Alasmodonta abducta Lea, 1836
‘Say’ Lea, 1836. Synopsis Fam. Naiades: 44.
‘Say’ Lea, 1852. Synopsis Fam. Naiades: 42.
(intro'd as syn of Alasmodonta rugosa Barnes, 1823)

Alasmodonta incurva Lea, 1836
‘Fer.’ Lea, 1836. Synopsis Fam. Naiades: 46. [nomen nudum]
‘Fer.’ Lea, 1838. Synopsis Fam. Naiades: 28. [nomen nudum]
‘Fer.’ Lea, 1852. Synopsis Fam. Naiades: 44. [nomen nudum]
‘Fer.’ Lea, 1870. Synopsis Fam. Naiades: 70. [nomen nudum]

Alasmodonta truncata Lea, 1836
‘Say, in lit.’ of Authors.
Lea, 1836. Synopsis Fam. Naiades: 44.
Lea, 1838. Synopsis Fam. Naiades: 27.
Agassiz, 1852. Arch. Naturg. 18(1): 46.
Conrad, 1853. Proc. Acad. Nat. Sci. 6: 262.
(intro'd as syn of Alasmidonta marginata Say, 1818)

Anodon trapezius Lea, 1836
‘Spix & Wagner’ of Authors.
Lea, 1836. Synopsis Fam. Naiades: 53.
Hanley, 1843. Illustr. Descr. Cat. Rec. Bivalve Shells: 221.
Lucena, 1951. Pap. Avuls. Dept. Zool. 10(3): 98.
(error for Anodon trapezeus Wagner, 1827)

Anodonta buchanensis Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 54. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 47, pl. 14, fig. 43.
Type(s): HOLOTYPE USNM_86719, Buck Creek.

Anodonta chinensis Lea, 1836
‘Fer.’ Lea, 1836. Synopsis Fam. Naiades: 54. [nomen nudum]
Lea, 1838. Synopsis Fam. Naiades: 32. [nomen nudum]
‘Fer.’ Lea, 1852. Synopsis Fam. Naiades: 53. [nomen nudum]

Anodonta curvata Lea, 1836
‘Ferussac’ of Authors.
Lea, 1836. Synopsis Fam. Naiades: 54. [nomen nudum]
Lea, 1838. Synopsis Fam. Naiades: 32. [nomen nudum]
Jay, 1839. Cat. Rec. Shells: 27. [nomen nudum]
Lea, 1852. Synopsis Fam. Naiades: 53. [nomen nudum]

Anodonta cylindracea Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 54. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 45, pl. 13, fig. 40.
Type(s): LECTOTYPE USNM_86712 (by Cummings et al., 2025: 365), Riv. Medellin, Vera Cruz, Mexico.

Anodonta decora Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 52. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 64, pl. 20, fig. 63.
Type(s): HOLOTYPE USNM_86633, canal, near Cincinnati, Ohio.

Anodonta exilis Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: addenda. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 81, pl. 22, fig. 68.
Type(s): FIGURED SYNTYPE USNM_86726, Java ? .

Anodonta folium Lea, 1836
‘Fer.’ Lea, 1836. Synopsis Fam. Naiades: 54. [nomen nudum]
‘Fer.’ Lea, 1838. Synopsis Fam. Naiades: 32. [nomen nudum]
‘Fer.’ Lea, 1852. Synopsis Fam. Naiades: 53. [nomen nudum]

Anodonta gigantea Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 52. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 1 [1], pl. 1, fig. 1.
Type(s): HOLOTYPE (MONOTYPY) USNM_86659, Port Gibson, Mississippi.

Anodonta globosa Lea, 1841
Lea, 1836. Synopsis Fam. Naiades: 52. [nomen nudum]
Lea, 1841. Proc. Amer. Phil. Soc. 2: 31.
Lea, 1842. Trans. Amer. Phil. Soc. 8 [O. 3]: 241 [79], pl. 24, fig. 56.
Type(s): HOLOTYPE USNM_86701, Concha Lake, 20 leagues S Vera Cruz near Tlocatalpan, Mexico.

Anodonta imbecilis Lea, 1836
‘Say’ of Authors.
Lea, 1836. Synopsis Fam. Naiades: 54.
Conrad, 1853. Proc. Acad. Nat. Sci. 6: 264.
Adams & Adams, 1857. Gen. Rec. Moll. 2(31-32): 502.
Say, 1858. [in] Binney, Compl. Writings T. Say: 140.
Lapham, 1860. Proc. Acad. Nat. Sci. 12: 156.
B.H. Wright, 1888. Check List N. Amer. Unionidae etc.: [7].
Pilsbry & Rhoads, 1896. Proc. Acad. Nat. Sci. 48: 506.
Clench & Turner, 1956. Bull. Fla. State Mus. 1: 187.
Murray & Leonard, 1962. Handbk. Unionid Muss. Kansas: 95.
R.I. Johnson, 1970. Bull. MCZ 140(6): 362.
Heard, 1975. Malacologia 15(1): 84.
Kat, 1983. Malacologia 23(2): 362.
Hoeh, 1990. Malac. Review 23: 63.
Lydeard et al., 1996. Philos. Trans. Roy. Soc. London (B, Biol. Sci.) 351: 1595.
Rosenberg et al., 1997. J. Moll. Studies 63: 303.
Adamkewicz et al., 1997. MBE 14(6): 622.
(error for Anodonta imbecillis Say, 1829)

Anodonta inflata Lea, 1836
‘Major Le Conte’s Cabinet’ Lea, 1836. Synopsis Fam. Naiades: 52. [nomen nudum]
‘Major Le Conte’s Cabinet’ Lea, 1838. Synopsis Fam. Naiades: 31. [nomen nudum]
‘Major Le Conte’s Cabinet’ Lea, 1852. Synopsis Fam. Naiades: 51. [nomen nudum]

Anodonta newtonensis Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: addenda. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 79 [as ‘newtoniensis’], pl. 21, fig. 66.
Type(s): LECTOTYPE USNM_86561 (by R.I. Johnson, 1946: 112), Schuylkill, near Phila. Pa.

Anodonta nuttalliana Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: addenda. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 77, fig. 20, fig. 62.
Type(s): HOLOTYPE USNM_86391, Willamette R., Oregon.

Anodonta oregonensis Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: addenda. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 80, pl. 21, fig. 67.
Type(s): HOLOTYPE USNM_86432, Wahlamat R., Oregon.

Anodonta ovata Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 52. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 2, pl. 2, fig. 2.
(homonym of Unio ovata Stark, 1828)
Type(s): HOLOTYPE USNM_86615, Marietta, Ohio.

Anodonta pavonia Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: addenda. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 78, pl. 21, fig. 65.
Type(s): LECTOTYPE USNM_86514, Little Beaver Cr., Ohio.

Anodonta pennsylvanica Stark, 1828
‘Lamarck’ of Authors.
Stark, 1828. Elements Nat. Hist. 2: 89.
Lea, 1836. Synopsis Fam. Naiades: 50.
Lea, 1838. Synopsis Fam. Naiades: 30.
Lea, 1852. Synopsis Fam. Naiades: 49.
Conrad, 1853. Proc. Acad. Nat. Sci. 6: 263.
Sowerby, 1867. Conch. Icon. 17: pl. 11, sp. 30.
Lea, 1870. Synopsis Fam. Naiades: 79.
Simpson, 1900. Proc. U.S. Nat. Mus. 22: 618.
Ortmann & Walker, 1922. Occ. Pap. Mus. Zool. Univ. Mich. (112): 40.
Frierson, 1927. Check List N. Amer. Naiades: 22 [as ‘Strophitus undulatus-pennsylvanicus’].
Haas, 1969. Das Tierreich 88: 373 [as ‘Strophitus undulatus pennsylvanicus’].
(error for Anodonta pensylvanica Lamarck, 1819)

Anodonta proboscidalis Lea, 1836
‘Zieg.’ Lea, 1836. Synopsis Fam. Naiades: 50.
(intro'd as syn of Mytilus cygneus Linnaeus, 1758)

Anodonta salmonia Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 51. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 45, pl. 14, fig. 41.
Type(s): HOLOTYPE USNM_86540, Poland, Ohio.

Anodonta trapezialis Blainville, 1825
‘Lamarck’ of Authors.
Blainville, 1825. Manuel Malacol. et Conch.: 538.
Bory de St. Vincent, 1827. Encycl. Méth. 2: 147.
Menke, 1828. Syn. Method. Moll.: 63.
Menke, 1830. Syn. Method. Moll.: 106.
Lea, 1834. Trans. Amer. Phil. Soc. 5 [O. 1]: 93.
d’Orbigny, 1835. Mag. Zool. 5(61-62): 43.
Lea, 1836. Synopsis Fam. Naiades: 53.
Lea, 1838. Synopsis Fam. Naiades: 31.
Swainson, 1840. Treat. Malacol.: 287.
Hanley, 1843. Illustr. Descr. Cat. Rec. Bivalve Shells: 220.
d’Orbigny, 1846. Voyage dans l’Amérique Méridionale 5(3): 596.
Lea, 1852. Synopsis Fam. Naiades: 52.
Hupé, 1857. [in] Castelnau, Anim. Nouv. Rares d’Amer. Sud: 85.
Adams & Adams, 1857. Gen. Rec. Moll. 2(31-32): 504.
Lea, 1870. Synopsis Fam. Naiades: 82.
Ihering, 1893. Arch. Naturg. 59(1): 135.
Corsi, 1900. Anais Mus. Nac. Montevideo 2: 456.
Marshall, 1915. Proc. U.S. Nat. Mus. 49(2122): 529.
Haas, 1929. Senckenbergiana 11: 340.
H.B. Baker, 1930. Occ. Pap. Mus. Zool. Univ. Mich. (210): 70.
Morretes, 1949. Arqu. Mus. Paranaense 7: 27.
(error for Anodonta trapesialis Lamarck, 1819)

Anodonta wahlamatensis Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: addenda. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 78, pl. 20, fig. 64.
Type(s): HOLOTYPE USNM_86363, Wahlamat. R., Oregon.

Anodonta wardiana Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 50. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 46, pl. 14, fig. 42.
Type(s): HOLOTYPE USNM_86488, Chillicothe, Ohio.

Diplodon (s.s.) leai Simpson, 1900
‘Fer.’ Lea, 1836. Synopsis Fam. Naiades: 32 [as ‘Margarita (Unio) modestus’]. [nomen nudum]
Simpson, 1900. Proc. U.S. Nat. Mus. 22: 876, footnote.
Simpson, 1914. Descr. Cat. Naiades: 1241.
Type(s): SYNTYPE USNM_85725, Brazil.

Diptodon [sic] fuscatum Lea, 1836
‘Spix’ Lea, 1836. Synopsis Fam. Naiades: 11.
(error for Diplodon furcatum Wagner, 1827)

Iridina coelestis Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 57 [as ‘cœlestis’]. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 82, pl. 22, fig. 70 [as ‘cœlestis’].
Type(s): LECTOTYPE USNM_86785 (by Boyko & Sage, 1996: 17), Africa.

Margarita (Anodonta) chiziana Lea, 1836
‘Rang’ Lea, 1836. Synopsis Fam. Naiades: addenda.
(error for Anodonta chaiziana Rang, 1835)

Margarita (Unio) atratus Lea, 1836
‘Swain.’ Lea, 1836. Synopsis Fam. Naiades: 31.
Lea, 1852. Synopsis Fam. Naiades: 33.
(reference to Unio (Niaa) atrata Swainson, 1823)

Margarita (Unio) cailliaudii Lea, 1836
‘Fer.’ Lea, 1836. Synopsis Fam. Naiades: ??. [nomen nudum]
‘Fer.’ Lea, 1838. Synopsis Fam. Naiades: 24. [nomen nudum]
‘Fer.’ Lea, 1852. Synopsis Fam. Naiades: 36. [nomen nudum]
‘Fer.’ Lea, 1870. Synopsis Fam. Naiades: 58.

Margarita (Unio) crassissimus Lea, 1836
‘Ferussac’ Lea, 1836. Synopsis Fam. Naiades: 40.
‘Fer. Des Moul. Grat.’ Lea, 1838. Synopsis Fam. Naiades: 26.
(reference to Unio crassissima Férussac, 1827)

Margarita (Unio) fragrosus Lea, 1836
‘Con.’ Lea, 1836. Synopsis Fam. Naiades: 14 [corrected in the errata].
(error for Unio fragosus Conrad, 1835)

Margarita (Unio) merchisonianus Lea, 1836
Lea, 1836. Synopsis Fam. Naiades: 14 [corrected in the errata].
(error for Unio murchisonianus Lea, 1834)

Margarita (Unio) modestus Lea, 1836
‘Fer.’ Lea, 1836. Synopsis Fam. Naiades: 32. [nomen nudum]
‘Fer.’ Lea, 1838. Synopsis Fam. Naiades: 22. [nomen nudum]
‘Fer.’ Lea, 1852. Synopsis Fam. Naiades: 33. [nomen nudum]
‘Fer.’ Lea, 1870. Synopsis Fam. Naiades: 54. [nomen nudum]

Margarita (Unio) orbiculatus Lea, 1836
‘Hild.’ Lea, 1836. Synopsis Fam. Naiades: 25.
(reference to Unio orbiculatus Hildreth, 1828)

Margarita (Unio) paliatus Lea, 1836
“Ravenel’s letter” Lea, 1836. Synopsis Fam. Naiades: 31. [nomen nudum]
Lea, 1838. Synopsis Fam. Naiades: 22. [nomen nudum]
Lea, 1852. Synopsis Fam. Naiades: 33. [nomen nudum]
‘Ravenel’s Letter’ Lea, 1870. Synopsis Fam. Naiades: 53. [nomen nudum]
Type(s): NOMEN NUDUM USNM_85658, Santee Canal, S.C.

Margarita (Unio) tenerus Lea, 1836
‘Ravenel’ Lea, 1836. Synopsis Fam. Naiades: 39.
‘Rav.’ Lea, 1838. Synopsis Fam. Naiades: 25.
‘Rav.’ Lea, 1852. Synopsis Fam. Naiades: 39.
‘Rav. Han.’ Lea, 1870. Synopsis Fam. Naiades: 44.
(reference to Unio tenerus Simpson, 1892)

Margarita (Unio) watereensis Lea, 1836
Lea, 1836. Synopsis Fam. Naiades: 31.
Lea, 1852. Synopsis Fam. Naiades: 33.
Lea, 1870. Synopsis Fam. Naiades: 53.
(new name for Unio raveneli Conrad, 1834)

Margaritana arcula Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 43. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 71, pl. 22, fig. 69.
Type(s): LECTOTYPE USNM_86170, Altamaha R., Liberty Co., Georgia.

Margaritana deltoidea Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 44. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 43, pl. 13, fig. 38.
Type(s): LECTOTYPE USNM_86215 (by Clarke, 1981: 17), Scioto R., Ohio.

Margaritana fabula Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 46. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 44, pl. 13, fig. 39.
Type(s): LECTOTYPE USNM_86325 (by Clarke, 1981: 9), Cumberland R., Tenn.

Margaritana holstonia Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 45. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 42, pl. 13, fig. 37.
Type(s): HOLOTYPE (MONOTYPY) USNM_86320, Holston R., Tenn.

Margaron (Unio) cumberlandianus Lea, 1852
Lea, 1836. Synopsis Fam. Naiades: 27 [as ‘Margarita (Unio) cumberlandianus’]. [nomen nudum]
Lea, 1838. Synopsis Fam. Naiades: 20 [as ‘Margarita (Unio) cumberlandianus’]. [nomen nudum]
Lea, 1852. Synopsis Fam. Naiades: 30.
(new name for Unio cumberlandicus Lea, 1838)

Margaron (Unio) tigris Lea, 1870
‘Fer.’ Lea, 1836. Synopsis Fam. Naiades: 21. [nomen nudum]
‘Fer.’ Lea, 1838. Synopsis Fam. Naiades: 18. [nomen nudum]
‘Fer.’ Lea, 1852. Synopsis Fam. Naiades: 25. [nomen nudum]
‘Fer.’ Lea, 1870. Synopsis Fam. Naiades: 39.
(new name for Unio tigridis Bourguignat, 1852)
Type(s): MANUSCRIPT NAME USNM_84706, River at Bagdad, Persia.

Mya regulosa Lea, 1836
‘Wood’ Lea, 1836. Synopsis Fam. Naiades: 44.
‘Wood’ Lea, 1838. Synopsis Fam. Naiades: 27.
‘Wood’ Lea, 1852. Synopsis Fam. Naiades: 42.
‘Wood’ Lea, 1870. Synopsis Fam. Naiades: 67.
(error for Unio rugulosus Wood, 1828)

Unio arctior Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 39. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 10, pl. 4, fig. 10.
Type(s): HOLOTYPE USNM_86103, Ohio R., Cincinnati, Ohio.

Unio auricularis Lea, 1836
‘Speng.’ Lea, 1836. Synopsis Fam. Naiades: 40.
(error for Unio auricularius Spengler, 1793)

Unio barnesianus Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 20. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 31, pl. 10, fig. 26.
Type(s): HOLOTYPE (MONOTYPY) USNM_84586, Cumberland R., Tenn.

Unio bengalensis Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 26. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 3, pl. 2, fig. 3.

Unio carbonarius Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 19. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 37, pl. 11, fig. 32.
Type(s): LECTOTYPE [AS HOLOTYPE] USNM_84080A (by Johnson & Baker, 1973: 150), River Medellin, Vera Cruz, Mexico.

Unio carolinensis Lea, 1836
“Prof. Ravenel’s Letter” Lea, 1836. Synopsis Fam. Naiades: 39.
“Professor Ravenel’s Letter” Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 5.
(intro'd as syn of Unio vaughanianus Lea, 1838)

Unio carynthiacus Lea, 1836
‘Zeigler’ of Authors.
Lea, 1836. Synopsis Fam. Naiades: 27.
Schlüter, 1838. Kurzgef. Syst. Verz. Conch. Samml.: 33.
Lea, 1838. Synopsis Fam. Naiades: 20.
J.F. Schmidt, 1840. Bull. Soc. imp. Nat. Moscou 13: 435.
C.B. Adams, 1847. Cat. Gen. Sp. Adams: 14.
Lea, 1852. Synopsis Fam. Naiades: 30.
Lea, 1870. Synopsis Fam. Naiades: 47.
Schröder, 1885. Bull. Soc. Malac. France 2: 229.
Servain, 1888. Bull. Soc. Malac. France 5: 317.
Locard, 1889. Contr. Faune Malacol. Franc. 13: 141 [35].
Germain, 1904. Bull. Soc. Sci. Nat. Ouest France 4: 264.
Germain, 1931. Faune de France 22: 728.
(error for Unio carinthiacus Rossmässler, 1836)

Unio coccineus Lea, 1838
“Dr. Hildreth’s Letter” Lea, 1836. Synopsis Fam. Naiades: 34. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 12, pl. 5, fig. 12.
(homonym of Unio coccineus Conrad, 1836)
Type(s): FIGURED SYNTYPE USNM_85848, Columbus, Ohio.

Unio coeruleus Lea, 1836
‘Lea’ of Authors.
Lea, 1836. Synopsis Fam. Naiades: 26.
Lea, 1838. Synopsis Fam. Naiades: 20.
Lea, 1852. Synopsis Fam. Naiades: 30 [as ‘cœruleus’].
Küster, 1861. Conchyl. Cab. 9(2): 228.
Connolly, 1925. Rec. Albany Mus. 3: [5].
(error for Unio caeruleus Lea, 1831)

Unio contradens Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: addenda. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 75, pl. 18, fig. 58.
Type(s): HOLOTYPE USNM_85185, [Java].

Unio creperus Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 28. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 33, pl. 10, fig. 28.
Type(s): HOLOTYPE (MONOTYPY) USNM_85264, Tennessee.

Unio cumberlandicus Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 27 [as ‘cumberlandianus’]. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 25, pl. 7, fig. 19.
(renamed Margaron (Unio) cumberlandianus Lea, 1852)
Type(s): HOLOTYPE USNM_85254, Tenn.

Unio discus Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: addenda. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 74, pl. 18, fig. 57.
Type(s): HOLOTYPE (MONOTYPY) USNM_85341, Found in sand ballast, Phila, Pa [Mexico].

Unio dorfeuillianus Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: addenda [as ‘dorfuillianus’]. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 73, pl. 17, fig. 54.
(correct name for Unio dorfuillianus Lea, 1836)
Type(s): HOLOTYPE USNM_84215, Wabash River, Ind.

Unio dorfuillianus Lea, 1836
Lea, 1836. Synopsis Fam. Naiades: addenda. [nomen nudum]
(incorrect original spelling of Unio dorfeuillianus Lea, 1838)

Unio egyptiaca Deshayes, 1832
‘Cailliaud’ of Authors.
Deshayes, 1832. Enc. Méth. 2 (Deuxième partie): 587.
Jay, 1836. Cat. Rec. Shells: 20 [as ‘egyptiacus’].
Lea, 1836. Synopsis Fam. Naiades: 29.
Lea, 1838. Synopsis Fam. Naiades: 21 [as ‘egyptiacus’].
Hanley, 1843. Illustr. Descr. Cat. Rec. Bivalve Shells: 198 [as ‘egyptiacus’].
Lea, 1852. Synopsis Fam. Naiades: 32 [as ‘Margaron (Unio) egyptiacus’].
Conrad, 1853. Proc. Acad. Nat. Sci. 6: 267 [as ‘egyptiacus’].
Adams & Adams, 1857. Gen. Rec. Moll. 2(31-32): 494 [as ‘egyptiacus’].
Lea, 1870. Synopsis Fam. Naiades: 50.
Haas, 1940. Zool. Ser. Field Mus. Nat. Hist. 24: 140 [as ‘Caelatura egyptiaca’].
Araujo et al., 2017. Zool. J. Linn. Soc. 179(2): 280.
(error for Unio aegyptiacus Cailliaud, 1827)

Unio elongatus Lea, 1836
‘Pfeiffer’ of Authors.
Lea, 1836. Synopsis Fam. Naiades: 37.
Lea, 1838. Synopsis Fam. Naiades: 24.
Lea, 1852. Synopsis Fam. Naiades: 37.
Adams & Adams, 1857. Gen. Rec. Moll. 2(31-32): 491.
Haas, 1952. Nautilus 65(4): 118.
Bogan, 1993. Amer. Zool. 33: 602.
(error for Unio elongatula C. Pfeiffer, 1825)

Unio fisherianus Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 37. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 8, pl. 4, fig. 8.
Type(s): HOLOTYPE USNM_86022, Chester R., (head of), Md.

Unio folliculatus Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 34. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 38, pl. 11, fig. 33.
Type(s): HOLOTYPE USNM_85861, Savannah R., S.C.

Unio fuscus Lea, 1836
‘Zieg.’ Lea, 1836. Synopsis Fam. Naiades: 27.
(intro'd as syn of Mya batava Maton & Rackett, 1807)

Unio gibba Lea, 1836
‘Mühl. Pfeif.’ Lea, 1836. Synopsis Fam. Naiades: 27.
(intro'd as syn of Mya batava Maton & Rackett, 1807)

Unio gibber Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 20. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 35, pl. 10, fig. 30.
Type(s): FIGURED SYNTYPE USNM_84544, Carry [Caney] Fork, Tenn.

Unio glaber Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 29. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 34, pl. 10, fig. 29.
Type(s): HOLOTYPE USNM_85266, Holston R., Tenn.

Unio graniferus Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: addenda. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 69, pl. 19, fig. 60.
Type(s): HOLOTYPE USNM_84296, Tuscumbia, Ala.

Unio hopetonensis Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 30. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 29, pl. 9, fig. 24.
Type(s): HOLOTYPE USNM_85391, Hopeton, near Darien, Georgia.

Unio hydianus Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 25. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 14, pl. 6, fig. 14.
Type(s): HOLOTYPE USNM_85010, Bayou Teche, Louisiana.

Unio interruptus Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 24. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 15, pl. 6, fig. 15.
(renamed Unio latiradiatus Conrad, 1838; homonym of Unio (Eurynia) solenoides var. interrupta Rafinesque, 1820)
Type(s): HOLOTYPE USNM_84962, Harpeth R., Tenn.

Unio jayensis Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 37. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 28, pl. 9, fig. 23.
Type(s): HOLOTYPE USNM_86031, Florida.

Unio jejunus Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 30. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 9, pl. 4, fig. 9.
Type(s): HOLOTYPE USNM_85475, near Camden, S.C.

Unio laevigatus Say, 1834
‘Rafinesque’ of Authors.
Say, 1834. Amer. Conch. 6: [no pagination].
Conrad, 1834. New Fresh-Water Shells: 70.
Ferussac, 1835. Mag. Zool. 5(59-60): 28.
Lea, 1836. Synopsis Fam. Naiades: 59.
Lea, 1852. Synopsis Fam. Naiades: 57.
Conrad, 1853. Proc. Acad. Nat. Sci. 6: 251.
Ortmann, 1921. Mem. Carnegie Mus. 8: 92.
(error for Unio (Aximedia) levigata Rafinesque, 1820)

Unio lamellatus Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 26. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 19, pl. 6, fig. 16.
Type(s): HOLOTYPE USNM_85173, Ganges R., India.

Unio lecontianus Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 23. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 40, pl. 12, fig. 35.
Type(s): HOLOTYPE USNM_84852, Canoochie R., Liberty Co., Ga.

Unio limagnae Jay, 1835
‘Bouillet’ of Authors.
Jay, 1835. Cat. Rec. Shells: 16 [as ‘limagnæ’].
Lea, 1836. Synopsis Fam. Naiades: 36 [as ‘limagnæ’].
Lea, 1838. Synopsis Fam. Naiades: 24 [as ‘limagnæ’].
(error for Unio limaniae Dupuy, 1852)

Unio limovianscae Lea, 1836
‘Fer.’ Lea, 1836. Synopsis Fam. Naiades: 37.
(intro'd as syn of Mya pictorum Linnaeus, 1758)

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 lugubris Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 37. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 30, pl. 9, fig. 25.
(renamed Elliptio cylindraceus Frierson, 1927; homonym of Unio lugubris Say, 1832)
Type(s): HOLOTYPE USNM_85638, Hopeton, near Darien, Georgia.

Unio medellinus Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 26. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 39, pl. 12, fig. 34.
Type(s): LECTOTYPE ANSP_9679 (by Johnson & Baker, 1973: 161), Vera Cruz, Mex.

Unio melaplata Lea, 1836
‘Rafinesque’ Lea, 1836. Synopsis Fam. Naiades: 59.
‘Rafinesque’ Lea, 1852. Synopsis Fam. Naiades: 58.
‘Rafinesque’ Lea, 1870. Synopsis Fam. Naiades: 92.
(error for Truncilla metaplata Rafinesque, 1831)

Unio menkianus Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: addenda. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 76, pl. 19, fig. 59.
Type(s): SYNTYPES USNM_84965, Harpeth R., Tenn.

Unio muhlfeldianus Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 27 [as ‘Margarita (Unio) mühlfeldianus’]. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 41, pl. 12, fig. 36.
Type(s): HOLOTYPE USNM_85262, Cumberland R., Tenn.

Unio nitidens Lea, 1836
‘Fer.’ Lea, 1836. Synopsis Fam. Naiades: 41. [nomen nudum]
‘Fer.’ Lea, 1838. Synopsis Fam. Naiades: 26. [nomen nudum]
‘Fer.’ Lea, 1852. Synopsis Fam. Naiades: 40. [nomen nudum]
‘Fer.’ Lea, 1870. Synopsis Fam. Naiades: 63. [nomen nudum]

Unio notatus Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 26. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 28, pl. 8, fig. 22.
Type(s): HOLOTYPE (MONOTYPY) USNM_85075, Cumberland R., Tenn.

Unio obscurus Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 26. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 7, pl. 3, fig. 7.
Type(s): HOLOTYPE USNM_85128, Tennessee.

Unio orientalis Lea, 1836
‘Fer.’ Lea, 1836. Synopsis Fam. Naiades: 41. [nomen nudum]
‘Fer.’ Lea, 1838. Synopsis Fam. Naiades: 26. [nomen nudum]
‘Fer,’ Lea, 1852. Synopsis Fam. Naiades: 40. [nomen nudum]
‘Fer,’ Lea, 1870. Synopsis Fam. Naiades: 63. [nomen nudum]

Unio pliciferus Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 13. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 61, pl. 17, fig. 53.
Type(s): SYNTYPE USNM_84080, Mexico.

Unio preciosus Lea, 1836
‘Fer.’ Lea, 1836. Synopsis Fam. Naiades: 41. [nomen nudum]
‘Fer.’ Lea, 1838. Synopsis Fam. Naiades: 26. [nomen nudum]
‘Fer.’ Lea, 1852. Synopsis Fam. Naiades: 40. [nomen nudum]
‘Fer.’ Lea, 1870. Synopsis Fam. Naiades: 64. [nomen nudum]

Unio pulchellus Lea, 1836
‘Fer.’ Lea, 1836. Synopsis Fam. Naiades: 41. [nomen nudum]
‘Fer.’ Lea, 1838. Synopsis Fam. Naiades: 26.
‘Fer.’ Lea, 1852. Synopsis Fam. Naiades: 40. [nomen nudum]
‘Fer.’ Lea, 1870. Synopsis Fam. Naiades: 64. [nomen nudum]

Unio pulcher Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 25. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 6, pl. 3, fig. 6.

Unio pumilis Lea, 1836
‘Lea’ of Authors.
Lea, 1836. Synopsis Fam. Naiades: 20.
Lea, 1838. Synopsis Fam. Naiades: 17.
Lea, 1852. Synopsis Fam. Naiades: 24.
Conrad, 1853. Proc. Acad. Nat. Sci. 6: 255.
(error for Unio pumilus Lea, 1838)

Unio pumilus Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 20 [as ‘pumilis’]. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 23, pl. 7, fig. 17.
Type(s): HOLOTYPE USNM_84545, Black Cr., N.C.

Unio pusella Lea, 1836
‘Rafinesque’ Lea, 1836. Synopsis Fam. Naiades: 59.
‘Rafinesque’ Lea, 1852. Synopsis Fam. Naiades: 58.
‘Rafinesque’ Lea, 1870. Synopsis Fam. Naiades: 92.
(error for Obliquaria (Rotundaria) pusilla Rafinesque, 1820)

Unio rangianus Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: addenda. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 95, pl. 18, fig. 56.
Type(s): SYNTYPES USNM_84798, Mahoning R., near Poland, Ohio.

Unio rivalis Lea, 1836
‘Zeig.’ Lea, 1836. Synopsis Fam. Naiades: 46.
‘Zeig.’ Lea, 1838. Synopsis Fam. Naiades: 28.
(intro'd as syn of Mya margaritifera Linnaeus, 1758)

Unio roanokensis Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 30. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 27, pl. 8, fig. 21.
Type(s): HOLOTYPE USNM_85423, Roanoke R., near Tarborough, N.C.

Unio simus Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 29. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 26, pl. 8, fig. 20.
Type(s): HOLOTYPE USNM_85342, Cumberland R., Tenn.

Unio solidus Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 20. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 13, pl. 5, fig. 13.

Unio spinosus Lea, 1836
Lea, 1836. Synopsis Fam. Naiades: 17, fronticepiece.
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 57, pl. 16, fig. 50.
Type(s): SYNTYPE ANSP_128763, Darien, Ga.

Unio splendidus Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 23. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 70, pl. 19, fig. 61.
Type(s): HOLOTYPE USNM_84893, Altamaha R., Georgia.

Unio tappanianus Lea, 1838
‘Rafinesque’ Conrad, 1835. New Fresh-Water Shells, Appendix: 4, pl. 9, fig. 1 [as ‘Unio viridis?’].
Lea, 1836. Synopsis Fam. Naiades: 39. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 62, pl. 17, fig. 55.
Type(s): HOLOTYPE USNM_86133, Juniata River, near Hollidaysburg, Pennsylvania.

Unio triradiata Lea, 1836
Lea, 1836. Synopsis Fam. Naiades: 29.
(intro'd as syn of Mya corrugata Müller, 1774)

Unio turgidus Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 16. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 11, pl. 5, fig. 11.
Type(s): HOLOTYPE USNM_84277, near New Orleans, La.

Unio vanuxemensis Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 26. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 36, pl. 11, fig. 31.
Type(s): HOLOTYPE USNM_85146, Cumberland R., Tenn.

Unio vaughanianus Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 39. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 5, pl. 3, fig. 5.
Type(s): SYNTYPE USNM_86106, Sawneys Creek, Camden, S. Carolina.

Unio venustus Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 24. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 4, pl. 2, fig. 4.
Type(s): HOLOTYPE USNM_84971, Potosi, Missouri.

Unio zeiglerianus Lea, 1838
Lea, 1836. Synopsis Fam. Naiades: 26. [nomen nudum]
Lea, 1838. Trans. Amer. Phil. Soc. 6 [O. 2]: 32, pl. 10, fig. 27.
Type(s): HOLOTYPE USNM_85130, Cumberland R., Tenn.