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

Unio (Hyridella) muehlfeldtianus Adams & Adams, 1857
‘Lea’ Adams & Adams, 1857, Gen. Rec. Moll. 2(31-32): 494 [as ‘mühlfeldtianus’].
Ortmann, 1918, Proc. Amer. Phil. Soc. 57(6): 577.
(error for Unio muhlfeldianus Lea, 1838)

Fusconaia cor var. analoga Ortmann, 1918
‘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.

Alasmidonta (Decurambis) atropurpurea (Raf., 1831)

Alasmidonta (Decurambis) marginata Say, 1819

Alasmidonta (Decurambis) raveneliana (Lea, 1834)

Alasmidonta (Pressodonta) minor (Lea, 1845)

Amblema plicata costata Rafinesque, 1820

Amygdalonaias truncata (Rafinesque, 1820)
+ Unio elegans Lea, 1831

Anodonta grandis gigantea Lea, 1834

Anodontoides ferussacianus (Lea, 1834)
+ Anodonta oblita Lea, 1852
+ Anodonta denigrata Lea, 1852

Cumberlandia monodonta (Say, 1829)

Cyprogenia stegaria (Rafinesque, 1820)
+ Unio irroratus Lea, 1828

Dromus dromas (Lea, 1834)

Dromus dromas caperatus (Lea, 1845)

Ellipsaria fasciolaris (Rafinesque, 1820)
+ Unio phaseolus Hildreth, 1828

Ellipsaria subtenta (Say, 1825)

Elliptio dilatatus (Rafinesque, 1820)
+ Unio gibbosus Barnes, 1823

Elliptio niger (Rafinesque, 1820)
+ Unio crassidens Lamarck, 1819

Eurynia (Micromya) fabalis (Lea, 1831)

Eurynia (Micromya) perpurpurea (Lea, 1861)

Eurynia (Micromya) trabalis (Conrad, 1834)

Eurynia (Micromya) vanuxemensis (Lea, 1838)
+ Unio nitens Lea, 1840
+ Unio umbrosus Lea, 1857
+ Unio umbrans Lea, 1857
+ Unio tenebricus Lea, 1857
+ Unio pybasii Lea, 1858
+ Unio fabaceus Lea, 1861
+ Unio copei Lea, 1868
+ Unio caliginosus Pilsbry & Rhoads, 1896

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

Eurynia nebulosus (Conrad, 1834)
+ Unio cumberlandicus Lea, 1838
+ Unio notatus Lea, 1838
+ Unio glaber Lea, 1838
+ Unio creperus Lea, 1838
+ Unio muhlfeldianus Lea, 1838
+ Unio simus Lea, 1838
+ Unio obscurus Lea, 1838
+ Unio zeiglerianus Lea, 1838
+ Unio amoenus Lea, 1840
+ Unio fatuus Lea, 1840
+ Unio dactylus Lea, 1840
+ Unio tener Lea, 1840
+ Unio regularis Lea, 1841
+ Unio puniceus Haldeman, 1842
+ Margaron (Unio) cumberlandianus Lea, 1852
+ Margaron (Unio) cumberlandianus Lea, 1852
+ Unio radians Lea, 1857
+ Unio jonesii Lea, 1859
+ Unio discrepans Lea, 1860
+ Unio scitulus Lea, 1860
+ Unio linguaeformis Lea, 1860
+ Unio perpictus Lea, 1860
+ Unio planicostatus Lea, 1860
+ Unio sparus Lea, 1868
+ Unio dispansus Lea, 1871

Fusconaia barnesiana (Lea, 1838)
+ Unio meredithii Lea, 1858
+ Unio pudicus Lea, 1860
+ Unio lyonii Lea, 1865
+ Unio tellicoensis Lea, 1872
+ Unio lenticularis Lea, 1872

Fusconaia barnesiana bigbyensis (Lea, 1841)
+ Unio estabrookianus Lea, 1845
+ Unio fassinans Lea, 1868
+ Margaron (Unio) fascinans Lea, 1870
+ Pleurobema fassinans var. rhomboidea Simpson, 1900

Fusconaia barnesiana tumescens (Lea, 1845)
+ Unio crudus Lea, 1871
+ Unio radiosus Lea, 1871

Fusconaia cor (Conrad, 1834)
+ Unio edgarianus Lea, 1840
+ Unio obuncus Lea, 1871
+ Unio andersonensis Lea, 1872

Fusconaia cor analoga nov. var.
+ Unio edgarianus Reeve, 1864

Fusconaia cuneolus (Lea, 1840)
+ Unio cuneatus Reeve, 1864

Fusconaia cuneolus appressa (Lea, 1871)
+ Unio tuscumbiensis Lea, 1871
+ Unio flavidus Lea, 1872

Fusconaia pilaris (Lea, 1840)
+ Unio globatus Lea, 1871
+ Quadrula andrewsii Marsh, 1902
+ Quadrula beauchampii Marsh, 1902

Fusconaia pilaris bursa-pastoris (Wright, 1896)

Fusconaia pilaris lesueuriana (Lea, 1840)
+ Quadrula flexuosa Simpson, 1900

Lampsilis fasciola Rafinesque, 1820
+ Unio multiradiatus Lea, 1829
+ Unio perradiatus Lea, 1858

Lampsilis luteola (Lam.)

Lampsilis orbiculata (Hildreth, 1828)

Lampsilis ovatus (Say, 1817)

Lampsilis ovatus ventricosa (Barnes, 1823)

Lampsilis teres (Raf.)

Lampsilis virescens (Lea, 1858)

Lasmigona (Sulcularia) badia (Rafinesque, 1831)
+ Margaritana holstonia Lea, 1838

Lasmigona (s.s.) costata (Rafinesque, 1820)
+ Alasmodonta rugosa Barnes, 1823

Lastena lata (Rafinesque, 1820)
+ Unio dehiscens Say, 1829

Lemiox rimosus (Rafinesque, 1831)
+ Unio caelatus Conrad, 1834

Lexingtonia dolabelloides (Lea, 1840)
+ Unio thorntonii Lea, 1857
+ Unio mooresianus Lea, 1857
+ Unio recurvatus Lea, 1871
+ Unio circumactus Lea, 1871
+ Unio subglobatus Lea, 1871

Lexingtonia dolabelloides conradi (Vanatta, 1915)
+ Unio maculatus Conrad, 1834

Medionidus plateolus (Rafinesque, 1831)
+ Unio conradicus Lea, 1834
+ Margaron (Unio) conradianus Lea, 1870

Nephronaias ligamentina gibba (Simpson, 1900)

Nephronaias pectorosa (Conrad, 1834)
+ Unio perdix Lea, 1834
+ Unio biangularis Lea, 1840
+ Unio biangulatus Lea, 1840

Obliquaria reflexa Rafinesque, 1820

Obovaria (s.s.) retusa (Lamarck, 1819)

Obovaria (s.s.) subrotunda (Rafinesque, 1820)
+ Unio circulus Lea, 1829

Obovaria (s.s.) subrotunda levigata (Rafinesque, 1820)
+ Unio lens Lea, 1831

Paraptera fragilis (Rafinesque, 1820)
+ Unio gracilis Barnes, 1823

Paraptera leptodon (Rafinesque, 1820)

Pegias fabula (Lea, 1836)

Plagiola lineolata (Rafinesque, 1820)
+ Unio securis Lea, 1829

Plethobasus cooperianus (Lea, 1834)

Plethobasus cyphyus (Rafinesque, 1820)

Plethobasus cyphyus compertus (Frierson, 1911)
+ Unio varicosus Lewis, 1871

Pleurobema obliqua (Lamarck, 1819)

Pleurobema obliqua catillus (Conrad, 1836)
+ Unio solidus Lea, 1838

Pleurobema obliqua coccineum (Conrad, 1836)

Pleurobema obliqua cordatum (Rafinesque, 1820)
+ Unio plenus Lea, 1840

Pleurobema obliqua rubrum (Rafinesque, 1820)
+ Pleurobema mytiloides Rafinesque, 1820
+ Unio pyramidatus Lea, 1831

Pleurobema oviforme (Conrad, 1834)
+ Unio ravenelianus Lea, 1834
+ Unio patulus Conrad, 1838
+ Unio lesleyi Lea, 1860
+ Unio ornatus Lea, 1861
+ Unio clinchensis Lea, 1867
+ Unio conasaugaensis Lea, 1872

Pleurobema oviforme argenteum (Lea, 1841)
+ Unio striatissimus J.G. Anthony, 1865
+ Unio planior Lea, 1868
+ Unio brevis Lea, 1872
+ Unio swordianus S.H. Wright, 1897
+ Pleurobema fassinans Ortmann, 1913

Pleurobema oviforme holstonense (Lea, 1840)
+ Unio mundus Lea, 1857
+ Unio tesserulae Lea, 1861
+ Unio pattinoides Lea, 1871
+ Unio acuens Lea, 1871
+ Unio lawii Lea, 1871
+ Unio bellulus Lea, 1872

Proptera alata (Say, 1817)

Quadrula cylindrica (Say, 1817)

Quadrula cylindrica strigillata (Wright, 1898)

Quadrula intermedia (Conrad, 1836)
+ Unio tuberosus Lea, 1840
+ Unio sparsus Lea, 1841

Quadrula metanevra (Rafinesque, 1820)

Quadrula pustulosa (Lea, 1831)
+ Obliquaria (Quadrula) bullata Rafinesque, 1820
+ Unio pernodosus Lea, 1845
+ Unio sphaericus Lea, 1868

Quadrula verrucosa (Rafinesque, 1820)
+ Unio conjugans B.H. Wright, 1899

Rotundaria tuberculata (Rafinesque, 1820)

Strophitus edentulus (Say, 1829)
+ Anodonta shaefferiana Lea, 1852

Toxolasma lividum Rafinesque, 1831
+ Unio moestus Lea, 1841
+ Unio cylindrellus Lea, 1868
+ Unio corvunculus Lea, 1868
+ Unio glans Lewis, 1871

Toxolasma pullus (Conrad, 1838)

Truncilla arcaeformis (Lea, 1831)

Truncilla biemarginata (Lea)

Truncilla capsæformis [sic] (Lea, 1834)
+ Truncilla florentina Ortmann, 1912

Truncilla florentina (Lea, 1857)

Truncilla haysiana (Lea, 1833)

Truncilla interrupta (Rafinesque, 1820)
+ Unio brevidens Lea, 1831

Truncilla lenior (Lea, 1843)

Truncilla lewisi Walker, 1910
+ Unio foliatus Lewis, 1871

Truncilla propinqua (Lea, 1857)

Truncilla stewardsoni (Lea, 1852)
+ Truncilla lewisii Walker, 1910

Truncilla torulosa (Rafinesque, 1820)
+ Amblema gibbosa Rafinesque, 1820
+ Unio perplexus Lea, 1831

Truncilla torulosa gubernaculum (Reeve, 1865)

Truncilla triquetra Rafinesque, 1820
+ Unio triangularis Barnes, 1823

Truncilla turgidula (Lea, 1858)
+ Unio deviatus Reeve, 1864

Truncilla walkeri Wilson & Clark, 1914