Amnigenia catskillensis (Vanuxem)
+ Cypricardites angustatus Lesley, 1889
Anodonta abyssina Morton
+ Anodonta hildrethi White, 1893
Anodonta argillensis Russell
Anodonta arnoldi Weaver & Palmer
Anodonta athlios (Mayer)
Anodonta cornelliana Maury
Anodonta corpulenta
+ Anodonta corpulentoides Lea, 1868
Anodonta decurtata Conrad
Anodonta dejecta Lewis
+ Arnoldina dejecta Hannibal, 1912
Anodonta grandis
+ Anodonta grandioides Lea, 1868
Anodonta kettlemanensis Arnold
+ Anodonta decurtata Cooper, 1894
+ Anodonta nuttalliana Cooper, 1894
Anodonta macconnelli Russell
Anodonta malheurensis Henderson & Rodeck
Anodonta nitida Nomland
Anodonta nuttalliana lignitica J.G. Cooper
Anodonta parallela White
Anodonta propatoris White
Anodonta wahlametensis [sic] Lea
+ Anodonta wahlametensis Simpson, 1900
Antediplodon dewittensis Marshall
Antediplodon dockumensis (Simpson)
Antediplodon dumblei (Simpson)
Antediplodon graciliratus (Simpson)
Anthracomya arenacea (Dawson)
Anthracomya elongata (Dawson)
Anthracomya laevis (Dawson)
Anthracomya obtusa Dawson
+ Anthracomya obtenta Dawson, 1894
Anthracomya ovalis (Dawson)
Asthenodonta westoni Whiteaves
Bisulcus undulatus Hitchcock
Carbonicola angulata (Dawson)
Carbonicola bradorica (Dawson)
Diplodon borealis Pilsbry
Diplodon carolus-simpsoni Pilsbry
Diplodon gregoryi Reeside
Diplodon haroldi Reeside
Diplodon pennsylvanicus Pilsbry
Diplodon wanneri Pilsbry
Diplodon yorkensis Pilsbry
Elliptio silberlingi Russell
Eonaias reynosenica Marshall
Gonidea angulata (Lea)
Gonidea coalingensis coalingensis Arnold
Gonidea coalingensis cooperi Arnold
+ Margaritana subangulata Cooper, 1894
Gonidea hemphilli Hannibal
Lampsilis chadronensis Mansfield
Margaritifera herrei (Hannibal)
Margaritifera margaritifera falcata (Gould)
Margaritifera nebrascensis (Meek)
+ Margaritana nebraskensis Logan, 1897
Margaritifera onariotis (Mayer)
Murraia naiadiformis Russell
Mycetopoda diliculi [sic] Pilsbry
Naiadites carbonarius Dawson
Naiadites fragilis (Meek & Worthen)
Naiadites longus Dawson
Naiadites mytiloides Dawson
Naiadites ohiense Morningstar
Naiadites polita White
Naiadites triassicus Pilsbry
Naiadites wanneri Pilsbry
Pliconaias popenoei Marshall
Prisconaia ventricosa Conrad
Proparreysia barnumi (Pilsbry)
+ Unio browni Whitfield, 1903
Proparreysia holmesiana (White)
Proparreysia letsoni (Whitfield)
Proparreysia percorrugata (Whitfield)
Proparreysia pyramidatoides (Whitfield)
Proparreysia retusoides (Whitfield)
Proparreysia verrucosiformis (Whitfield)
Trisulcus laqueatus Hitchcock
Unio aesopiformis Whitfield
Unio albertensis Whiteaves
Unio aldrichi White
Unio alixus Dall
Unio amarillensis Stanton
Unio anodontoides
+ Unio preanodontoides Whitfield, 1885
Unio arizonensis Henderson
Unio baileyi Logan
Unio barbouri White
Unio baueri Stanton
Unio belliplicatus Meek
Unio biesopoides Whitfield
Unio biornatus Russell
Unio brachyopisthus White
+ Unio brachiopisthus White, 1877
Unio brimhallensis Stanton
Unio caloosaensis Dall
Unio cariosus
+ Unio carriosoides Lea, 1868
Unio clinopisthus White
Unio condoni White
Unio consuetus Whiteaves
Unio corbiculoides Whitfield
Unio couesi White
+ Unio petrinus White, 1876
Unio cretacollis Maury
Unio cristonensis Meek
Unio cryptorhynchus White
Unio cylindricoides Whitfield
Unio danai Meek & Hayden
+ Unio deweyanus Meek & Hayden, 1857
+ Unio danae Meek & Hayden, 1860
Unio dawsoni Russell
Unio didymictidis Cockerell
Unio douglassi Stanton
Unio dowlingi McLearn
Unio edwardsi Conrad
Unio emersoni Troxell
Unio endlichi White
Unio eomargaron Cockerell
Unio farri Stanton
Unio felchii White
Unio gallinensis Meek
Unio gardneri Stanton
Unio goniambonatus White
Unio gonionotus White
+ Unio gonibonatus Boyle, 1893
Unio grangeri Cockerell
Unio hamili McLearn
Unio haydeni Meek
Unio hubbardii Gabb
Unio humerosus
+ Unio humerosoides Lea, 1868
Unio iridoides White
Unio knightii Logan
Unio lapilloides White
Unio leanus Meek
Unio ligamentinus
+ Unio ligamentinoides Lea, 1868
Unio macropisthus White
Unio martini (d’Orb.) Eichwald
Unio mendax White
+ Unio vetustus White, 1877
Unio musius Dall
Unio nanaimoensis Whiteaves
Unio nasutus
+ Unio nasutoides Lea, 1868
Unio neomexicanus Stanton
Unio nucalis Meek & Hayden
Unio orthonotus Conrad
Unio patapscoensis Clark
Unio penultimus Gabb
Unio petrosus Morton
Unio postbiplicatus Whitfield
Unio primaevus White
Unio primigenius Conrad
Unio priscus abbreviatus Stanton & Hatcher
Unio priscus priscus Meek & Hayden
Unio proavitus White
Unio propheticus White
Unio pyramidellus Whitfield
Unio radiatus
+ Unio radiatoides Lea, 1868
Unio rectus
+ Unio rectoides Whitfield, 1885
Unio reesidei Stanton
Unio roanokensis
+ Unio roanokoides Lea, 1868
Unio sandrius Dall
Unio saxulum Morton
Unio senectus White
Unio senectus declivis (Russell)
Unio shoshonensis White
Unio sinopae Cockerell
Unio stantoni White
+ Unio danae White, 1877
+ Unio gibbosoides Whitfield, 1907
Unio stewardi White
Unio subplanatus Simpson
Unio subrotundus
+ Unio subrotundoides Lea, 1868
Unio subspatulatus Meek & Hayden
Unio subtrigonalis Whitfield
Unio supenawensis Stanton & Hatcher
Unio supragibbosus Whiteaves
Unio tellinoides (Hall)
Unio terrae-rubrae Meek
Unio terranus Morton
Unio thomasi Henderson
Unio torreyensis Hanna
Unio toxonotus White
Unio transpacifica Arnold & Hannibal
Unio tuchiasanus Russell
Unio tumulatus Morton
Unio tyrrelli Russell
Unio vetustus Meek
Unio wasatchensis Cockerell
Unio washakiensis Meek
Unio whitei Henderson
+ Unio rectoides White, 1886
Unio wilbrahamensis (Emerson)
Unio willistoni Logan
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