Rotundaria Agassiz, 1852
‘Rafinesque’ of Authors.
Agassiz, 1852, Arch. Naturg. 18(1): 48.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 765.
Ortmann, 1909, Ann. Carnegie Mus. 5: 201.
Ortmann, 1910, Nautilus 23(11): 140.
Ortmann, 1912, Ann. Carnegie Mus. 8: 257.
Simpson, 1914, Descr. Cat. Naiades: 811.
Utterback, 1915, Amer. Midl. Nat. 4(4): 149.
Ortmann, 1918, Proc. Amer. Phil. Soc. 57(6): 543.
Haas, 1929, Senckenbergiana 11: 333.
Haas, 1930, Senckenbergiana 12(6): 319.
(reference to Rotundaria Rafinesque, 1820)
Type species: Obliquaria (Rotundaria) tuberculata Rafinesque, 1820 () = Cyclonaias tuberculata

Symphynota Simpson, 1900
‘Lea’ of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 662.
Ortmann, 1912, Ann. Carnegie Mus. 8: 280.
Simpson, 1914, Descr. Cat. Naiades: 480.
Ortmann, 1914, Nautilus 28(4): 41.
(reference to Symphynota Lea, 1829)
Type species: Symphynota compressa Lea, 1829 (orig. desig.) = Platynaias compressa

Amygdalonajas Ortmann, 1909
Ortmann, 1909, Ann. Carnegie Mus. 5: 192.
Ortmann, 1912, Ann. Carnegie Mus. 8: 327.
Ortmann, 1914, Nautilus 28(6): 67.
(error for Amygdalonaias Fischer & Crosse, 1894)

Paraptera Ortmann, 1911
Ortmann, 1911, Mem. Carnegie Mus. 4: 301.
Ortmann, 1912, Ann. Carnegie Mus. 8: 330.
Type species: Unio gracilis Barnes, 1823 (orig. desig.) = Potamilus fragilis

Friersonia Ortmann, 1912
Ortmann, 1912, Ann. Carnegie Mus. 8: 318.
Type species: Lampsilis iridella Pilsbry & Frierson, 1908 (orig. desig.) = Friersonia iridella

Fusconaja Ortmann, 1912
Ortmann, 1912, Ann. Carnegie Mus. 8: 240.
Ortmann, 1913, Nautilus 27(8): 89.
(error for Fusconaia Simpson, 1900)

Nephronajas Ortmann, 1912
‘Crosse & Fischer’ of Authors.
Ortmann, 1912, Ann. Carnegie Mus. 8: 324.
Baker, 1916, Tech. Publ. New York State Coll. Forestry (4): 75.
(error for Nephronaias Fischer & Crosse, 1894)

Quadrula lachrymosa Swainson, 1840
‘Lea’ of Authors.
Swainson, 1840, Treat. Malacol.: 378.
Hanley, 1843, Illustr. Descr. Cat. Rec. Bivalve Shells: 177.
Conrad, 1853, Proc. Acad. Nat. Sci. 6: 256.
Adams & Adams, 1857, Gen. Rec. Moll. 2(31-32): 497.
Reeve, 1864, Conch. Icon. 16: pl. 9, sp. 33.
Call, 1895, Trans. Acad. Sci. St. Louis 7: 21.
F.C. Baker, 1898, Bull. Chicago Acad. Sci. 3(1): 83, pl. 25, fig. 1; pl. 12, fig. 2.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 776.
Call, 1900, Ind. Dept. Geol. Nat. Res. (1899): 489.
Ortmann, 1909, Nautilus 22(10): 100.
Ortmann, 1909, Ann. Carnegie Mus. 5: 199.
Ortmann, 1910, Nautilus 23(11): 140.
Ortmann, 1910, Nautilus 23: 116.
Ortmann, 1912, Ann. Carnegie Mus. 8: 253.
Simpson, 1914, Descr. Cat. Naiades: 839, 841.
Vanatta, 1915, Proc. Acad. Nat. Sci. 67: 556.
Ortmann & Walker, 1922, Occ. Pap. Mus. Zool. Univ. Mich. (112): 14, 16.
Frierson, 1927, Check List N. Amer. Naiades: 47.
F.C. Baker, 1928, Bull. Wisconsin Geol. Nat. Hist. Survey 70(2): 84.
R.I. Johnson, 1980, Bull. MCZ 149(2): 90.
Vidrine, 1993, Histr. Distr. Freshw. Mussels LA: 53.
Strayer & Jirka, 1997, Pearly Mussels NY (26): 98.
(error for Unio lacrymosus Lea, 1828)

Unio popeii Fischer & Crosse, 1894
of Authors.
Fischer & Crosse, 1894, Miss. Sci. Mexique, Rech. Zool. 2(16): 605 [as ‘Unio (Graphonaias) popei’].
Martens, 1900, Biol. Centr.-Amer., Moll.: 504 [as ‘Unio (Nephronaias) popei’].
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 738 [as ‘Unio (sec. Elliptio)’]. [in part]
Pilsbry, 1910, Proc. Acad. Nat. Sci. 61: 535. [in part]
Ortmann, 1912, Ann. Carnegie Mus. 8: 271 [as ‘Elliptio’].
Simpson, 1914, Descr. Cat. Naiades: 700 [as ‘Unio (sec. Elliptio)’]. [in part]
Frierson, 1927, Check List N. Amer. Naiades: 38 [as ‘Elliptio (Popenaias)’]. [in part]
Haas, 1929, Senckenbergiana 11: 330 [as ‘Elliptio (Popenaias)’]. [in part]
Haas, 1969, Das Tierreich 88: 201 [as ‘Nephronaias (Popenaias)’]. [in part]
Graf & Cummings, 2007, J. Moll. Studies 73: 308 [as ‘Popenaias’]. [in part]
Pfeiffer et al., 2019, Zool. Scripta 48: 504 [as ‘Popenaias’]. [in part]
(misidentified reference to Unio popeii Lea, 1857)

Margaritana hembeli Simpson, 1900
‘Conrad’ of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 679.
Ortmann, 1912, Ann. Carnegie Mus. 8: 235, fig. 3.
Simpson, 1914, Descr. Cat. Naiades: 523. [in part]
Clench & Turner, 1956, Bull. Fla. State Mus. 1: 148, pl. 5, fig. 1.
(misidentified reference to Unio hembeli Conrad, 1838)

Unio obliquus Call, 1900
‘Lamarck’ of Authors.
Call, 1900, Ind. Dept. Geol. Nat. Res. (1899): 501, pl. 57.
Ortmann, 1912, Ann. Carnegie Mus. 8: 264.
(reference to Unio obliqua Lamarck, 1819)

Truncilla florentina Ortmann, 1912
‘Lea’ Ortmann, 1912, Ann. Carnegie Mus. 8: 359.
(misidentified reference to Unio florentinus Lea, 1857)

Alasmidonta heterodon (Lea, 1829)

Alasmidonta marginata Say, 1819

Alasmidonta minor (Lea, 1845)

Alasmidonta undulata (Say, 1817)

Amygdalonajas [sic] elegans (Lea, 1831)

Anodonta cataracta Say, 1817

Anodonta complanata (Rossmässler, 1835)

Anodonta cygneus (Linnaeus, 1758)

Anodonta grandis Say, 1829

Anodonta henryana Lea, 1857

Anodonta imbecillis Say, 1829

Anodontoides ferussacianus (Lea, 1834)

Arcidens confragosus (Say, 1829)

Crenodonta heros (Say, 1829)

Crenodonta perplicata (Conrad, 1841)

Crenodonta plicata (Say, 1819)

Crenodonta trapezoides (Lea, 1831)

Crenodonta undulata (Barnes, 1823)

Cyprogenia irrorata (Lea, 1828)

Dromus dromas (Lea, 1834)

Elliptio beadleianus (Lea, 1861)

Elliptio crassidens (Lamarck, 1819)

Elliptio gibbosus (Barnes, 1823)

Elliptio jayensis (Lea, 1838)

Elliptio popeii (Lea, 1857)

Elliptio productus (Conrad, 1836)

Elliptio spinosus (Lea, 1838)

Eurynia (Carunculina) glans (Lea, 1831)

Eurynia (Carunculina) parvus (Barnes, 1823)

Eurynia (Carunculina) paula (Lea, 1840)

Eurynia (Carunculina) texasensis [sic] (Lea, 1857)

Eurynia (Micromya) fabalis (Lea, 1831)

Eurynia (Micromya) iris (Lea, 1829)

Eurynia (Micromya) lienosa (Conrad, 1834)

Eurynia (Micromya) picta (Lea, 1834)

Eurynia (Micromya) trabalis (Conrad, 1834)

Eurynia (Micromya) vanuxemensis (Lea, 1838)

Eurynia (Micromya) vibex (Conrad, 1834)

Eurynia (s.s.) nasuta (Say, 1817)

Eurynia (s.s.) recta (Lamarck, 1819)

Eurynia (s.s.) subrostrata (Say, 1831)

Friersonia iridella (Pilsbry & Frierson, 1907)

Fusconaia cerina (Conrad, 1838)

Fusconaia ebenus (Lea, 1831)

Fusconaia lananensis (Frierson, 1901)

Fusconaia rubiginosa (Lea, 1829)

Fusconaia subrotundus (Lea, 1831)
+ Unio kirtlandianus Lea, 1834

Fusconaia undata (Barnes, 1823)

Lamellidens consobrinus (Lea, 1860)

Lamellidens marginalis (Lamarck, 1819)

Lampsilis anodontoides (Lea, 1831)
+ Lampsilis fallaciosus Smith, 1899

Lampsilis cariosa (Say, 1817)

Lampsilis claibornensis (Lea, 1838)

Lampsilis excavata (Lea, 1857)

Lampsilis hydiana (Lea, 1838)

Lampsilis luteola (Lamarck, 1819)

Lampsilis multiradiata (Lea, 1829)

Lampsilis orbiculata (Hildreth, 1828)

Lampsilis ovata (Say, 1817)

Lampsilis radiata (Gmelin, 1791)

Lampsilis ventricosa (Barnes, 1823)

Lastena lata (Rafinesque, 1820)

Margaritana hembeli (Conrad, 1838)

Margaritana margaritifera (Linnaeus, 1758)

Margaritana monodonta (Say, 1829)

Margaritana sinuata (Lamarck, 1819)

Medionidus conradicus (Lea, 1834)

Nephronaias ligamentina (Lamarck, 1819)
+ Lampsilis (sec. Eurynia) ligamentina var. gibbus Simpson, 1900

Nephronaias perdix (Lea, 1834)

Nephronaias sapotalensis (Lea, 1841)

Obliquaria reflexa Rafinesque, 1820

Obovaria (Pseudoon) castaneus (Lea, 1831)

Obovaria (Pseudoon) ellipsis (Lea, 1828)

Obovaria circulus (Lea, 1829)
+ Unio lens Lea, 1831

Obovaria retusa (Lamarck, 1819)

Obovaria unicolor (Lea, 1845)

Paraptera fimbriata (Frierson, 1907)

Paraptera gracilis (Barnes, 1823)

Parreysia wynegungaensis (Lea, 1860)

Plagiola securis (Lea, 1829)

Plethobasus aesopus (Green, 1827)

Plethobasus cooperianus (Lea, 1834)

Pleurobema clava (Lamarck, 1819)

Pleurobema coccineum (Conrad, 1836)

Pleurobema decisum (Lea, 1831)

Pleurobema obliquum (Lamarck, 1819)
+ Unio pyramidatus Lea, 1831

Pleurobema riddelli (Lea, 1862)

Proptera alata (Say, 1817)

Proptera laevissima (Lea, 1829)

Proptera purpurata (Lamarck, 1819)

Ptychobranchus clintonensis Simpson, 1900

Ptychobranchus foremanianus (Lea, 1842)

Ptychobranchus phaseolus (Hildreth, 1828)

Ptychobranchus subtentus (Say, 1825)

Quadrula aspera (Lea, 1831)

Quadrula cylindrica (Say, 1817)

Quadrula lachrymosa [sic] (Lea, 1828)

Quadrula metanevra (Rafinesque, 1820)

Quadrula mortoni (Conrad, 1836)

Quadrula pustulosa (Lea, 1831)

Quadrula refulgens (Lea, 1868)

Quadrula sparsa (Lea, 1841)

Quadrula sphaerica (Lea, 1868)

Quadrula tuberculata (Barnes, 1823)

Rotundaria tuberculata (Rafinesque, 1820)

Strophitus edentulus (Say, 1829)

Symphynota complanata (Barnes, 1823)

Symphynota compressa Lea, 1829

Symphynota costata (Rafinesque, 1820)

Symphynota viridis (Conrad, 1835)

Truncilla capsaeformis (Lea, 1834)

Truncilla florentina (Lea, 1857)

Truncilla haysiana (Lea, 1834)

Truncilla penita (Conrad, 1834)

Truncilla rangiana (Lea, 1838)

Truncilla triquetra Rafinesque, 1820

Unio crassus Retzius, 1788

Unio crassus consentaneus Rossmässler, 1836

Unio crassus musivus Spengler, 1793
+ Mya batava Maton & Rackett, 1807

Unio pictorum (Linnaeus, 1758)

Unio tumidus Retzius, 1788

Uniomerus tetralasmus (Say, 1831)