I. Lea, 1838) (original description)
Anodonta gigantea I. Lea, 1838 accepted as Pyganodon grandis (Say, 1829) (original description)
Anodonta newtoniensis I. Lea, 1838 accepted as Pyganodon implicata (Say, 1829) accepted as Utterbackiana implicata (Say, 1829) (original description)
Anodonta nuttalliana I. Lea, 1838 (original description)
Anodonta oregonensis I. Lea, 1838 (original description)
Anodonta ovata I. Lea, 1838 accepted as Pyganodon grandis (Say, 1829) (original description)
Anodonta pavonia I. Lea, 1838 accepted as Strophitus undulatus (Say, 1817) (original description)
Anodonta pepinianus I. Lea, 1838 accepted as Pyganodon grandis (Say, 1829) (original description)
Anodonta salmonia I. Lea, 1838 accepted as Pyganodon grandis (Say, 1829) (original description)
Anodonta subcylindracea I. Lea, 1838 accepted as Anodontoides ferussacianus (I. Lea, 1834) (original description)
Anodonta wahlamatensis I. Lea, 1838 accepted as Anodonta nuttalliana I. Lea, 1838 (original description)
Anodonta wardiana I. Lea, 1838 accepted as Strophitus undulatus (Say, 1817) (original description)
Bulimus colombianus I. Lea, 1838 accepted as Drymaeus colombianus (I. Lea, 1838) (original description)
Bulimus corneus I. Lea, 1838 accepted as Bulimulus buenavistensis Pilsbry, 1897 (original description)
Bulimus decoratus I. Lea, 1838 accepted as Drymaeus decoratus (I. Lea, 1838) (original description)
Bulimus gibbonius I. Lea, 1838 accepted as Plekocheilus gibbonius (I. Lea, 1838) (original description)
Bulimus glandiformis I. Lea, 1838 accepted as Plekocheilus glandiformis (I. Lea, 1838) (original description)
Bulimus gracilis I. Lea, 1838 accepted as Drymaeus leai Pilsbry, 1898 (original description)
Bulimus lacteus I. Lea, 1838 accepted as Drymaeus lacteus (I. Lea, 1838) (original description)
Bulimus maculatus I. Lea, 1838 accepted as Drymaeus semimaculatus Pilsbry, 1898 (original description)
Bulimus parvus I. Lea, 1838 accepted as Drymaeus multilineatus (Say, 1825) (original description)
Bulimus pealianus I. Lea, 1838 accepted as Drymaeus pealianus (I. Lea, 1838) (original description)
Bulimus virgo I. Lea, 1838 accepted as Drymaeus colombianus (I. Lea, 1838) (original description)
Carocolla hydiana I. Lea, 1838 accepted as Labyrinthus plicatus (Born, 1778) (original description)
Cyclostoma maculata I. Lea, 1838 accepted as Leptopoma maculatum (I. Lea, 1838) (original description)
Cyclostoma popayana I. Lea, 1838 accepted as Incidostoma popayanum (I. Lea, 1838) (original description)
Helix californiensis I. Lea, 1838 accepted as Helminthoglypta californiensis (I. Lea, 1838) (original description)
Helix columbiana I. Lea, 1838 accepted as Vespericola columbiana (I. Lea, 1838) accepted as Vespericola columbianus (I. Lea, 1838) (original description)
Helix magnifica I. Lea, 1838 accepted as Solaropsis gibboni (L. Pfeiffer, 1846) (original description)
Helix mitchelliana I. Lea, 1838 accepted as Mesodon mitchellianus (I. Lea, 1838) (original description)
Helix nickliniana I. Lea, 1838 accepted as Helminthoglypta nickliniana nickliniana (I. Lea, 1838) (original description)
Helix nuttalliana I. Lea, 1838 accepted as Monadenia fidelis fidelis (J. E. Gray, 1834) (original description)
Helix oregonensis I. Lea, 1838 accepted as Monadenia fidelis fidelis (J. E. Gray, 1834) (original description)
Helix townsendiana I. Lea, 1838 accepted as Allogona townsendiana (I. Lea, 1838) (original description)
Helix vancouverensis I. Lea, 1838 accepted as Haplotrema vancouverense (I. Lea, 1838) (original description)
Helix wardiana I. Lea, 1838 accepted as Ventridens ligera (Say, 1821) (original description)
Iridina coelestis I. Lea, 1838 accepted as Mutela rostrata (Rang, 1835) (original description)
Lasmigona holstonia (I. Lea, 1838) (original description)
Limnaea solida I. Lea, 1838 accepted as Catascopia apicina (I. Lea, 1838) accepted as Ladislavella apicina (I. Lea, 1838) (original description)
Lymnea apicina I. Lea, 1838 accepted as Ladislavella apicina (I. Lea, 1838) (original description)
Lymnea solida I. Lea, 1838 accepted as Ladislavella apicina (I. Lea, 1838) (original description)
Margarita (Margaritana) arcula I. Lea, 1838 accepted as Alasmidonta arcula (I. Lea, 1838) (original description)
Margarita (Unio) graniferus I. Lea, 1838 accepted as Rotundaria tuberculata (Rafinesque, 1820) accepted as Cyclonaias tuberculata (Rafinesque, 1820) (original description)
Margarita (Unio) splendidus I. Lea, 1838 accepted as Lampsilis splendida (I. Lea, 1838) (original description)
Margaritana deltoidea I. Lea, 1838 accepted as Alasmidonta viridis (Rafinesque, 1820) (original description)
Margaritana fabula I. Lea, 1838 accepted as Pegias fabula (I. Lea, 1838) (original description)
Margaritana holstonia I. Lea, 1838 accepted as Lasmigona holstonia (I. Lea, 1838) (original description)
Margaron (Unio) pumilus (I. Lea, 1838) accepted as Fusconaia masoni (Conrad, 1834) (original description)
Melania inflata I. Lea, 1838 accepted as Leptoxis dilatata (Conrad, 1835) (original description)
Melania plicata I. Lea, 1838 accepted as Melania menkiana I. Lea, 1843 accepted as Brotia costula (Rafinesque, 1833) (original description)
Melania plicifera I. Lea, 1838 accepted as Juga plicifera (I. Lea, 1838) (original description)
Melania spixiana I. Lea, 1838 accepted as Lithasia armigera (Say, 1821) (original description)
Melania troostiana I. Lea, 1838 accepted as Elimia troostiana (I. Lea, 1838) (original description)
Paludina hyalina I. Lea, 1838 (original description)
Paludina nickliniana I. Lea, 1838 accepted as Fontigens nickliniana (I. Lea, 1838) (original description)
Paludina nuclea I. Lea, 1838 accepted as Fluminicola virens (I. Lea, 1838) (original description)
Paludina nuttalliana I. Lea, 1838 accepted as Fluminicola nuttallianus (I. Lea, 1838) (original description)
Paludina pallida I. Lea, 1838 accepted as Birgella subglobosa (Say, 1825) (original description)
Paludina sinistrosa I. Lea, 1838 accepted as Lanistes sinistrosus (I. Lea, 1838) (original description)
Paludina virens I. Lea, 1838 accepted as Fluminicola virens (I. Lea, 1838) (original description)
Physa aurea I. Lea, 1838 accepted as Physella gyrina (Say, 1821) (original description)
Planorbis hyalina I. Lea, 1838 accepted as Promenetus exacuous (Say, 1821) (original description)
Planorbis lens I. Lea, 1838 accepted as Planorbis brogniartianus I. Lea, 1843 accepted as Planorbis brongniartianus I. Lea, 1843 accepted as Dilatata brongniartiana (I. Lea, 1843) (original description)
Polygyra dorfeuilliana I. Lea, 1838 accepted as Daedalochila dorfeuilliana (I. Lea, 1838) (original description)
Polygyra troostiana I. Lea, 1838 accepted as Daedalochila troostiana (I. Lea, 1838) (original description)
Spatha I. Lea, 1838 accepted as Mutela Scopoli, 1777 (original description)
Succinea aperta I. Lea, 1838 (original description)
Unio arctior I. Lea, 1838 accepted as Eurynia dilatata (Rafinesque, 1820) (original description)
Unio barnesianus I. Lea, 1838 accepted as Pleuronaia barnesiana (I. Lea, 1838) (original description)
Unio bengalensis I. Lea, 1838 accepted as Simpsonella purpurea (Valenciennes, 1827) (original description)
Unio carbonarius I. Lea, 1838 accepted as Barynaias plexus (Conrad, 1838) (original description)
Unio claibornensis I. Lea, 1838 accepted as Lampsilis straminea (Conrad, 1834) (original description)
Unio coccineus I. Lea, 1838 accepted as Pleurobema sintoxia (Rafinesque, 1820) (original description)
Unio contradens I. Lea, 1838 accepted as Lens contradens (I. Lea, 1838) (original description)
Unio creperus I. Lea, 1838 accepted as Villosa iris (I. Lea, 1829) accepted as Cambarunio iris (I. Lea, 1829) (original description)
Unio cumberlandicus I. Lea, 1838 accepted as Cambarunio simus (I. Lea, 1838) (original description)
Unio discus I. Lea, 1838 accepted as Disconaias discus (I. Lea, 1838) (original description)
Unio dolabraeformis I. Lea, 1838 accepted as Lampsilis dolabraeformis (I. Lea, 1838) (original description)
Unio dorfeuillianus I. Lea, 1838 accepted as Rotundaria pustulosa (I. Lea, 1831) accepted as Cyclonaias pustulosa (I. Lea, 1831) (original description)
Unio fisherianus I. Lea, 1838 accepted as Elliptio fisheriana (I. Lea, 1838) (original description)
Unio folliculatus I. Lea, 1838 accepted as Elliptio folliculata (I. Lea, 1838) (original description)
Unio gibber I. Lea, 1838 accepted as Pleuronaia gibber (I. Lea, 1838) (original description)
Unio glaber I. Lea, 1838 accepted as Villosa iris (I. Lea, 1829) accepted as Cambarunio iris (I. Lea, 1829) (original description)
Unio hopetonensis I. Lea, 1838 accepted as Elliptio hopetonensis (I. Lea, 1838) (original description)
Unio hydianus I. Lea, 1838 accepted as Lampsilis hydiana (I. Lea, 1838) (original description)
Unio interruptus I. Lea, 1838 accepted as Cambarunio taeniatus pictus (I. Lea, 1834) (original description)
Unio jayensis I. Lea, 1838 accepted as Elliptio jayensis (I. Lea, 1838) (original description)
Unio jejunus I. Lea, 1838 accepted as Elliptio complanata ([Lightfoot], 1786) (original description)
Unio katherinae I. Lea, 1838 accepted as Lasmigona complanata (Barnes, 1823) (original description)
Unio lamellatus I. Lea, 1838 accepted as Lamellidens lamellatus (I. Lea, 1838) (original description)
Unio lecontianus I. Lea, 1838 accepted as Elliptio congaraea (I. Lea, 1831) (original description)
Unio lugubris I. Lea, 1838 accepted as Elliptio icterina (Conrad, 1834) (original description)
Unio medellinus I. Lea, 1838 accepted as Actinonaias medellina (I. Lea, 1838) (original description)
Unio menkianus I. Lea, 1838 accepted as Cambarunio taeniatus pictus (I. Lea, 1834) (original description)
Unio muhlfeldianus I. Lea, 1838 accepted as Cambarunio dactylus dactylus (I. Lea, 1840) (original description)

Colombia for Bulimus corneus I. Lea, 1838 
Oregon for Paludina nuttalliana I. Lea, 1838 

 Spelling

 for Unio novieboraci I. Lea, 1838

Originally spelled Unio ebo-eboraci [details]