Unio burroughianus d’Orbigny, 1835
‘Lea’ of Authors.
d’Orbigny, 1835, Mag. Zool. 5(61-62): 34.
Sowerby, 1866, Conch. Icon. 16: pl. 32, sp. 169.
Bertoni, 1925, Rev. Soc. Cient. del Paraguay 2(1): 73.
(misidentified reference to Unio burroughianus Lea, 1834)

Unio parvus Conrad, 1836
‘Barnes’ of Authors.
Conrad, 1836, Monogr. Fam. Unionidae 1(2): 20, pl. 9, fig. 1.
Sowerby, 1866, Conch. Icon. 16: pl. 35, sp. 186.
(misidentified reference to Unio parvus Barnes, 1823)

Unio ziczac Hanley, 1843
‘Lea’ of Authors.
Hanley, 1843, Illustr. Descr. Cat. Rec. Bivalve Shells: 183.
Sowerby, 1866, Conch. Icon. 16: pl. 34, sp. 213.
(error for Unio zigzag Lea, 1829)

Unio hanleyanus Conrad, 1853
‘Lea’ of Authors.
Conrad, 1853, Proc. Acad. Nat. Sci. 6: 250.
Sowerby, 1866, Conch. Icon. 16: pl. 46, sp. 249.
B.H. Wright, 1888, Check List N. Amer. Unionidae etc.: [3].
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 759.
Simpson, 1914, Descr. Cat. Naiades: 780.
Frierson, 1927, Check List N. Amer. Naiades: 42, sp. 175.
Haas, 1969, Das Tierreich 88: 256.
Burch, 1975, Freshw. Unio. North Amer.: 13.
Turgeon et al., 1988, Am. Fisher. Soc. Spec. Publ. (16): 32.
Williams et al., 1993, Fisheries 18(9): 13.
Parmalee & Bogan, 1998, The Freshwater Mussels of Tennessee: 184.
Lydeard et al., 1999, Gulf Mex. Sci. 17(2): 129.
(error for Unio hanleyianus Lea, 1852)

Margaritana marginata Küster, 1862
‘Say’ of Authors.
Küster, 1862, Conchyl. Cab. 9(2): 297, pl. 99, fig. 3.
Sowerby, 1866, Conch. Icon. 16: pl. 51, sp. 267.
(reference to Alasmidonta marginata Say, 1818)

Unio pumilus Sowerby, 1866
‘Lea’ Sowerby, 1866, Conch. Icon. 16: pl. 36, sp. 198.
(reference to Unio pumilus Lea, 1838)
Type(s): BMNH_1965150, Loc._ ?

Unio auratus Sowerby, 1866
‘Swainson’ Sowerby, 1866, Conch. Icon. 16: pl. 45, sp. 245.
(reference to Unio auratus Philippi, 1847)
Type(s): FIGURED SPECIMEN BMNH_1968864, (South America).

Unio vonbuschea Sowerby, 1866
‘Lea MS’ Sowerby, 1866, Conch. Icon. 16: pl. 51, sp. 269 [as ‘Unio Von Buschea’].

Unio discoideus Sowerby, 1866
‘Lea’ Sowerby, 1866, Conch. Icon. 16: pl. 53, sp. 275; errata [changed to ‘U. laevissimus Lea’].
(misidentified reference to Symphynota discoidea Lea, 1834)

Unio nyassae Sowerby, 1866
Sowerby, 1866, Conch. Icon. 16: pl. 41, sp. 224, figs. 224a-b [changed in errata to ‘nyssensis’].

Unio plicatus Sowerby, 1866
“Say” Sowerby, 1866, Conch. Icon. 16: pl. 54, sp. 280.
(reference to Dipsas plicatus Leach, 1814)

Unio haslehurstianus Sowerby, 1866
Sowerby, 1866, Conch. Icon. 16: pl. 35, sp. 188.
(error for Unio hazlehurstianus Lea, 1858)

Unio camelopardalis Sowerby, 1866
‘Lea’ of Authors.
Sowerby, 1866, Conch. Icon. 16: pl. 42, sp. 233, fig. 233a.
Haas, 1969, Das Tierreich 88: 450.
Watters, 2018, Visaya, Suppl. (10): 29.
(error for Unio camelopardilis Lea, 1860)

Unio regularis Sowerby, 1866
‘Lea’ Sowerby, 1866, Conch. Icon. 16: pl. 34, sp. 181.
(misidentified reference to Unio regularis Lea, 1841)

Unio subrotundus Sowerby, 1866
‘Lea’ Sowerby, 1866, Conch. Icon. 16: pl. 37, sp. 201.
(misidentified reference to Unio subrotundus Lea, 1831)

Unio cambojensis Sowerby, 1866
Sowerby, 1866, Conch. Icon. 16: pl. 42, sp. 231.
Type(s): LECTOTYPE BMNH_1965148, Camboja.

Unio poulsoni Sowerby, 1866
‘Conrad’ Sowerby, 1866, Conch. Icon. 16: pl. 51, sp. 270.
(reference to Unio poulsoni Conrad, 1834)

Unio valentianus Sowerby, 1866
Sowerby, 1866, Conch. Icon. 16: pl. 41, sp. 225.

Unio texasianus Sowerby, 1866
‘Lea’ Sowerby, 1866, Conch. Icon. 16: pl. 40, sp. 218.
(error for Unio texasiensis Lea, 1857)

Unio dolosus Sowerby, 1866
‘Lea’ Sowerby, 1866, Conch. Icon. 16: pl. 41, sp. 228.
(reference to Unio dolosus Lea, 1860)

Unio vanuxemensis Sowerby, 1866
‘Lea’ Sowerby, 1866, Conch. Icon. 16: pl. 39, sp. 216.
(misidentified reference to Unio vanuxemensis Lea, 1838)

Unio indicus Sowerby, 1866
Sowerby, 1866, Conch. Icon. 16: pl. 40, sp. 222.
Type(s): HOLOTYPE BMNH_1965195, India.

Unio gundlachi Sowerby, 1866
‘Dunker’ Sowerby, 1866, Conch. Icon. 16: pl. 46, sp. 248.
(misidentified reference to Unio gundlachi Dunker, 1858)

Unio troostensis Sowerby, 1866
‘Lea’ Sowerby, 1866, Conch. Icon. 16: pl. 38, sp. 210.
(homonym of Unio troostensis Lea, 1834)

Unio perovalis Sowerby, 1866
‘Conrad’ Sowerby, 1866, Conch. Icon. 16: pl. 38, sp. 209.
(misidentified reference to Unio perovalis Conrad, 1834)

Unio hydeanus Sowerby, 1866
‘Lea’ Sowerby, 1866, Conch. Icon. 16: pl. 37, sp. 203.
(error for Unio hydianus Lea, 1838)

Unio swinhoei Sowerby, 1866
‘Reeve’ Sowerby, 1866, Conch. Icon. 16: pl. 42, sp. 232.
‘H. Adams’ Sowerby, 1870, Conch. Icon. 17: pl. 27, sp. 108.
(reference to Unio swinhoei H. Adams, 1866)
Type(s): HOLOTYPE BMNH_1968653, Formosa.

Unio donaciformis Sowerby, 1866
‘Lea’ Sowerby, 1866, Conch. Icon. 16: pl. 39, sp. 214.
(misidentified reference to Unio donaciformis Lea, 1828)

Unio laoensis Sowerby, 1866
‘Lea’ of Authors.
Sowerby, 1866, Conch. Icon. 16: pl. 47, sp. 256.
Haas, 1910, Conch. Cab. 9 (pt. 2, h. 42): pl. 12, caption.
(error for Unio laosensis Lea, 1863)

Unio solsiana Sowerby, 1866
‘d’Orbigny’ Sowerby, 1866, Conch. Icon. 16: pl. 51, sp. 268.
(error for Unio solisiana d’Orbigny, 1835)

Unio argenteus Sowerby, 1866
‘Lea’ Sowerby, 1866, Conch. Icon. 16: pl. 37, sp. 204.
(misidentified reference to Unio argenteus Lea, 1841)

Unio ahaeneus Sowerby, 1866
Sowerby, 1866, Conch. Icon. 16: pl. 36, sp. 194 [as ‘ahæneus’].
(error for Unio aheneus Lea, 1843)

Unio succisus Sowerby, 1866
‘Lea’ Sowerby, 1866, Conch. Icon. 16: pl. 33, sp. 174.
(reference to Unio succissus Lea, 1852; error for Unio succissus Lea, 1852)

Unio ventricosus Sowerby, 1866
‘Barnes’ Sowerby, 1866, Conch. Icon. 16: pl. 43, sp. 235.
(reference to Unio ventricosus Barnes, 1823)

Unio ornatus Sowerby, 1866
‘Conrad’ Sowerby, 1866, Conch. Icon. 16: pl. 31, sp. 162.
(reference to Unio ovatus var. ornatus Conrad, 1835)

Unio semiquadrata Sowerby, 1866
Sowerby, 1866, Conch. Icon. 16: pl. 48, sp. 258.
Type(s): SYNTYPES BMNH_1968658, Lao Mountains, Camboja.

Parreysia robsoni Frierson, 1927
‘Lea’ Sowerby, 1866, Conch. Icon. 16: pl. 36, sp. 198 [as ‘Unio pumilus’].
Frierson, 1927, Check List N. Amer. Naiades: 45.
(new name for Unio pumilus Sowerby, 1866)
Type(s): HOLOTYPE BMNH_1965150, Loc._ ?

Unio acutissimus Lea, 1831

Unio ahæneus [sic] Lea, 1841

Unio alatus Say, 1817

Unio anaticulus Lea, 1861

Unio arcula (Lea, 1838)

Unio argenteus Lea, 1841

Unio auratus ‘Swainson’ Sowerby, 1866

Unio barnesianus Lea, 1838

Unio batava Lamarck

Unio bialatus (Lea, 1829)

Unio bigbyensis Lea, 1841

Unio blandingianus Lea, 1834

Unio buckleyi Lea, 1841

Unio burroughianus Lea, 1834

Unio burtoni Woodward, 1859

Unio caeruleus Lea, 1831

Unio caffer Krauss, 1848
+ Unio africanus Lea, 1856

Unio cambojensis Sowerby, 1866

Unio camelopardalis [sic] Lea, 1860

Unio capax Green, 1832

Unio coarctatus Lamarck, 1819

Unio collinus Conrad, 1837

Unio complanatus (Barnes, 1823)

Unio confertus Lea, 1834

Unio conradicus Lea, 1834

Unio crassus Say
+ Unio ligamentina Lamarck, 1819
+ Unio ellipticus Barnes, 1823
+ Mya gravis Wood, 1828

Unio crispisulcatus Benson, 1862

Unio cumberlandicus Lea, 1838

Unio cumingii Lea, 1852

Unio delphinulus Morelet, 1849

Unio delphinus Gruner, 1841

Unio discoidea (Lea, 1834)
+ Unio tenuis Griffith & Pidgeon, 1833
+ Symphynota magnifica Lea, 1834

Unio discrepans Lea, 1860

Unio dolabelloides Lea, 1840

Unio dolosus Lea, 1860

Unio donaciformis Lea, 1828

Unio douglasiae Gray in Griffith & Pidgeon, 1834
+ Unio murchisonianus Lea, 1834

Unio exiguus Lea, 1840

Unio fabalis Lea, 1831

Unio fibuloides Lea, 1859

Unio foremanianus Lea, 1842

Unio gibber Lea, 1838

Unio glans Lea, 1831

Unio gracilis (Barnes, 1823)

Unio gravidus Lea, 1856

Unio greenii Conrad, 1834

Unio gundlachi Dunker, 1858
+ Unio persulcatus Lea, 1859

Unio hainesianus Lea, 1856

Unio hanleyanus [sic] Lea, 1852

Unio haslehurstianus [sic] Lea, 1858

Unio hembeli Conrad, 1838

Unio heterodon Lea, 1829

Unio hildrethianus Lea, 1834

Unio housei Lea, 1856

Unio hydeanus [sic] Lea, 1838

Unio indicus Sowerby, 1866

Unio inflatus (Lea, 1831)

Unio infucatus Conrad, 1834

Unio involuta Benson in Hanley, 1856

Unio laevissimus (Lea, 1829)

Unio lamellatus Lea, 1838

Unio lanceolatus Lea, 1828

Unio laoensis ‘Lea MS’

Unio lecontianus Lea, 1838

Unio lens Lea, 1831

Unio leptodon Rafinesque, 1820

Unio lienosus Conrad, 1834

Unio lindsleyi Lea, 1860

Unio marginatus Lea
+ Unio varicosa Lamarck, 1819
+ Unio rugulosus Wood, 1828

Unio medellinus Lea, 1838

Unio micans Lea, 1857

Unio muhlfeldianus Lea, 1838

Unio myersianus Lea, 1856

Unio negatus Lea, 1861

Unio nicklinianus Lea, 1834

Unio novi-eboraci Lea, 1838

Unio nyassae Sowerby, 1866

Unio obesus Lea, 1831

Unio olivarius Lea, 1831

Unio orbiculatus Hildreth, 1828
+ Unio abruptus Say, 1831
+ Unio crassus Conrad, 1836

Unio ornatus Conrad, 1835

Unio ovatus Say, 1817

Unio paraguayana (d’Orbigny, 1835)

Unio paranensis Lea, 1834
+ Unio solisiana d’Orbigny, 1835

Unio parvus Barnes, 1823

Unio pellucidus Lea, 1845

Unio percoarctatus Lea, MS

Unio perovalis Conrad, 1834

Unio plicatus Say [sic]

Unio plicatus Say
+ Unio peruviana Lamarck, 1819
+ Unio rariplicata Lamarck, 1819
+ Unio undulatus Barnes, 1823
+ Unio dombeyana Humboldt & Bonpland, 1827
+ Unio multiplicatus Lea, 1831

Unio politus Say, 1834

Unio postellii Lea, 1858

Unio poulsoni Conrad, 1834
+ Unio purpurata Lamarck, 1819
+ Unio ater Lea, 1829
+ Unio lugubris Say, 1832

Unio pumilus Lea, 1838

Unio regularis Lea, 1841

Unio schwerzenbachi Rossmassler

Unio scobina ‘Benson’ Hanley, 1856
+ Unio fluctiger Lea, 1859

Unio semiquadrata Sowerby, 1866

Unio shuttleworthi Lea, 1856

Unio soleniformis Lea, 1831

Unio spinosus Lea, 1836

Unio splendidus Lea, 1838

Unio stramineus Conrad, 1834

Unio stuarti Adams & Angas, 1863

Unio subovatus Lea, 1831

Unio subplanum Conrad, 1837

Unio subrotundus Lea, 1831

Unio succisus [sic] Lea, 1852

Unio swinhoei ‘Reeve’ Sowerby, 1866

Unio tenuissimus (Lea, 1829)
+ Anodon purpurascens Swainson, 1823
+ Unio velum Say, 1829

Unio texasianus [sic] Lea, 1857

Unio tortivus Lea, 1840

Unio troostensis Lea, 1834
+ Unio trabalis Conrad, 1834

Unio umbrans Lea, 1857

Unio umbrosus Lea, 1856

Unio valentinus Sowerby, 1866

Unio vanuxemensis Lea, 1838

Unio ventricosus Barnes, 1823

Unio viridis Conrad, 1835
+ Unio tappanianus Lea, 1838

Unio vonbuschea ‘Lea MS’

Unio zeiglerianus Lea, 1838

Unio zic-zac [sic] Lea, 1829