Reeve, L.A. 1864. Monograph of the Genus Unio. Conchologica Iconica, or Illustrations of the shells of molluscous animals 16: pls. 2-18. Available electronically.
‘Swainson’ of Authors.
Lea, 1852. Synopsis Fam. Naiades: 22.
Reeve, 1864. Conch. Icon. 16: pl. 7,sp. 25.
Lea, 1870. Synopsis Fam. Naiades: 33.
Paetel, 1875. Fam. Gatt. Moll.: 203.
(error for Theliderma Swainson, 1840)
Type species: Obliquaria (Quadrula) metanevra Rafinesque, 1820 = Theliderma metanevra

‘Lea’ Reeve, 1864. Conch. Icon. 16: pl. 15, sp. 65 [as ‘Unio edgarianus’].
Ortmann, 1918. Proc. Amer. Phil. Soc. 57(6): 533.
Ortmann, 1924. Amer. Midl. Nat. 9(1): 43.
(intro'd as intra-sp. of Unio cor Conrad, 1834)
Type(s): LECTOTYPE CM_61.6326, Clinch River, Speer’s Ferry, Scott Co., Virginia.
‘Lea’ Reeve, 1864. Conch. Icon. 16: pl. 4, sp. 13; errata [changed to ‘U. heros, Say’].
(error for Unio heros Say, 1829; misidentified reference to Unio atrocostatus Lea, 1845)
‘Conrad’ of Authors.
Lea, 1852. Synopsis Fam. Naiades: 33.
Reeve, 1864. Conch. Icon. 16: pl. 18, sp. 81.
(error for Unio balonnensis Conrad, 1850)
‘Rafinesque’ of Authors.
Conrad, 1838. Monogr. Fam. Unionidae 1(10): 82, pl. 45, fig. 2.
Lapham, 1852. Trans. WI Agri. Soc. 2: 369.
Reeve, 1864. Conch. Icon. 16: pl. 12, sp. 43.
(reference to Obliquaria (Quadrula) bullata Rafinesque, 1820)
Reeve, 1864. Conch. Icon. 16: pl. 8, sp. 31; pl. 13, fig. 50.
(reference to Unio cicatricosus Say, 1829)

Reeve, 1864. Conch. Icon. 16: pl. 10, sp. 39.
Type(s): HOLOTYPE (MONOTYPY) BMNH_1965209, Chiapas, Mexico.
‘Rafinesque’ of Authors.
Conrad, 1836. Monogr. Fam. Unionidae 1(2): pl. 17, fig. 7.
Reeve, 1864. Conch. Icon. 16: pl. 4, sp. 16.
(reference to Amblema costata Rafinesque, 1820)
‘Rafinesque’ Reeve, 1864. Conch. Icon. 16: pl. 16, fig. 73.
(misidentified reference to Pleurobema cuneata Rafinesque, 1820)
‘Lamarck’ Reeve, 1864. Conch. Icon. 16: pl. 18, sp. 81.
(misidentified reference to Unio depressa Lamarck, 1819)

‘Anthony MS’ Reeve, 1864. Conch. Icon. 16: pl. 15, sp. 61.
J.G. Anthony, 1865. Amer. J. Conch. 1(2): 156, pl. 12, fig. 2.
Type(s): HOLOTYPE BMNH_1965210, Tennessee.
‘Lea’ Reeve, 1864. Conch. Icon. 16: pl. 15, sp. 65.
(reference to Unio edgarianus Lea, 1840)
‘Rafinesque’ of Authors.
Conrad, 1835. Monogr. Fam. Unionidae 1(1): 8, pl. 6, fig. 2.
Reeve, 1864. Conch. Icon. 16: pl. 6, sp. 22; pl. 13, fig. 53.
(reference to Obliquaria (Quadrula) flexuosa Rafinesque, 1820)
‘Rafinesque’ of Authors.
Ferussac, 1835. Mag. Zool. 5(59-60): 28.
Conrad, 1836. Monogr. Fam. Unionidae 1(6): 50, pl. 27, fig. 1.
Reeve, 1864. Conch. Icon. 16: pl. 11, sp. 41, figs. 41a-b.
(reference to Amblema gibbosa Rafinesque, 1820)
‘Lea’ Reeve, 1864. Conch. Icon. 16: pl. 17, sp. 76; errata [changed to ‘U. interventus, Lea’].
(error for Unio hanleyianus Lea, 1852)
‘Lea’ of Authors.
Lea, 1852. Synopsis Fam. Naiades: 21 [as ‘hippopæus’].
Conrad, 1853. Proc. Acad. Nat. Sci. 6: 261 [as ‘hippopæus’].
Adams & Adams, 1857. Gen. Rec. Moll. 2(31-32): 497 [as ‘hippopæus’].
Reeve, 1864. Conch. Icon. 16: pl. 11, sp. 40 [as ‘hippopæus’].
Lea, 1870. Synopsis Fam. Naiades: 31 [as ‘hippopæus’].
B.H. Wright, 1888. Check List N. Amer. Unionidae etc.: [3], [as ‘hippopæus’].
Simpson, 1900. Proc. U.S. Nat. Mus. 22: 767 [as ‘hippopæa’].
Ortmann, 1909. Nautilus 22(10): 101 [as ‘Q. hippopæa’].
Ortmann, 1909. Ann. Carnegie Mus. 5: 203 [as ‘Quadrula undulata hippopæa’].
Simpson, 1914. Descr. Cat. Naiades: 816 [as ‘hippopæa’].
Frierson, 1927. Check List N. Amer. Naiades: 61.
Haas, 1969. Das Tierreich 88: 287.
Clarke, 1973. Malacologia 13(1-2): 35.
Burch, 1975. Freshw. Unio. North Amer.: 165.
Strayer & Jirka, 1997. Pearly Mussels NY (26): 98.
He & Zhuang, 2013. Freshwater Bivalves China: 27.
(error for Unio hippopoeus Lea, 1845)
‘Rafinesque’ of Authors.
Conrad, 1834. New Fresh-Water Shells: 69.
Say, 1834. Amer. Conch. 6: ??.
Ferussac, 1835. Mag. Zool. 5(59-60): 28.
Conrad, 1838. Monogr. Fam. Unionidae 1(10): 88, pl. 48.
Reeve, 1864. Conch. Icon. 16: pl. 14, sp. 56.
(misidentified reference to Obliquaria (Plagiola) interrupta Rafinesque, 1820)
‘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)
‘Lea’ Reeve, 1864. Conch. Icon. 16: pl. 17, sp. 77.
(misidentified reference to Unio medius Lea, 1861)
‘Lea’ Reeve, 1864. Conch. Icon. 16: pl. 16, sp. 72.
(misidentified reference to Unio mundus Lea, 1857)
‘Rafinesque’ of Authors.
Say, 1834. Amer. Conch. 6: ??.
Conrad, 1837. Monogr. Fam. Unionidae 1(9): 80, pl. 45, fig. 1.
Reeve, 1864. Conch. Icon. 16: pl. 13, sp. 51.
(reference to Obliquaria (Quadrula) nodulata Rafinesque, 1820)
‘Wood’ Reeve, 1864. Conch. Icon. 16: pl. 9, sp. 32; errata [changed to ‘U. leai, Gray’].
(misidentified reference to Mya nodulosa Wood, 1815)
‘Lea’ Reeve, 1864. Conch. Icon. 16: pl. 18, sp. 82.
(misidentified reference to Unio perdix Lea, 1834)
‘Conrad’ of Authors.
Reeve, 1864. Conch. Icon. 16: pl. 11, sp. 42.
Paetel, 1890. Cat. Conch.-Samml. 3: 163.
(error for Unio pearlensis Conrad, 1855)
‘Conrad, Anthony, MS.’ Reeve, 1864. Conch. Icon. 16: pl. 9, sp. 35; errata [changed to ‘U. atrocostatus’].
(reference to Unio perplicatus Conrad, 1841; error for Unio atrocostatus Lea, 1845)
‘Conrad’ Reeve, 1864. Conch. Icon. 16: pl. 4, sp. 15.
(misidentified reference to Unio phillipsii Conrad, 1835)
‘Lea’ Reeve, 1864. Conch. Icon. 16: pl. 10, sp. 37; errata [changed to ‘U. crocodilorum Morelet’].
(misidentified reference to Unio pliciferus Lea, 1838; error for Unio crocodilorum Morelet, 1849)
‘Rafinesque’ Reeve, 1864. Conch. Icon. 16: pl. 6, sp. 24.
(error for Obliquaria (Quadrula) quadrula Rafinesque, 1820)
‘Lea’ Reeve, 1864. Conch. Icon. 16: pl. 16, sp. 70.
(misidentified reference to Unio ravenelianus Lea, 1834; error for Unio ravenelianus Lea, 1834)

‘Anthony, MS’ Reeve, 1864. Conch. Icon. 16: pl. 15, sp. 67.
J.G. Anthony, 1865. Amer. J. Conch. 1(2): 157, pl. 12, fig. 3.
Type(s): HOLOTYPE MCZ_161898, Tennessee.

‘Philippi’ Reeve, 1864. Conch. Icon. 16: pl. 10, sp. 36; errata.
(misidentified reference to Unio semigranosus von dem Busch in Philippi, 1843)
Type(s): FIGURED SPECIMEN BMNH_196496, Mexico.
‘Lea’ of Authors.
Küster, 1852. Conchyl. Cab. 9(2): 62.
Agassiz, 1852. Arch. Naturg. 18(1): 43.
Reeve, 1864. Conch. Icon. 16: pl. 14, sp. 58.
Simpson, 1900. Proc. U.S. Nat. Mus. 22: 520.
Simpson, 1914. Descr. Cat. Naiades: 17.
Frierson, 1927. Check List N. Amer. Naiades: 94.
Haas, 1969. Das Tierreich 88: 483.
Burch, 1975. Freshw. Unio. North Amer.: 173.
R.I. Johnson, 1978. Bull. MCZ 148: 280.
Parmalee & Bogan, 1998. The Freshwater Mussels of Tennessee: 91.
(error for Unio sowerbianus Lea, 1834)
‘Rafinesque’ of Authors.
Say, 1834. Amer. Conch. 6: ??.
Ferussac, 1835. Mag. Zool. 5(59-60): 28.
Conrad, 1838. Monogr. Fam. Unionidae 1(10): 83, pl. 46, fig. 1.
Reeve, 1864. Conch. Icon. 16: pl. 12, sp. 45.
(reference to Obovaria stegaria Rafinesque, 1820)
‘Rafinesque’ Reeve, 1864. Conch. Icon. 16: pl. 8, sp. 30 [changed to ‘cooperianus’ in the errata].
(misidentified reference to Obovaria striata Rafinesque, 1820; error for Unio cooperianus Lea, 1834)
‘Say’ Reeve, 1864. Conch. Icon. 16: pl. 17, sp. 78; errata [changed to ‘U. patulus Lea’].
(misidentified reference to Unio subrostratus Say, 1831; error for Unio patulus Lea, 1829)
‘Lea’ Reeve, 1864. Conch. Icon. 16: pl. 3, sp. 10.
(misidentified reference to Unio turgidus Lea, 1838)
Unio apiculatus Say, 1829 = Quadrula quadrula
Unio arcæformis Lea, 1831 = Epioblasma arcaeformis+ Unio nexus Say, 1831
Unio asper Lea, 1831 = Quadrula quadrula
Unio caelatus Conrad, 1834 = Lemiox rimosus
Unio caperatus Lea, 1845 = Dromus dromas
Unio capsaeformis Lea, 1834 = Epioblasma capsaeformis
Unio chattanoogaensis Lea, 1858 = Pleurobema decisum
Unio cicatricosus Say, 1829 = Plethobasus cicatricosus+ Unio varicosus Lea, 1831
Unio corium Reeve, 1864 = Psoronaias crocodilorum+ Unio undulatus Barnes, 1823
Unio cuneatus (Rafinesque, 1820) = Pleurobema clava+ Unio aesopus Green, 1827
Unio decisus Lea, 1831 = Pleurobema decisum+ Unio balonnensis Conrad, 1850
Unio deviatus ‘Anthony MS’ Reeve, 1864 = Epioblasma turgidula
Unio dorfeuillianus Lea, 1838 = Pustulosa pustulosa
Unio dromas Lea, 1834 = Dromus dromas
Unio edgarianus Lea, 1840 = Fusconaia cor
Unio elliottii Lea, 1856 = Amblema elliottii
Unio flexuosus (Rafinesque, 1820) = Epioblasma flexuosa+ Unio foliatus Hildreth, 1828
Unio forsheyi Lea, 1859 = Quadrula quadrula
Unio fragosus Conrad, 1836 = Quadrula fragosa+ Unio perplexus Lea, 1831
Unio graniferus Lea, 1838 = Cyclonaias tuberculata
Unio haysianus Lea, 1834 = Epioblasma haysiana
Unio heros Say, 1829 = Megalonaias nervosa+ Unio multiplicatus Lea, 1831
Unio hippopæus [sic] Lea, 1845 = Amblema plicata
Unio intermedius Conrad, 1836 = Theliderma intermedia
Unio interrupta (Rafinesque, 1820) = Ptychobranchus fasciolaris + Epioblasma brevidens+ Unio brevidens Lea, 1831
Unio irroratus Lea, 1828 = Cyprogenia stegaria
Unio kleinianus Lea, 1852 = Pustulosa kleiniana+ Mya nodulosa Wood, 1815
+ Mya nodulosa Wood, 1815
Unio lenior Lea, 1840 = Epioblasma lenior+ Unio lenis Lea, 1840
Unio metanever (Rafinesque, 1820) = Theliderma metanevra + Quadrula quadrula+ Unio nodosus Barnes, 1823
+ Unio rugosus Barnes, 1823
Unio nucleopsis Conrad, 1849 = Pleurobema georgianum
Unio obesus Lea, 1831 = Uniomerus carolinianus
Unio penitus Conrad, 1834 = Epioblasma penita+ Unio pectorosus Conrad, 1834
Unio pernodosus Lea, 1845 = Pustulosa pustulosa
Unio personatus Say, 1829 = Epioblasma personata+ Unio capillaris Lea, 1834
Unio pileus Lea, 1834 = Epioblasma personata
Unio plicatus Say = Amblema plicata + Plectomerus dombeyanus+ Unio peruviana Lamarck, 1819
+ Unio rariplicata Lamarck, 1819
+ Unio dombeyana Valenciennes, 1827
Unio prasinus Conrad, 1834 = Pustulosa pustulosa+ Unio quadrulus ‘Rafinesque’ of Authors
+ Unio asperrimus Lea, 1831
Unio rangianus Lea, 1838 = Epioblasma rangiana
Unio reflexus (Rafinesque, 1820) = Obliquaria reflexa+ Unio cornutus Barnes, 1823
Unio ridibundus Say, 1829 = Epioblasma obliquata
Unio sacculus ‘Anthony, MS’ Reeve, 1864 = Epioblasma florentina+ Unio nodiferus Conrad, 1841
Unio sparsus Lea, 1841 = Theliderma sparsa
Unio stapes Lea, 1831 = Theliderma stapes
Unio stegarius (Rafinesque, 1820) = Cyprogenia stegaria
Unio stewardsonii Lea, 1852 = Epioblasma stewardsonii
Unio sulcatus Lea, 1829 = Epioblasma obliquata
Unio tavoyensis Gould, 1843 = Leoparreysia tavoyensis
Unio trapezoides Lea, 1831 = Plectomerus dombeyanus+ Unio interruptus Say, 1831
Unio tuberculatus (Rafinesque, 1820) = Cyclonaias tuberculata+ Unio verrucosus Barnes, 1823
+ Unio tuberculosus Valenciennes, 1827
Unio turgidulus Lea, 1858 = Epioblasma turgidula+ Unio mortoni Conrad, 1835
Unio vittatus Lea, 1859 = Velesunio ambiguus
Unio woodwardianus [sic] Lea, 1857 = Ptychobranchus foremanianus+ Unio woodwardianus ‘Lea’ of Authors