Unio siliquoides Küster, 1848
‘Barnes’ Küster, 1848, Conchyl. Cab. 9(2): 30.
(error for Unio siliquoideus Barnes, 1823)

Unio gibbosus Küster, 1848
‘Rafinesque’ Küster, 1848, Conchyl. Cab. 9(2): 40.
(error for Obliquaria (Scalenaria) scalenia Rafinesque, 1820)

Unio alatus Say
+ Metaptera megaptera Rafinesque, 1820

Unio blandingianus Lea

Unio capax Green
+ Symphynota globosa Lea, 1834

Unio cariosus Say
+ Unio ovatus Valenciennes, 1827

Unio clava Lamarck
+ Obliquaria (Scalenaria) scalenia Rafinesque, 1820
+ Unio modioliformis Lea, 1834
+ Unio clavus Conrad, 1835

Unio delphinus Gruner

Unio dilatatus Rafinesque
+ Unio nasuta Lamarck, 1819
+ Unio gibbosus Barnes, 1823
+ Unio dilatatus Say, 1834

Unio fasciatus Rafinesque
+ Unio carinatus Barnes, 1823
+ Unio fasciatus Conrad, 1835

Unio fasciolus Rafinesque
+ Unio multiradiatus Lea, 1829
+ Unio fasciolus Say, 1834

Unio fragilis Rafinesque
+ Unio fragilis Swainson, 1823
+ Unio gracilis Barnes, 1823

Unio gibbosus Rafinesque
+ Unio perplexus Lea, 1831
+ Unio gibbosus Ferussac, 1835

Unio glans Lea
+ Unio glans Conrad, 1836

Unio inflatus Lea
+ Unio alabamensis Conrad, 1834

Unio ligamentinus Lamarck
+ Unio crassus Say, 1817
+ Unio crassidens Lamarck, 1819
+ Unio ellipticus Barnes, 1823
+ Unio abruptus Say, 1831
+ Toxolasma cyclips Rafinesque, 1831
+ Unio crassus Conrad, 1836

Unio masoni Conrad

Unio niger Rafinesque
+ Unio crassidens Lamarck, 1819
+ Unio cuneatus Barnes, 1823
+ Unio niger Conrad, 1836

Unio ovatus Say
+ Unio ovata Lamarck, 1819
+ Unio ovata Lamarck, 1819

Unio parvus Barnes
+ Unio parvus Conrad, 1836

Unio pectorosus Conrad
+ Unio perdix Lea, 1834

Unio radiatus Lamarck
+ Unio virginiana Lamarck, 1819
+ Unio radiatus Barnes, 1823
+ Unio oblongatus Wood, 1828

Unio rectus Lamarck
+ Unio praelongus Barnes, 1823

Unio siliquoides [sic] Barnes
+ Unio inflatus Barnes, 1823