Alasmidonta schomburgki Sowerby, 1868
‘Hanley MS’ Sowerby, 1868. Conch. Icon. 16: pl. 86, sp. 458.
(intro'd as syn of Unio (Monocondylea) reticulata Moricand, 1858)

Lampsilis (s.s.) sowerbyana Frierson, 1927
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 63, sp. 316 [as ‘Unio pictus’].
Frierson, 1927. Check List N. Amer. Naiades: 69, sp. 308.

Margaritana curreyana Lea, 1842
‘Lea’ of Authors.
Lea, 1842. Trans. Amer. Phil. Soc. 8 [O. 3]: pl. 18, fig. 40.
Agassiz, 1852. Arch. Naturg. 18(1): 47.
Lea, 1852. Synopsis Fam. Naiades: 42.
Conrad, 1853. Proc. Acad. Nat. Sci. 6: 263.
Adams & Adams, 1857. Gen. Rec. Moll. 2(31-32): 499.
Sowerby, 1868. Conch. Icon. 16: pl. 63, sp. 319.
Lea, 1870. Synopsis Fam. Naiades: 68.
B.H. Wright, 1888. Check List N. Amer. Unionidae etc.: [6].
Simpson, 1900. Proc. U.S. Nat. Mus. 22: 661.
Simpson, 1914. Descr. Cat. Naiades: 474.
Frierson, 1927. Check List N. Amer. Naiades: 21.
Haas, 1969. Das Tierreich 88: 395.
(error for Margaritana curreyiana Lea, 1840)

Physunio friersoni Simpson, 1914
‘Benson, in Hanley’ Sowerby, 1868. Conch. Icon. 16: pl. 72, sp. 368 [as ‘Unio velaris’].
Simpson, 1914. Descr. Cat. Naiades: 1068.
(new name for Unio velaris Sowerby, 1868)

Psoronaias plexoideus Frierson, 1927
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 64, sp. 324; errata [as ‘Unio rusticus’].
Frierson, 1927. Check List N. Amer. Naiades: 63, sp. 273.
(new name for Unio rusticus Sowerby, 1868)
Type(s): TYPE LOST BMNH_XXX, Siam.

Unio affinis Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 63, sp. 318.
(misidentified reference to Unio affinis Lea, 1852)

Unio affinis Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 61, sp. 307.
(misidentified reference to Unio affinis Lea, 1852)

Unio asperatus Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 85, sp. 450.
(reference to Unio asperatus Lea, 1861)

Unio astieranus Sowerby, 1868
‘Dupuy’ of Authors.
Sowerby, 1868. Conch. Icon. 16: pl. 86, sp. 461.
Paetel, 1890. Cat. Conch.-Samml. 3: 145.
(error for Unio astierianus Dupuy, 1849)

Unio atrocostatus Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 77, sp. 404.
(misidentified reference to Unio atrocostatus Lea, 1845)

Unio calamitarum Sowerby, 1868
‘Morelet’ Sowerby, 1868. Conch. Icon. 16: pl. 74, sp. 385.
(reference to Unio calamitarum Morelet, 1849)

Unio capigliolo Küster, 1855
‘Payraudeau’ of Authors.
Küster, 1855. Conchyl. Cab. 9(2): 125, pl. 34, figs. 5-6. [in part]
Sowerby, 1868. Conch. Icon. 16: pl. 75, sp. 392.
(misidentified reference to Unio capigliolo Payraudeau, 1826)

Unio charruanus Sowerby, 1868
‘d’Orbigny’ Sowerby, 1868. Conch. Icon. 16: pl. 93, sp. 505.
(misidentified reference to Unio charruana d’Orbigny, 1835)

Unio churchilleanus Sowerby, 1868
‘Bourguignat’ Sowerby, 1868. Conch. Icon. 16: pl. 96, sp. 525.
(error for Unio churchillianus Bourguignat, 1857)

Unio cinnamominus Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 83, sp. 436.
(error for Unio cinnamomicus Lea, 1861)

Unio clairbornensis Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 70, sp. 357.
(error for Unio claibornensis Lea, 1838)

Unio connasaughensis Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 88, sp. 474.
(error for Margaritana connasaugaensis Lea, 1858)

Unio contortus Sowerby, 1868
‘Baird & Adams’ Sowerby, 1868. Conch. Icon. 16: errata.
(error for Unio (Lampsilis) subtortus Baird & Adams, 1867)

Unio corrianus Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 77, sp. 401.
(misidentified reference to Unio corrianus Lea, 1834)

Unio crassidens Sowerby, 1868
‘Lamarck’ Sowerby, 1868. Conch. Icon. 16: pl. 62, sp. 312.
(reference to Unio crassidens Lamarck, 1819)

Unio crassus Sowerby, 1868
‘Say’ Sowerby, 1868. Conch. Icon. 16: pl. 95, sp. 520.
(misidentified reference to Unio crassus Say, 1817)

Unio cuprinus Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 66, sp. 336.
(reference to Unio cuprinus Lea, 1831)

Unio digitiformis Sowerby, 1868
Sowerby, 1868. Conch. Icon. 16: pl. 65, sp. 333.
Type(s): HOLOTYPE BMNH_1965199, India.

Unio discus Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 62, sp. 310; errata.
(misidentified reference to Unio discus Lea, 1838)

Unio dorbignianus Sowerby, 1868
‘Hupé & Deville’ Sowerby, 1868. Conch. Icon. 16: pl. 96, sp. 523 [as ‘d’orbignianus’].
(error for Unio orbignyi Deville & Hupé, 1850)

Unio downei Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 68, sp. 350.
(error for Unio downiei Lea, 1858)

Unio ellipticus Küster, 1861
‘Spix & Wagner’ of Authors.
Küster, 1861. Conchyl. Cab. 9(2): 238, pl. 80, fig. 2.
‘Spix’ Sowerby, 1868. Conch. Icon. 16: pl. 74, sp. 382.
(reference to Diplodon ellipticum Wagner, 1827)

Unio holstonianus Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 76, sp. 398.
(error for Margaritana holstonia Lea, 1838)

Unio hopetownensis Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 68, sp. 349.
(error for Unio hopetonensis Lea, 1838)

Unio jejunus Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 68, sp. 347; errata [changed to ‘depressus of D’Orbigny’].
(reference to Unio jejunus Lea, 1838)

Unio lamellatus Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 94, sp. 511.
(misidentified reference to Unio lamellatus Lea, 1838)

Unio latissimus Sowerby, 1868
Sowerby, 1868. Conch. Icon. 16: pl. 66, sp. 337.
(homonym of Unio (Eurynia) latissima Rafinesque, 1820)

Unio lazarus Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 68, sp. 348.
(misidentified reference to Unio lazarus Lea, 1852)

Unio litoralis Menke, 1828
‘Lamarck’ of Authors.
Menke, 1828. Syn. Method. Moll.: 64.
Menke, 1830. Syn. Method. Moll.: 107.
Lea, 1836. Synopsis Fam. Naiades: 32.
Lea, 1838. Synopsis Fam. Naiades: 22.
Swainson, 1840. Treat. Malacol.: 282.
Lea, 1852. Synopsis Fam. Naiades: 34.
Rossmässler, 1854. Icon. Land- und Süssw.-Moll. 3 (1-2): 37.
Küster, 1855. Conchyl. Cab. 9(2): 128.
Reeve, 1865. Conch. Icon. 16: pl. 22, sp. 98.
Sowerby, 1868. Conch. Icon. 16: pl. 86, sp. 461.
Lea, 1870. Synopsis Fam. Naiades: 54.
Woodward, 1871. Man. Moll: 433.
Westerlund, 1890. Fauna Paläarct. Binnenconch. 2(7): 52.
(error for Unio littoralis Cuvier, 1798)

Unio luteolus Sowerby, 1868
Sowerby, 1868. Conch. Icon. 16: pl. 61, sp. 306; errata [originally as U. multiradiata].
Krebs et al., 2003. J. Gr. Lakes Res. 29(2): 311.
Krebs, 2004. Molec. Ecol. 13: 1702.
(misidentified reference to Unio luteola Lamarck, 1819)

Unio lutulentus Sowerby, 1868
‘Gould’ Sowerby, 1868. Conch. Icon. 16: pl. 74, sp. 386.
(reference to Unio lutulentus Gould, 1850)

Unio multiradiatus Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 61, sp. 306; errata [changed to ‘U. luteolus, var.’].
(error for Unio luteola Lamarck, 1819; misidentified reference to Unio multiradiatus Lea, 1829)

Unio neglectus Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 65, sp. 329.
(misidentified reference to Unio neglectus Lea, 1843)

Unio niloticus Sowerby, 1868
‘Caillaud’ [sic] Sowerby, 1868. Conch. Icon. 16: pl. 73, sp. 374.
(misidentified reference to Unio niloticus Cailliaud, 1827)

Unio nyassensis Sowerby, 1868
‘Lea’ of Authors.
Sowerby, 1868. Conch. Icon. 16: Errata.
Lea, 1870. Synopsis Fam. Naiades: 30.
(error for Unio nyassaensis Lea, 1864)

Unio oriens Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 63, sp. 314.
(misidentified reference to Unio oriens Lea, 1831)

Unio parma Sowerby, 1868
‘Benson’ Sowerby, 1868. Conch. Icon. 16: pl. 95, sp. 514.
Type(s): HOLOTYPE (MONOTYPY) BMNH_88-12-4-1669, Tenasserim, Burma.

Unio pictus Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 63, sp. 316.
(misidentified reference to Unio pictus Lea, 1834)

Unio platyrrhinchoideus Sowerby, 1868
‘Dupuy’ Sowerby, 1868. Conch. Icon. 16: pl. 70, sp. 358.
(error for Unio platyrinchoideus Dupuy, 1849)

Unio prevostianus Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 63, sp. 315.
(reference to Unio prevostianus Lea, 1852)

Unio rectilinearis Sowerby, 1868
Sowerby, 1868. Conch. Icon. 16: pl. 65, sp. 332.
Type(s): HOLOTYPE BMNH_74-12-11-4, Riv. Columbia.

Unio regularis Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 68, sp. 351.
(misidentified reference to Unio regularis Lea, 1841)

Unio roanoakensis Hanley, 1843
‘Lea’ of Authors.
Hanley, 1843. Illustr. Descr. Cat. Rec. Bivalve Shells: 199.
Sowerby, 1868. Conch. Icon. 16: pl. 67, sp. 341.
(error for Unio roanokensis Lea, 1838)

Unio rubellianus Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 90, sp. 490.
(error for Unio rubellinus Lea, 1857)

Unio rusticus Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 64, sp. 324; errata.
(homonym of Unio rusticus Lea, 1856; renamed Psoronaias plexoideus Frierson, 1927)
Type(s): TYPE LOST BMNH_XXX, Siam.

Unio sagrinatus Sowerby, 1868
Sowerby, 1868. Conch. Icon. 16: pl. 67, sp. 345; errata [changed to ‘U. newcombianus Lea’].

Unio scutum Sowerby, 1868
‘Benson’ Sowerby, 1868. Conch. Icon. 16: pl. 94, sp. 510.
Type(s): HOLOTYPE (MONOTYPY) BMNH_1907-10-28-239, Tenasserim.

Unio shurtefflerianus Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 95, sp. 515.
(error for Unio shurtleffianus Lea, 1856)

Unio siculus Sowerby, 1868
‘Swainson’ Sowerby, 1868. Conch. Icon. 16: pl. 71, sp. 364.
(misidentified reference to Potomida sicula Swainson, 1840)

Unio spatulatus Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 65, sp. 328.
(misidentified reference to Unio spatulatus Lea, 1845)

Unio spillmannii Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 82, pl. 435.
(error for Margaritana spillmanii Lea, 1858)

Unio striatus Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 78, sp. 407.
(misidentified reference to Unio striatus Lea, 1840)

Unio subangulatus Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 65, sp. 327.
(misidentified reference to Unio subangulatus Lea, 1840)

Unio subovatus Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 85, sp. 456.
(reference to Unio subovatus Lea, 1831)

Unio swainsoni Sowerby, 1868
‘Hanley’ Sowerby, 1868. Conch. Icon. 16: pl. 76, sp. 396.
(new name for Uniopsis radiata Swainson, 1840; new name for Uniopsis mytiloides Swainson, 1840)
Type(s): HOLOTYPE BMNH_1900-3-19-21, Hab._?

Unio taitanus Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 67, sp. 338.
(misidentified reference to Unio taitianus Lea, 1834; error for Unio taitianus Lea, 1834)

Unio tortuosus Sowerby, 1868
Sowerby, 1868. Conch. Icon. 16: pl. 65, sp. 330.
(homonym of Unio tortuosus Lea, 1865)
Type(s): HOLOTYPE (MONOTYPY) BMNH_74-12-11-25, Maryland.

Unio trigonus Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 64, sp. 322; errata.
(reference to Unio trigonus Lea, 1831)

Unio trinacris Lea, 1862
‘Lea’ of Authors.
Lea, 1862. Jour. Acad. Nat. Sci. 5 [O. 8]: pl. 12, fig. 235.
Sowerby, 1868. Conch. Icon. 16: pl. 81, sp. 428.
(error for Unio trinacrus Lea, 1861)

Unio trirostris Sowerby, 1868
‘Benson’ Sowerby, 1868. Conch. Icon. 16: pl. 65, sp. 331; errata.
(homonym of Unio trirostris Musgrave, 1863)

Unio troostensis Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 79, sp. 415.
(misidentified reference to Unio troostensis Lea, 1834)

Unio vaughanianus Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 61, sp. 308.
(misidentified reference to Unio vaughanianus Lea, 1838)

Unio velaris Sowerby, 1868
‘Benson, in Hanley’ Sowerby, 1868. Conch. Icon. 16: pl. 72, sp. 368.
(misidentified reference to Unio velaris Hanley, 1856)

Unio venustus Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 64, sp. 326.
(misidentified reference to Unio venustus Lea, 1838)

Unio verrauianus Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 69, sp. 352.
(error for Unio verreauianus Lea, 1856)

Unio verrucosus Say, 1834
‘Rafinesque’ of Authors.
‘Rafinesque’ Say, 1834. Amer. Conch. 6: ??.
‘Rafinesque’ Sowerby, 1868. Conch. Icon. 16: pl. 1, sp. 4.
(reference to Obliquaria (Ellipsaria) verrucosa Rafinesque, 1820)

Unio vondembuschii Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 95, sp. 518.
(error for Margaritana vondenbuschiana Lea, 1840; misidentified reference to Margaritana vondenbuschiana Lea, 1840)

Unio wynegungensis Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 67, sp. 339.
(error for Unio wynegungaensis Lea, 1860)

Unio jayensis var. aequillus Sowerby, 1868
‘Lea’ Sowerby, 1868. Conch. Icon. 16: pl. 67, sp. 343 [as ‘æquillus’].
(error for Unio aquilus Lea, 1857)