Wright, B.H. 1888. Check List of North American Unionidae and Other Fresh Water Bivalves. 8 pp. (un paginated). Available electronically.
Anodonta angulata Lea = Gonidea angulata
Anodonta argentea Lea = Anodontoides denigratus
Anodonta arkansasensis [sic] Lea = Strophitus undulatus
Anodonta atrovirens Phil. = Anodontites montezuma
Anodonta bealei Lea = Pyganodon grandis
Anodonta benedictii Lea = Pyganodon grandis
Anodonta bridgesii Lea = Anodontites trapesialis
Anodonta buchanensis Lea = Anodontoides ferussacianus
Anodonta carinata Dunker = Anodontites tortilis
Anodonta carinifera Con. = Pilsbryoconcha carinifera
Anodonta coarctata Anton = Brachyanodon impura
Anodonta cornea Phill. [sic] = Anodontites montezuma
Anodonta corpulenta Cooper = Pyganodon grandis
Anodonta couperiana Lea = Utterbackiana couperiana
Anodonta cylindracea Lea = Anodontites cylindracea
Anodonta dallasiana Lea = Pyganodon grandis
Anodonta danielsii Lea = Pyganodon grandis
Anodonta dariensis Lea = Pyganodon cataracta
Anodonta decora Lea = Pyganodon grandis
Anodonta dejecta Lewis = Anodonta californiensis
Anodonta denigrata Lea = Anodontoides denigratus
Anodonta doliaris Lea = Pyganodon cataracta
Anodonta dunlapiana Lea = Utterbackiana couperiana
Anodonta edentula Say = Strophitus undulatus
Anodonta excurvata DeKay = Pyganodon cataracta
Anodonta exilior Lea = Brachyanodon impura
Anodonta ferruginea Lea = Anodontoides ferussacianus
Anodonta ferussaciana Lea = Anodontoides ferussacianus
Anodonta flava Anth = Pyganodon fragilis
Anodonta fluviatilis Dill. = Pyganodon cataracta
Anodonta footiana Lea = Pyganodon grandis
Anodonta fragilis Lam. = Pyganodon fragilis
Anodonta gesnerii Lea = Pyganodon grandis
Anodonta gibbosa Say = Pyganodon gibbosa
Anodonta gigantea Lea = Pyganodon grandis
Anodonta glandulosa Anth. = Pyganodon fragilis
Anodonta glauca Val. = Anodontites trapesialis
Anodonta globosa Lea = Pyganodon globosa
Anodonta granadensis Lea = Anodontites montezuma
Anodonta grandis Say = Pyganodon grandis
Anodonta hallenbeckii Lea = Pseudodontoideus connasaugaensis
Anodonta harpethensis Lea = Pyganodon grandis
Anodonta henryana Lea = Utterbackia imbecillis
Anodonta holtonis Lea = Anodontites elongata
Anodonta houghtonensis Cur. = Pyganodon grandis
Anodonta imbecilis [sic] Say = Utterbackia imbecillis
Anodonta imbricata Anth. = Pyganodon grandis
Anodonta implicata Say = Utterbackiana implicata
Anodonta impura Say = Brachyanodon impura
Anodonta inæquivalva Lea = Anodontites montezuma
Anodonta irisans Anth. = Pyganodon fragilis
Anodonta jewettii Lea = Anodontites trapesialis
Anodonta kennicottii Lea = Pyganodon grandis
Anodonta lacustris Lea = Pyganodon lacustris
Anodonta lenticularis Lea = Anodontites montezuma
Anodonta leonensis Lea = Pyganodon grandis
Anodonta leotandi [sic] Gup. = Anodontites leotaudi
Anodonta lewisii Lea = Pyganodon grandis
Anodonta linnæana Lea = Pyganodon grandis
Anodonta lugubris Say = Pyganodon grandis
Anodonta luteola Lea = Anodontites tortilis
Anodonta marryatana [sic] Lea = Pyganodon grandis
Anodonta micans Anth. = Anodonta californiensis
Anodonta modesta Lea = Anodontoides ferussacianus
Anodonta montezuma Lea = Anodontites montezuma
Anodonta nicaragua [sic] Phill. = Anodontites trapesialis
Anodonta nopalatensis Sow. = Pyganodon globosa
Anodonta oblita Lea = Anodontoides denigratus
Anodonta opaca Lea = Pyganodon grandis
Anodonta opalina Anth. = Pyganodon grandis
Anodonta ovata Lea = Pyganodon grandis
Anodonta pallida Anth. = Pyganodon fragilis
Anodonta papyracea Anth. = Strophitus undulatus
Anodonta pavonia Lea = Strophitus undulatus
Anodonta pepinianus Lea = Pyganodon grandis
Anodonta plana Lea = Pyganodon grandis
Anodonta plicata Hald. = Anodontoides denigratus
Anodonta salmonia Lea = Pyganodon grandis
Anodonta shafferiana [sic] Lea = Strophitus undulatus
Anodonta showalterii Lea = Strophitus radiatus
Anodonta simpsoniana Lea = Pyganodon grandis
Anodonta stewartiana Lea = Pyganodon grandis
Anodonta strebelii Lea = Anodontites cylindracea
Anodonta subangulata Anth. = Pyganodon grandis
Anodonta subcarinata Curr. = Pyganodon fragilis
Anodonta subcylindracea Lea = Anodontoides ferussacianus
Anodonta subgibbosa Anth. = Pyganodon grandis
Anodonta subinflata Anth. = Pyganodon grandis
Anodonta suborbiculata Say = Utterbackiana suborbiculata
Anodonta subvexa Con. = Pseudodontoideus subvexus
Anodonta tetragona Lea = Strophitus undulatus
Anodonta texasensis Lea = Pyganodon grandis
Anodonta tryonii Lea = Pyganodon cataracta
Anodonta undulata Say = Strophitus undulatus
Anodonta virens Lea = Pyganodon grandis
Anodonta virgulata Lea = Pyganodon cataracta
Anodonta wahlamatensis Lea = Anodonta nuttalliana
Anodonta wardiana Lea = Strophitus undulatus
Anodonta williamsii Lea = Pyganodon cataracta
Anodonta youkanensis Lea = Beringiana beringiana
Margaritana alabamensis Lea = Pseudodontoideus connasaugaensis
Margaritana arcula Lea = Alasmidonta arcula
Margaritana calceola Lea = Sulcularia viridis
Margaritana complanata Bar. = Pterosyna complanata
Margaritana confragosa Say = Arcidens confragosus
Margaritana connesaugaensis [sic] Lea = Pseudodontoideus connasaugaensis
Margaritana curreyana [sic] Lea = Pegias fabula
Margaritana dehiscens Say = Hemistena lata
Margaritana deltoidea Lea = Sulcularia viridis
Margaritana elliottii Lea = Strophitus radiatus
Margaritana elliptica Lea = Strophitus radiatus
Margaritana etowaensis Con. = Alasminota etowaensis
Margaritana fabula Lea = Pegias fabula
Margaritana georgiana Lea = Alasminota etowaensis
Margaritana gesnerii Lea = Pseudodontoideus subvexus
Margaritana hildrethiana Lea = Simpsonaias ambigua
Margaritana holstonia Lea = Alasminota holstonia
Margaritana margaritifera L. = Margaritifera margaritifera
Margaritana marginata Say = Alasmidonta marginata
Margaritana minor Lea = Sulcularia viridis
Margaritana quadrata Lea = Platynaias subviridis
Margaritana radiata Con. = Strophitus radiatus
Margaritana raveneliana Lea = Alasmidonta raveneliana
Margaritana rugosa Bar. = Lasmigona costata
Margaritana spillmanii Lea = Pseudodontoideus subvexus
Margaritana tombigbeensis Lea = Pseudodontoideus subvexus
Margaritana triangulata Lea = Alasmidonta triangulata
Margaritana undulata Say = Alasmidonta undulata
Unio abacus Hald. = Ptychobranchus fasciolaris
Unio abbevillensis Lea = Elliptio complanata
Unio aberrans Lea = Elliptio complanata
Unio aberti Con. = Cyprogenia aberti
Unio acuens Lea = Pleurobema oviforme
Unio acutissimus Lea = Medionidus acutissimus
Unio affinis Lea = Lampsilis straminea
Unio aheneus Lea = Elliptio ahenea
Unio alatus Say = Potamilus alatus
Unio altilis Con. = Hamiota altilis
Unio altus Con.
Unio amabilis Lea = Pleurobema pyriforme
Unio amœnus Lea = Cambarunio iris
Unio amplus Lea = Elliptio complanata
Unio amygdalum Lea = Villosa amygdalum
Unio anaticulus Lea = Pleurobema decisum
Unio andersonensis Lea = Fusconaia cor
Unio anodontoides Lea = Lampsilis teres
Unio anthonyi Lea = Elliptio monroensis
Unio apicinus Lea = Leaunio lienosus
Unio apiculatus Say = Quadrula quadrula
Unio appressus Lea = Fusconaia cuneolus
Unio approximus Lea = Lampsilis hydiana
Unio aquilus Lea = Elliptio pullata
Unio aratus Lea = Micronaias arata
Unio arcæformis Lea = Epioblasma arcaeformis
Unio arctatus Con. = Elliptio arctata
Unio arctior Lea = Eurynia dilatata
Unio arcus Con. = Elliptio arca
Unio argenteus Lea = Pleurobema oviforme
Unio arkansasensis Lea = Obovaria arkansasensis
Unio arquatus Con. = Ligumia recta
Unio asper Lea = Quadrula quadrula
Unio asperatus Lea = Pustulosa kieneriana
Unio asperrimus Lea = Quadrula quadrula
Unio atrocostatus Lea = Amblema plicata
Unio atromarginatus Lea = Elliptoideus sloatianus
Unio attenuatus Lea = Elliptio folliculata
Unio augustatus [sic] Lea = Elliptio angustata
Unio aureus Lea = Pustulosa pustulosa
Unio averellii Wright, 1888 = Villosa vibex
Unio averyi Lea = Nephronaias caldwellii
Unio aztecorum Phil. = Nephronaias aztecorum
Unio æquatus Lea = Elliptio icterina
Unio æruginosus More. = Nephronaias aeruginosa
Unio æsopus Green = Plethobasus cyphyus
Unio bairdianus Lea = Toxolasma texasiense
Unio baldwinensis Lea = Elliptio complanata
Unio barnesianus Lea = Pleuronaia barnesiana
Unio barrattii Lea = Elliptio icterina
Unio basalis Lea = Elliptio fumata
Unio beadleianus Lea = Pleurobema beadleianum
Unio bealei Lea = Toxolasma texasiense
Unio beaverensis Lea = Elliptio complanata
Unio bellulus Lea = Pleurobema oviforme
Unio berlandierii Lea = Cyrtonaias berlandierii
Unio biangulatus Lea = Ortmanniana pectorosa
Unio biemarginatus Lea = Epioblasma biemarginata
Unio bigbyensis Lea = Pleuronaia barnesiana
Unio binneyi Lea = Diplodon rhuacoicus
Unio bisselianus Lea = Uniomerus carolinianus
Unio blandianus Lea = Quadrula quadrula
Unio blandingianus Lea = Uniomerus carolinianus
Unio borealis A.F. Gray = Lampsilis radiata
Unio bournianus Lea = Pleurobema clava
Unio boydianus Lea = Atlanticoncha ochracea
Unio boykinianus Lea = Megalonaias nervosa
Unio bracteatus Gld. = Lampsilis bracteata
Unio brazosensis Lea = Amblema plicata
Unio brevidens Lea = Epioblasma brevidens
Unio brevis Lea = Pleurobema oviforme
Unio brumbyanus Lea = Ptychobranchus greenii
Unio buckleyi Lea = Elliptio jayensis
Unio buddianus Lea = Elliptio jayensis
Unio bulbosus Lea = Pleurobema pyriforme
Unio burkensis Lea = Elliptio complanata
Unio buxeus Lea = Elliptio congaraea
Unio cacao Lea = Pustulosa succissa
Unio cahabensis Lea = Pustulosa pustulosa
Unio caldwellii Lea = Nephronaias caldwellii
Unio caliginosus Lea = Leaunio lienosus
Unio calimitarum [sic] More. = Nephronaias calamitarum
Unio callosus Lea = Ortmanniana ligamentina
Unio camelopardilis Lea = Cambarunio taeniatus
Unio camelus Lea = Ptychobranchus fasciolaris
Unio camptodon Say = Uniomerus tetralasmus
Unio canadensis Lea = Lampsilis cardium
Unio capax Green = Potamilus capax
Unio caperatus Lea = Dromus dromas
Unio capsæformis Lea = Epioblasma capsaeformis
Unio cariosus Say = Lampsilis cariosa
Unio castaneus Lea = Obovaria arkansasensis
Unio castus Lea = Fusconaia masoni
Unio catawbensis Lea = Elliptio complanata
Unio catilus [sic] Con. = Pleurobema sintoxia
Unio cælatus Con. = Lemiox rimosus
Unio cerinus Con. = Fusconaia cerina
Unio charlottensis Lea = Platynaias decorata
Unio chathamensis Lea = Elliptio complanata
Unio chattanoogaensis Lea = Pleurobema decisum
Unio chickasawhensis Lea = Pleurobema beadleianum
Unio chunii Lea = Fusconaia chunii
Unio cicatricosus Say = Plethobasus cicatricosus
Unio cicur Lea = Uniomerus carolinianus
Unio cincinnatiensis Lea = Epioblasma cincinnatiensis
Unio cinnamomicus Lea = Pleurobema perovatum
Unio circulus Lea = Obovaria subrotunda
Unio circumactus Lea = Pleuronaia dolabelloides
Unio cirratus Lea = Elliptio complanata
Unio cistelæformis Lea = Elliptio cistellaeformis
Unio claibornensis Lea = Lampsilis straminea
Unio clarkianus Lea = Hamiota altilis
Unio clavus Lam. = Pleurobema clava
Unio clinchensis Lea = Pleurobema oviforme
Unio coccineus Lea = Pleurobema sintoxia
Unio cognatus Lea = Truncilla cognata
Unio collinus Con. = Parvaspina collina
Unio coloradoensis Lea = Potamilus purpuratus
Unio columbiensis [sic] Lea = Uniomerus columbensis
Unio compactus Lea = Epioblasma metastriata
Unio complanatus Sol. = Elliptio complanata
Unio compressissimus Lea = Ptychobranchus fasciolaris
Unio conasangœnsis [sic] Lea = Pleurobema oviforme
Unio concavus Lea = Villosa delumbis
Unio concestator Lea = Leaunio lienosus
Unio concolor Lea = Pleurobema perovatum
Unio confertus Lea = Elliptio icterina
Unio congaræus Lea = Elliptio congaraea
Unio conradianus Lea = Medionidus conradicus
Unio consanguineus Lea = Pleurobema decisum
Unio conspicuus Lea = Lampsilis radiata
Unio constrictus Con. = Venustaconcha constricta
Unio contiguus Lea = Leaunio lienosus
Unio contractus Lea = Elliptio complanata
Unio cooperianus Lea = Plethobasus cooperianus
Unio copei Lea = Leaunio vanuxemensis
Unio cor Con. = Fusconaia cor
Unio cordatus Raf. = Pleurobema cordatum
Unio corneus Lea = Elliptio fumata
Unio cornutus Barn. = Obliquaria reflexa
Unio coruscus Gld. = Elliptio jayensis
Unio corvinus Lea = Toxolasma paulum
Unio corvunculus Lea = Toxolasma corvunculus
Unio corvus Lea = Elliptio congaraea
Unio couchianus Lea = Quadrula couchiana
Unio crapulus Lea = Pleurobema fibuloides
Unio crassidens Lam. = Elliptio crassidens
+ Unio niger Conrad, 1836
Unio crebrivittatus Lea = Pleurobema decisum
Unio creperus Lea = Cambarunio iris
Unio crocatus Lea = Atlanticoncha ochracea
Unio cromwellii Lea = Toxolasma paulum
Unio crudus Lea = Pleuronaia barnesiana
Unio cumberlandicus Lea = Cambarunio simus
Unio cuneolus Lea = Fusconaia cuneolus
Unio cuneus Con. = Pleurobema sintoxia
Unio cunninghamii [sic] Wright = Elliptio jayensis
Unio cuprinus Lea = Popenaias metallica
Unio curatus Lea = Elliptio complanata
Unio curtus Lea = Pleurobema curtum
Unio curvatus Lea = Elliptio complanata
Unio cuspidatus Lea = Elliptio icterina
Unio cuvierianus Lea = Elliptio complanata
Unio cylindrellus Lea = Toxolasma cylindrellus
Unio cylindricus Say = Theliderma cylindrica
Unio cyrenoides Phil. = Arotonaias cyrenoides
Unio dactylus Lea = Cambarunio dactylus
Unio dallii Wright = Elliptio jayensis
Unio dariensis Lea = Elliptio dariensis
Unio datus Lea = Elliptio complanata
Unio decisus Lea = Pleurobema decisum
Unio declivis Say = Uniomerus declivis
Unio decoratus Lea = Platynaias decorata
Unio decumbens Lea = Elliptio complanata
Unio delphinulus More. = Delphinonaias largillierti
Unio delumbis Con. = Villosa delumbis
Unio denigratus Lea = Elliptio nigella
Unio depygis Con. = Obovaria subrotunda
Unio deviatus Anth. = Epioblasma turgidula
Unio diasensis [sic] Wright = Elliptio jayensis
Unio differtus Lea = Elliptio complanata
Unio difficilis Lea = Cambarunio nebulosus
Unio digitatus More. = Megalonaias nickliniana
Unio discrepans Lea = Cambarunio nebulosus
Unio discus Lea = Disconaias disca
Unio dispansus Lea = Cambarunio iris
Unio dispar Lea = Leaunio lienosus
Unio dissimilis Lea = Elliptio complanata
Unio distens [sic] Anth. = Lampsilis siliquoidea
Unio diversus Con. = Sulcularia viridis
Unio dolabrœformis [sic] Lea = Lampsilis dolabraeformis
Unio doliaris Lea = Hamiota altilis
Unio dollabelloides [sic] Lea = Pleuronaia dolabelloides
Unio dolosus Lea = Potamilus purpuratus
Unio donaciformis Lea = Truncilla donaciformis
Unio dooleyanns [sic] Lea = Elliptio fumata
Unio dorei Wright = Elliptio jayensis
Unio dorfeuillianus Lea = Pustulosa pustulosa
Unio dorsatus Lea = Elliptio congaraea
Unio downiei Lea = Elliptio downiei
Unio dromas Lea = Dromus dromas
Unio duttonianus Lea = Parvaspina lanceolata
Unio dysonii Lea = Nephronaias dysonii
Unio ebenus Lea = Reginaia ebenus
Unio edgarianus Lea = Fusconaia cor
Unio eightsii Lea = Megalonaias nervosa
Unio elegans Lea = Truncilla truncata
Unio elliottii Lea = Amblema elliottii
Unio ellipsiformis Con. = Venustaconcha ellipsiformis
Unio ellipsis Lea = Obovaria olivaria
Unio emmonsii Lea = Parvaspina lanceolata
Unio encarpus Lea = Arotonaias encarpa
Unio errans Lea = Elliptio icterina
Unio estabrookianus Lea = Pleuronaia estabrookiana
Unio exactus Lea = Elliptio complanata
Unio exacutus Lea = Elliptio folliculata
Unio excavatus Lea = Lampsilis ornata
Unio exiguus Lea = Villosa vibex
Unio extensus Lea = Elliptio pullata
Unio fabaceus Lea = Leaunio umbrans
Unio fabalis Lea = Paetulunio fabalis
Unio fallax Lea = Leaunio lienosus
Unio famelicus Gld. = Diplodon granosus
Unio fascinans Lea = Pleuronaia barnesiana
Unio fatuus Lea = Cambarunio iris
Unio favosus Lea = Pleurobema georgianum
Unio fibuloides Lea = Pleurobema fibuloides
Unio fisherianus Lea = Elliptio fisheriana
Unio flavescens Lea = Ptychobranchus greenii
Unio flavidulus Lea = Pleurobema perovatum
Unio flavidus Lea = Fusconaia cuneolus
Unio florentinus Lea = Epioblasma florentina
Unio floridensis Lea = Lampsilis floridensis
Unio foliatus Hild. = Epioblasma flexuosa
Unio folliculatus Lea = Elliptio folliculata
Unio fontanus Con. = Leaunio lienosus
Unio forbesianus Lea = Elliptio congaraea
Unio foremanianus Lea = Ptychobranchus foremanianus
Unio forsheyi Lea = Quadrula quadrula
Unio fragosus Con. = Quadrula fragosa
Unio fraternus Lea = Elliptio fraterna
Unio fryanus Wright = Elliptio occulta
Unio fucatus Lea = Cambarunio taeniatus
Unio fulgidus Lea = Pleurobema sintoxia
Unio fuliginosus Lea = Elliptio complanata
Unio fulvus Lea = Elliptio congaraea
Unio fumatus Lea = Elliptio fumata
Unio furvus Con. = Pleurobema rubellum
Unio fuscatus Lea = Elliptio occulta
Unio gabbianus Lea = Arotonaias gabbiana
Unio gastonensis Lea = Elliptio complanata
Unio geddingsianus Lea = Elliptio icterina
Unio geminus Lea = Elliptio complanata
Unio genthii Lea = Venustaconcha constricta
Unio genuinus Lea = Villosa delumbis
Unio georgianus Lea = Pleurobema georgianum
Unio gerhardtii Lea = Hamiota altilis
Unio germanus Lea = Toxolasma paulum
Unio gesnerii Lea = Elliptio fumata
Unio gibber Lea = Pleuronaia gibber
Unio gibbesianus Lea = Elliptio congaraea
Unio gibbosus Bar. = Eurynia dilatata
Unio glaber Lea = Cambarunio iris
Unio glandaceus Lea = Fusconaia cerina
Unio glans Lea = Toxolasma lividum
Unio globatus Lea = Fusconaia subrotunda
Unio goascoraensis [sic] Lea = Nephronaias goascoranensis
Unio gouldii Lea = Leaunio lienosus
Unio gracilentus Lea = Elliptio arctata
Unio gracilior Lea = Villosa vibex
Unio gracilis Bar = Potamilus fragilis
Unio granadensis Lea = Micronaias granadensis
Unio grandensis Con. = Cyrtonaias berlandierii
Unio grandidens Lea = Aculamprotula grandidens
Unio graniferus Lea = Cyclonaias tuberculata
Unio granulatus Lea = Toxolasma paulum
Unio greenii Con = Ptychobranchus greenii
Unio griffithianus Lea = Elliptio complanata
Unio guintardii [sic] Cragin = Amblema plicata
Unio haleianus Lea = Leaunio lienosus
Unio hallenbeckii Lea = Elliptio fumata
Unio hanleyanus [sic] Lea = Pleurobema hanleyianum
Unio hartmanii [sic] Lea = Pleurobema hartmanianum
Unio hartwrightii Newc. = Elliptio monroensis
Unio hastatus Lea = Elliptio icterina
Unio haysianus Lea = Epioblasma haysiana
Unio hazelhurstianus Lea = Parvaspina lanceolata
Unio hebes Lea = Uniomerus carolinianus
Unio hebetatus Con. = Fusconaia flava
Unio heermanii [sic] Lea = Cyrtonaias berlandierii
Unio hembeli Con, [sic] = Margaritifera hembeli
Unio hepaticus Lea = Elliptio icterina
Unio heros Say = Megalonaias nervosa
Unio heterodon Lea = Prolasmidonta heterodon
Unio higginsii Lea = Lampsilis higginsii
Unio hinkleyi Wright = Elliptio jayensis
Unio hippopæus [sic] Lea = Amblema plicata
Unio hjalmarsoni Dunk. = Nephronaias hjalmarsoni
Unio holstonensis Lea = Pleurobema oviforme
Unio hopetonensis Lea = Elliptio hopetonensis
Unio houstonensis Lea = Pustulosa pustulosa
Unio humerosus Lea = Elliptio complanata
Unio hyalinus Lea = Platynaias subviridis
Unio hydianus Lea = Lampsilis hydiana
Unio icterinus Con. = Elliptio icterina
Unio imbricatus Morch = Arotonaias encarpa
Unio incrassatus Lea = Elliptio crassidens
Unio indefinitus Lea = Elliptio complanata
Unio ineptus Lea = Uniomerus carolinianus
Unio inflatus Lea = Potamilus inflatus
Unio infucatus Con. = Pustulosa infucata
Unio infulgens Lea = Elliptio complanata
Unio infuscus Lea = Elliptio complanata
Unio insitatus [sic] Lea = Elliptio hopetonensis
Unio insolidus Lea = Platynaias decorata
Unio instructus Lea = Pleurobema verum
Unio insulsus Lea = Elliptio complanata
Unio intercedens Lea = Leaunio lienosus
Unio intermedius Con. = Theliderma intermedia
Unio interruptus Lea = Cambarunio taeniatus
Unio interventus Lea = Pleurobema perovatum
Unio invenustus Lea = Elliptio fumata
Unio iridescens Con.
Unio iris Lea = Cambarunio iris
Unio irrasus Lea = Pleurobema georgianum
Unio irroratus Lea = Cyprogenia stegaria
Unio irwinensis Lea = Elliptio complanata
Unio jamesianus Lea = Uniomerus tetralasmus
Unio jayanus [sic] Lea = Elliptio jayensis
Unio jejunus Lea = Elliptio complanata
Unio jewettii Lea = Uniomerus carolinianus
Unio johannis Lea = Pleurobema perovatum
Unio jonesii Lea = Cambarunio jonesii
Unio kienerianus Lea = Pustulosa kieneriana
Unio kirtlandianus Lea = Fusconaia subrotunda
Unio kleinianus Lea = Pustulosa kleiniana
Unio lacrymosus Lea = Quadrula quadrula
Unio lanceolatus Lea = Parvaspina lanceolata
Unio latecostatus Lea = Amblema plicata
Unio latus Lea = Elliptio roanokensis
Unio lawii Lea = Pleurobema oviforme
Unio lazarus Lea = Elliptio arctata
Unio lævissimus Lea = Potamilus ohiensis
Unio lecontianus Lea = Elliptio congaraea
Unio leibii Lea = Obovaria subrotunda
Unio leibmanni [sic] Phil. = Sphenonaias liebmanni
Unio lenior Lea = Epioblasma lenior
Unio lens Lea = Obovaria subrotunda
Unio lenticularis Lea = Pleuronaia barnesiana
Unio lepidus Gld. = Villosa amygdalum
Unio lesleyi Lea = Pleurobema oviforme
Unio lesueurianus Lea = Fusconaia subrotunda
Unio lewisii Lea = Pleurobema fibuloides
Unio lienosus Con. = Leaunio lienosus
Unio ligamentinus Lam. = Ortmanniana ligamentina
Unio ligatus Lea = Elliptio complanata
Unio limatulus Con. = Elliptio icterina
Unio lincecumii Lea = Amblema plicata
Unio lindsleyi Lea = Cambarunio taeniatus
Unio lineatus Lea = Lampsilis binominata
Unio linguæformis Lea = Leaunio lienosus
Unio litus Lea = Pleurobema pyriforme
Unio livingstonensis Lea = Elliptio icterina
Unio lucidus Lea = Elliptio icterina
Unio lugubris Lea = Elliptio icterina
Unio luridus Lea = Elliptio arca
Unio luteolus Lam. = Lampsilis radiata
Unio lyonii Lea = Pleuronaia barnesiana
Unio macnielii Lea = Nephronaias macnielii
Unio maconensis Lea = Elliptio pullata
Unio macrodon Lea = Truncilla macrodon
Unio maculatus Con. = Pleuronaia dolabelloides
Unio manubius Gld. = Uniomerus tetralasmus
Unio marginis Lea = Toxolasma paulum
Unio marshii Wright = Elliptio jayensis
Unio masoni Con. = Fusconaia masoni
Unio mæstus [sic] Lea = Toxolasma lividum
Unio mecklenbergensis Lea = Elliptio complanata
Unio medellinus Lea = Actinonaias medellina
Unio mediocris Lea = Elliptio complanata
Unio medius Lea = Pleurobema georgianum
Unio menkianus Lea = Cambarunio taeniatus
Unio mercerii Lea = Elliptio pullata
Unio meridithii [sic] Lea = Pleuronaia barnesiana
Unio merus Lea, 1852 = Fusconaia masoni
Unio metanevrus Rafinesque = Theliderma metanevra
Unio metastriatus Con. = Epioblasma metastriata
Unio mexicanus Phil.
Unio micans Lea = Elliptio icterina
Unio minor Lea = Toxolasma paulum
Unio mississippiensis Con. = Sagittunio subrostratus
Unio modicellus Lea = Epioblasma othcaloogensis
Unio modicus Lea = Pleurobema pyriforme
Unio modioliformis Lea = Villosa vibex
Unio monodontus Say = Cumberlandia monodonta
Unio monroensis Lea = Elliptio monroensis
Unio mooresianus Lea = Pleuronaia dolabelloides
Unio mortoni Con. = Pustulosa pustulosa
Unio moussonianus Lea = Elliptio congaraea
Unio muhlfeldianus Lea = Cambarunio dactylus
Unio multiplicatus Lea = Megalonaias nervosa
Unio multiradiatus Lea = Lampsilis fasciola
Unio mundus Lea = Pleurobema oviforme
Unio murrayensis Lea = Pleurobema stabile
Unio mytiloides Raf. = Pleurobema clava
Unio nashvillensis [sic] Lea = Sagittunio subrostratus
Unio nasutulus Lea = Elliptio producta
Unio nasutus Say = Sagittunio nasutus
Unio naviculoides Lea = Parvaspina lanceolata
Unio nebulosus Con. = Cambarunio nebulosus
Unio negatus Lea = Fusconaia cerina
Unio neglectus Lea = Platynaias subviridis
Unio neislerii Lea = Amblema neislerii
Unio neusensis Lea = Elliptio complanata
Unio newcombianus Lea = Arotonaias cyrenoides
Unio nicaraguensis Lea = Arotonaias gabbiana
Unio nicklinianus Lea = Megalonaias nickliniana
Unio nigellus Lea = Elliptio nigella
Unio nigerrimus Lea = Leaunio lienosus
Unio nigrinus Lea = Villosa vibex
Unio nitens Lea = Leaunio vanuxemensis
Unio nolanii [sic] Wright = Elliptio jayensis
Unio northamptonensis Lea = Elliptio complanata
Unio notatus Lea = Cambarunio simus
Unio novi-eboraci Lea = Cambarunio iris
Unio nubilus Lea = Elliptio complanata
Unio nucleopsis Con. = Pleurobema georgianum
Unio nux Lea = Pleurobema perovatum
Unio obesus Lea = Uniomerus carolinianus
Unio obfuscus Lea = Leaunio lienosus
Unio oblatus Lea = Elliptio icterina
Unio obliquus Lam. = Pleurobema cordatum
Unio oblongus Lea = Elliptio complanata
Unio obnubilus Lea = Elliptio icterina
Unio obscurus Lea = Cambarunio iris
Unio obtusus Lea = Lampsilis straminea
Unio obuncus Lea = Fusconaia cor
Unio occidens Lea = Lampsilis cardium
Unio occidentalis Con. = Ptychobranchus occidentalis
Unio occultus Lea = Elliptio occulta
Unio ochraceus Say = Atlanticoncha ochracea
Unio ocmlugeensis [sic] Lea = Elliptio icterina
Unio opacus Lea = Elliptio icterina
Unio orbiculatus Hild. = Ortmanniana ligamentina
+ Unio crassus Say, 1817
Unio orbiculatus Hild. = Obovaria subrotunda
Unio oregonensis Lea
Unio ornatus Lea = Pleuronaia barnesiana
Unio othcaloogensis Lea = Epioblasma othcaloogensis
Unio ovatus Say = Lampsilis ovata
Unio oviformis Con. = Pleurobema oviforme
Unio ozarkensis Call = Fusconaia ozarkensis
Unio pallescens Lea = Lampsilis straminea
Unio palliatus Rav. = Elliptio complanata
Unio pallidofulvus Lea = Pleurobema perovatum
Unio paludicolus Gld. = Uniomerus carolinianus
Unio papyraceus Gld. = Villosa amygdalum
Unio parvulus Lea = Medionidus parvulus
Unio parvus Bar. = Toxolasma parvum
Unio pattinoides Lea = Pleurobema oviforme
Unio patulus Lea = Pleurobema clava
Unio pauciplicatus Lea = Amblema plicata
Unio paulus Lea = Toxolasma paulum
Unio pauperculus Lea = Pustulosa pustulosa
Unio pawensis Lea = Uniomerus carolinianus
Unio pealii [sic] Lea = Obovaria olivaria
Unio pectorosus Con. = Ortmanniana pectorosa
Unio pellucidus Lea = Villosa vibex
Unio penicillatus Lea = Medionidus penicillatus
Unio penitus Con. = Epioblasma penita
Unio percoarctatus Lea = Elliptio complanata
Unio perdix Lea = Ortmanniana pectorosa
Unio perlatus Lea = Elliptio arctata
Unio perlucens Lea = Elliptio complanata
Unio permiscens Lea = Potamilus purpuratus
Unio pernodosus Lea = Pustulosa pustulosa
Unio pernulus Lea
Unio perovalis Con. = Hamiota perovalis
Unio perovatus Con. = Pleurobema perovatum
Unio perpastus Lea = Lampsilis straminea
Unio perpictus Lea = Cambarunio iris
Unio perplexus Lea = Epioblasma torulosa
Unio perplicatus Con. = Amblema plicata
Unio perpurpureus Lea = Venustaconcha trabalis
Unio perradiatus Lea = Lampsilis fasciola
Unio personatus Say = Epioblasma personata
Unio perstriatus Lea = Elliptio arctata
Unio persulcatus Lea = Nephronaias calamitarum
Unio pertenuis Lea = Platynaias subviridis
Unio pertrinus [sic] Gld. = Pustulosa petrina
Unio phaseolus Hild. = Ptychobranchus fasciolaris
Unio phillipsii Con. = Obliquaria reflexa
Unio pictus Lea = Cambarunio taeniatus
Unio pilaris Lea = Fusconaia subrotunda
Unio pileus Lea = Epioblasma personata
Unio pinguis Lea = Ortmanniana ligamentina
Unio placitus Lea = Hamiota perovalis
Unio plancus Lea = Cambarunio nebulosus
Unio planicostatus Lea = Cambarunio nebulosus
Unio planilaterus [sic] Con. = Elliptio congaraea
Unio planior Lea = Pleurobema oviforme
Unio plantii Lea = Elliptio fumata
Unio plenus Lea = Pleurobema plenum
Unio plicatus Lesu. = Amblema plicata
Unio pliciferus Lea = Sphenonaias plexus
Unio poeyanus Lea = Nephritica poeyana
Unio popeii Lea = Popenaias popeii
Unio porphyreus Lea = Leaunio umbrans
Unio porrectus Con. = Uniomerus tetralasmus
Unio postellii Lea = Elliptio complanata
Unio poulsoni Con. = Potamilus purpuratus
Unio powellii Lea = Lampsilis powellii
Unio prasinatus Con. = Elliptio jayensis
Unio prasinus Con. = Pustulosa pustulosa
Unio prattii Lea = Leaunio lienosus
Unio pressus Lea = Platynaias compressa
Unio prevostianus Lea = Villosa vibex
Unio productus Con. = Elliptio producta
Unio propinquus Lea = Epioblasma propinqua
Unio proprius Lea = Leaunio umbrans
Unio protensus Lea = Elliptio complanata
Unio proximus Lea = Leaunio lienosus
Unio pudicus Lea = Pleuronaia barnesiana
Unio pulcher Lea = Cambarunio taeniatus
Unio pullatus Lea = Elliptio pullata
Unio pullus Con. = Toxolasma pullus
Unio pulvinulus Lea = Pleurobema rubellum
Unio pumilus Lea = Fusconaia masoni
Unio punctatus Lea = Cambarunio taeniatus
Unio puniceus Hald. = Cambarunio iris
Unio purpuratus Lam. = Potamilus purpuratus
Unio purpurellus Lea = Elliptio purpurella
Unio purpuriatus Say
Unio purus Lea = Elliptio complanata
Unio pusillus Lea = Elliptio congaraea
Unio pustulatus Lea = Pustulosa nodulata
Unio pustulosus Lea = Pustulosa pustulosa
Unio pybasii Lea = Leaunio vanuxemensis
Unio pygmæus Lea = Platynaias subviridis
Unio pyramidatus Lea = Pleurobema sintoxia
Unio pyriformis Lea = Pleurobema pyriforme
Unio quadratus Lea = Elliptio fumata
Unio quadraus [sic] Lea = Diplodon rotundus
Unio quadrilaterus Lea = Elliptio complanata
Unio radians Lea = Cambarunio nebulosus
Unio radiatus Lam. = Lampsilis radiata
Unio radiolus Lea = Elliptio icterina
Unio radiosus Lea = Pleuronaia barnesiana
Unio raeensis Lea = Elliptio complanata
Unio raleighensis Lea = Elliptio complanata
Unio rangianus Lea = Epioblasma rangiana
Unio ratus Lea = Elliptio complanata
Unio raveneli Con. = Elliptio icterina
Unio ravenelianus Lea = Pleurobema oviforme
Unio ravistellus Mor. = Nephronaias ravistella
Unio rectus Lam. = Ligumia recta
Unio recurvatus Lea = Pleuronaia dolabelloides
Unio reeveianus Lea = Lampsilis reeveiana
Unio refulgens Lea = Pustulosa pustulosa
Unio regularis Lea = Cambarunio iris
Unio retusus Lam. = Obovaria retusa
Unio riddellii Lea = Pleurobema riddellii
Unio rivicolus Con. = Uniomerus carolinianus
Unio roanokensis Lea = Elliptio roanokensis
Unio rosaceus DeKay = Lampsilis siliquoidea
Unio rostellum Lea = Elliptio folliculata
Unio rostriformis Lea = Parvaspina lanceolata
Unio rostrum Lea = Elliptio complanata
Unio roswellensis Lea = Elliptio pullata
Unio rotundatus Lam. = Glebula rotundata
Unio rowellii Lea = Nephronaias rowellii
Unio rubellinus Lea = Medionidus acutissimus
Unio rubellus Con. = Pleurobema rubellum
Unio rubidus Lea = Fusconaia cerina
Unio rubiginosus Lea = Fusconaia flava
Unio rudis Con. = Pleurobema oviforme
Unio rufus Lea = Elliptio arca
Unio rufusculus Lea = Elliptio congaraea
Unio rugososulcatus Lea = Pachynaias spheniopsis
Unio rumphianus Lea = Quadrula quadrula
Unio rutersvillensis Lea = Sagittunio subrostratus
Unio rutilans Lea = Villosa vibex
Unio sagittæformis [sic] Lea = Parvaspina lanceolata
Unio saladoensis Lea = Cyrtonaias berlandierii
Unio salebrosus Lea = Elliptio fumata
Unio sampsonii Lea = Epioblasma sampsonii
Unio santeensis Lea = Elliptio complanata
Unio sapotalensis Lea = Actinonaias sapotalensis
Unio satillaensis Lea = Elliptio downiei
Unio satur Lea = Lampsilis satura
Unio savannahensis Lea = Elliptio complanata
Unio saxeus Con. = Leaunio lienosus
Unio sayanus [sic] Ward = Uniomerus tetralasmus
Unio scamnatus More. = Nephronaias scamnata
Unio schoolcraftii [sic] Lea = Pustulosa pustulosa
Unio scitulus Lea = Cambarunio iris
Unio securis Lea = Ellipsaria lineolata
Unio semigranosus Busch = Psoronaias semigranosa
Unio shepardianus Lea = Elliptio shepardiana
Unio showalterii Lea = Pleurobema hartmanianum
Unio similis Lea = Elliptio icterina
Unio simplex Lea = Ptychobranchus greenii
Unio simpsonii [sic] Wright = Elliptio jayensis
Unio simulans Lea = Pleurobema perovatum
Unio simus Lea = Cambarunio simus
Unio sloatianus Lea = Elliptoideus sloatianus
Unio solidus Lea = Pleurobema sintoxia
Unio sordidus Lea = Elliptio congaraea
Unio sowerbianus Lea = Epioblasma haysiana
Unio spadiceus Lea = Elliptio complanata
Unio sparsus Lea = Theliderma sparsa
Unio sparus Lea = Cambarunio jonesii
Unio spatulatus Lea = Venustaconcha ellipsiformis
Unio speciosus Lea = Quadrula quadrula
Unio sphæricus Lea = Pustulosa pustulosa
Unio spillmanii Lea = Hamiota perovalis
Unio spinosus Lea = Elliptio spinosa
Unio spissus Lea = Elliptio downiei
Unio splendidus Lea = Lampsilis splendida
Unio squalidus Lea = Uniomerus carolinianus
Unio squameus Lea = Elliptio complanata
Unio stabilis Lea = Pleurobema stabile
Unio stagnalis Con. = Villosa vibex
Unio stapes Lea = Theliderma stapes
Unio stearnsii Wright = Toxolasma paulum
Unio stewardsonii Lea = Epioblasma stewardsonii
Unio stonensis Lea = Eurynia dilatata
Unio stramineus Con. = Lampsilis straminea
Unio strebelii Lea = Nephronaias aztecorum
Unio striatulus Lea = Fusconaia masoni
Unio striatus Lea = Pleurobema pyriforme
Unio strigosus Lea = Elliptio arctata
Unio strumosus Lea = Elliptio congaraea
Unio subangulatus Lea = Hamiota subangulata
Unio subcylindraceus Lea = Elliptio angustata
Unio subellipsis Lea = Leaunio lienosus
Unio subflavus Lea = Elliptio complanata
Unio subgibbosus Lea = Elliptio arca
Unio subglobatus Lea = Pleuronaia dolabelloides
Unio subinflatus Con. = Elliptio complanata
Unio sublatus Lea = Elliptio pullata
Unio subniger Lea = Elliptio fumata
Unio subolivaceus Lea = Elliptio complanata
Unio subovatus Lea = Lampsilis cardium
Unio subparallelus Lea = Elliptio complanata
Unio subplanus Con. = Fusconaia masoni
Unio subrostratus Say = Sagittunio subrostratus
Unio subrotundus Lea = Fusconaia subrotunda
Unio subsquamosus Lea = Elliptio complanata
Unio subtentus Say = Ptychobranchus subtentus
Unio succissus Lea = Pustulosa succissa
Unio sudus Lea = Villosa vibex
Unio sulcatus Lea = Epioblasma obliquata
Unio symmetricus = Uniomerus tetralasmus
Unio tabascoensis Phil. [sic]
Unio taitianus Lea = Pleurobema taitianum
Unio tampicoensis Lea = Mesonaias tampicoensis
Unio tappanianus Lea = Platynaias subviridis
Unio taumilapanus Con.
Unio tæniatus Con. = Cambarunio taeniatus
Unio tecomatensis Lea = Mesonaias tampicoensis
Unio tellicoensis Lea = Pleuronaia barnesiana
Unio tenebricus Lea = Leaunio umbrans
Unio tenebrosus Con. = Lampsilis radiata
Unio tener Lea = Cambarunio iris
Unio tennesseensis Lea = Cambarunio taeniatus
Unio tenuissimus Lea = Potamilus leptodon
Unio tesserulæ Lea = Pleurobema oviforme
Unio tetralasmus Say = Uniomerus tetralasmus
Unio tetricus Lea = Elliptio pullata
Unio texasensis [sic] Lea = Toxolasma texasiense
Unio thorntonii Lea = Pleuronaia dolabelloides
Unio topekaensis Lea = Sagittunio subrostratus
Unio tortivus Lea = Elliptio arctata
Unio trabalis Con. = Venustaconcha trabalis
Unio trapezoides Lea = Plectomerus dombeyanus
Unio triangularis Bar. = Epioblasma triquetra
Unio trigonus Lea = Fusconaia flava
Unio trinacrus Lea = Ptychobranchus foremanianus
Unio troostii Lea = Venustaconcha troostensis
Unio troschelianus Lea = Pleurobema georgianum
Unio trossulus Lea = Villosa amygdalum
Unio tryonii [sic] Wright = Elliptio jayensis
Unio tuberculatus Bar. = Quadrula verrucosa
Unio tuberosus Lea = Theliderma metanevra
Unio tumesceus [sic] Lea = Pleuronaia barnesiana
Unio turgidulus Lea = Epioblasma turgidula
Unio turgidus Lea = Pustulosa pustulosa
Unio tuscumbiensis Lea = Fusconaia cuneolus
Unio tusmeyi [sic] Lea = Elliptio icterina
Unio uber Con. = Obovaria unicolor
Unio uhareensis Lea = Elliptio complanata
Unio umbrans Lea = Leaunio umbrans
Unio umbrosus Lea = Mesonaias umbrosa
Unio undulatus Bar. = Amblema plicata
Unio unicolor Lea = Obovaria unicolor
Unio upsoni Marsh = Ortmanniana ligamentina
Unio utriculus Lea = Fusconaia masoni
Unio validus Lea = Pleuronaia barnesiana
Unio vallatus Lea = Pustulosa pustulosa
Unio vanuxemii Lea = Leaunio vanuxemensis
Unio varicosus Lea = Plethobasus cicatricosus
Unio vaughanianus Lea = Sagittunio vaughanianus
Unio vellicatus Rve. = Nephronaias ravistella
Unio ventricosus Bar. = Lampsilis cardium
Unio venustus Lea = Venustaconcha ellipsiformis
Unio vera cruzensis Lea = Actinonaias medellina
Unio veræ pacis Trist = Nephronaias ravistella
Unio verrucosus Bar. = Cyclonaias tuberculata
Unio verus Lea = Pleurobema verum
Unio verutus Lea = Elliptio pullata
Unio vesicularis Lea = Villosa amygdalum
Unio vestitus Lea = Elliptio congaraea
Unio vibex Con. = Villosa vibex
Unio vicinus Lea = Elliptio complanata
Unio virens Lea = Elliptio complanata
Unio virescens Lea = Lampsilis virescens
Unio viridans Lea = Elliptio arctata
Unio viridicatus Lea = Elliptio icterina
Unio viridiradiatus Lea = Elliptio pullata
Unio viridis Raf. = Sulcularia viridis
Unio viridulus Lea = Parvaspina lanceolata
Unio waccamawensis Lea = Elliptio congaraea
Unio waltonii [sic] Wright = Elliptio ahenea
Unio wardii Lea = Theliderma metanevra
Unio websterii Wright = Elliptio monroensis
Unio weldonensis Lea = Elliptio complanata
Unio whiteianus Lea = Elliptio icterina
Unio woodwardianus [sic] Lea = Ptychobranchus foremanianus
Unio yadkinensis Lea = Elliptio complanata