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

Caelatura Conrad, 1853
‘Conrad’ of Authors.
Conrad, 1853, Proc. Acad. Nat. Sci. 6: 267 [as ‘Cælatura’].
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 820 [as ‘Cælatura’].
Pallary, 1909, Mém. Inst. Égypte 6(1): 76.
Simpson, 1914, Descr. Cat. Naiades: 1019.
Germain, 1918, Bull. Mus. Hist. Nat. 24: 41.
Germain, 1919, Bull. Mus. Hist. Nat. 25: 122.
Germain, 1921, Faun. malac. Terr. e Fluv. Iles Mascareignes: 403.
Pallary, 1924, Mém. Inst. Égypte 7 (n.s.): 42.
Pilsbry & Bequaert, 1927, Bull. AMNH 53: 399.
Haas, 1927, Senckenbergiana 9: 21.
Haas, 1929, Senckenbergiana 11: 111.
Bloomer, 1932, Proc. Malac. Soc. London 20: 168.
Thiele, 1934, Handb. Syst. Weichtierk. 3: 1248.
Haas, 1936, Abh. Senckenb. Naturf. Ges. 431: 54.
Dartevelle & Schwetz, 1937, Ann. Soc. Roy. Zool. Belgique 68: 60.
Haas, 1940, Zool. Ser. Field Mus. Nat. Hist. 24: 140.
Modell, 1942, Arch. Moll. 74(5/6): 190.
Bloomer, 1946, Proc. Malac. Soc. London 27: 68.
Bloomer, 1949, Proc. Malac. Soc. London 27: 241.
Franc, 1949, J. de Conch. 9: 158.
Leloup, 1950, Res. Sci. Explor. Hydrob. Lac Tanganyika (1946-1947) 3: 40.
Mongin, 1963, Mém. Soc. Géol. France 96: 10.
Modell, 1964, Arch. Moll. 93: 116.
Mandahl-Barth, 1968, Expl. Hydrobiol. Bangweulu-Luapula 12: 51.
Starobogatov, 1970, Fauna Moll. Continent.: 64.
Fischer-Piette & Métivier, 1974, Bull. Mus. Hist. Nat. 133: 10.
Appleton, 1979, Ann. S. Afr. Mus. 77(9): 154.
Kenmuir, 1980, Trans. Zimbabwe Sci. Assoc. 60(2): 7.
Curtis & Appleton, 1987, Jour. SWA Sci. Soc. 40-41: 50.
Ibrahim et al., 1999, EEAA Nat. Biodiv. Unit (10): 74.
Millard, 2001, Class. Moll. (3): 1061.
(incorrect original spelling of Coelatura Conrad, 1853)

Lepidodesma Simpson, 1896
Simpson, 1896, Proc. U.S. Nat. Mus. 18: 311.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 586.
Simpson, 1914, Descr. Cat. Naiades: 237.
Type species: Unio languilati Heude, 1874 (sub. desig. by Simpson, 1900: 586) = Lepidodesma languilati

Micronaias Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 743.
Simpson, 1914, Descr. Cat. Naiades: 714.
(intro'd as sub-gen. of Unio Retzius, 1788)
Type species: Unio aratus Lea, 1843 (orig. desig.) = Micronaias arata

Plethobasus Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 764.
Simpson, 1914, Descr. Cat. Naiades: 805.
(intro'd as sub-gen. of Pleurobema Rafinesque, 1819)
Type species: Unio aesopus Green, 1827 (original designation) = Plethobasus cyphyus

Callonaia Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 867.
Simpson, 1914, Descr. Cat. Naiades: 1210.
Type species: Castalia duprei Récluz, 1842 (orig. desig.) = Callonaia duprei

Virgula Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 931.
Simpson, 1914, Descr. Cat. Naiades: 1454.
(intro'd as sub-gen. of Glabaris Gray, 1847)
Type species: Anodon ensiformis Wagner, 1827 (original designation) = Lamproscapha ensiformis

Castaliella Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 866.
Simpson, 1914, Descr. Cat. Naiades: 1208.
Type species: Castalia sulcata Krauss, 1849 (orig. desig.) = Castaliella sulcata

Bullella Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 672.
Simpson, 1914, Descr. Cat. Naiades: 508.
(intro'd as sub-gen. of Alasmidonta Say, 1818)
Type species: Margaritana arcula Lea, 1838 (orig. desig.) = Alasmidonta arcula

Pressodonta Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 667.
Simpson, 1914, Descr. Cat. Naiades: 495.
(intro'd as sub-gen. of Alasmidonta Say, 1818; new name for Hemiodon Swainson, 1840)
Type species: Unio calceolus Lea, 1828 (orig. desig.) = Pressodonta viridis

Cafferia Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 824.
Simpson, 1914, Descr. Cat. Naiades: 574.
(intro'd as sub-gen. of Nodularia Conrad, 1853)
Type species: Unio caffer Krauss, 1848 (orig. desig.) = Unio caffer

Rugifera Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 670.
Simpson, 1914, Descr. Cat. Naiades: 504.
(intro'd as sub-gen. of Alasmidonta Say, 1818)
Type species: Alasmidonta marginata Say, 1818 (orig. desig.) = Alasmidonta marginata

Pegias Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 660.
Simpson, 1914, Descr. Cat. Naiades: 472.
Type species: Margaritana fabula Lea, 1838 (orig. desig.) = Pegias fabula

Arcidens Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 661.
Simpson, 1914, Descr. Cat. Naiades: 475.
Type species: Alasmodonta confragosa Say, 1829 (orig. desig.) = Arcidens confragosus

Bulloideus Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 887.
Simpson, 1914, Descr. Cat. Naiades: 1286.
(intro'd as sub-gen. of Diplodon Wagner, 1827)
Type species: Unio bulloides Lea, 1859 (original designation) = Diplodon variabilis

Cyclomya Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 885.
Simpson, 1914, Descr. Cat. Naiades: 1278.
(intro'd as sub-gen. of Diplodon Wagner, 1827)
Type species: Unio funebralis Lea, 1860 (orig. desig.) = Diplodon funebralis

Laevirostris Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 894 [as ‘Lævirostris’].
Simpson, 1914, Descr. Cat. Naiades: 1308.
(intro'd as sub-gen. of Diplodon Wagner, 1827)
Type species: Unio stagnorum Dautzenberg, 1890 (orig. desig.) = Coelatura stagnorum

Pterosygna Simpson, 1900
‘Rafinesque’ of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 665.
Ortmann, 1909, Ann. Carnegie Mus. 5: 196.
Simpson, 1914, Descr. Cat. Naiades: 490.
Ortmann, 1914, Nautilus 28(4): 43.
Walker, 1918, Occ. Pap. Mus. Zool. Univ. Mich. (49): 2.
F.C. Baker, 1928, Bull. Wisconsin Geol. Nat. Hist. Survey 70(2): 147.
Haas, 1930, Senckenbergiana 12(6): 326.
(error for Pterosyna Rafinesque, 1831)

Pseudavicula Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 860.
Simpson, 1914, Descr. Cat. Naiades: 1190.
(homonym of Hudleston, 1890; renamed Prisodontopsis Tomlin, 1928)
Type species: Unio (Metaptera) johnstoni E.A. Smith, 1893 (orig. desig.) = Prisodontopsis aviculaeformis

Dromus Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 614.
Simpson, 1914, Descr. Cat. Naiades: 341.
(homonym of Selby, 1840 [Aves]; renamed Dromas Lindahl, 1906; renamed Conchodromus Haas, 1930)
Type species: Unio dromas Lea, 1834 (orig. desig.) = Dromus dromas

Medionidus Simpson, 1900
Simpson, 1900, Proc. Acad. Nat. Sci. 52: 77.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 588.
Simpson, 1914, Descr. Cat. Naiades: 245.
Type species: Unio conradicus Lea, 1834 (orig. desig.) = Medionidus conradicus

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

Pseudoon Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 601 [as ‘Pseudoön’].
Simpson, 1914, Descr. Cat. Naiades: 298.
(intro'd as sub-gen. of Obovaria Rafinesque, 1819)
Type species: Unio ellipsis Lea, 1828 (original designation) = Obovaria olivaria

Hyriana Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 872.
Simpson, 1914, Descr. Cat. Naiades: 1223.
(intro'd as sub-gen. of Prisodon Schumacher, 1817)
Type species: Unio ortonii Lea, 1868 (original designation) = Prisodon obliquus

Hemilastena Simpson, 1900
‘Agassiz’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 673.
‘Agassiz’ Simpson, 1914, Descr. Cat. Naiades: 323.
(reference to Hemilastena Agassiz, 1852)
Type species: Alasmodonta ambigua Say, 1825 (orig. desig.) = Simpsonaias ambigua

Spathopsis Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 857.
Simpson, 1914, Descr. Cat. Naiades: 1179.
(intro'd as sub-gen. of Lamellidens Simpson, 1900)
Type species: Anodonta guillaini Récluz, 1850 (orig. desig.) = Chambardia wahlbergi

Pilsbryoconcha Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 587.
Simpson, 1914, Descr. Cat. Naiades: 239.
Type species: Anodonta exilis Lea, 1838 (orig. desig.) = Pilsbryoconcha exilis

Cylindrica Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 807.
Simpson, 1914, Descr. Cat. Naiades: 958.
(homonym of Clessin, 1882 [Gastro.]; intro'd as sub-gen. of Nodularia Conrad, 1853; renamed Pericylindrica Tomlin, 1930)
Type species: Nodularia cylindrica Simpson, 1900 (orig. desig.) = Lanceolaria cylindrica

Pseudobaphia Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 849.
Simpson, 1914, Descr. Cat. Naiades: 1138.
(intro'd as sub-gen. of Parreysia Conrad, 1853)
Type species: Unio biesianus Heude, 1877 (orig. desig.) = Pseudobaphia biesiana

Discomya Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 802.
Simpson, 1914, Descr. Cat. Naiades: 937.
(intro'd as sub-gen. of Quadrula Rafinesque, 1820)
Type species: Unio radulosus Drouët & Chaper, 1892 (orig. desig.) = Discomya radulosa

Clione Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 583.
Simpson, 1914, Descr. Cat. Naiades: 223.
(error for Cleone Gistl, 1848)

Pletholophus Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 585.
Simpson, 1914, Descr. Cat. Naiades: 229.
(intro'd as sub-gen. of Cristaria Schumacher, 1817)
Type species: Symphynota discoidea Lea, 1834 (original designation) = Pletholophus tenuis

Crassitesta Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 586.
Simpson, 1914, Descr. Cat. Naiades: 236.
(intro'd as sub-gen. of Cristaria Schumacher, 1817)
Type species: Cristaria (Crassitesta) radiata Simpson, 1900 (original designation) = Cristaria radiata

Arcidopsis Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 861.
Simpson, 1914, Descr. Cat. Naiades: 1191.
Type species: Unio footei Theobald, 1876 (orig. desig.) = Arcidopsis footei

Trapezoideus Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 858.
Simpson, 1914, Descr. Cat. Naiades: 1180.
Type species: Unio foliaceus Gould, 1843 (orig. desig.) = Trapezoideus foliaceus

Caudiculatus Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 581.
Simpson, 1914, Descr. Cat. Naiades: 218.
(intro'd as sub-gen. of Hyriopsis Conrad, 1853)
Type species: Unio caudiculatus Martens, 1867 (orig. desig.) = Caudiculatus caudiculatus

Acuticosta Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 850.
Simpson, 1914, Descr. Cat. Naiades: 1139.
(intro'd as sub-gen. of Parreysia Conrad, 1853)
Type species: Unio chinensis Lea, 1868 (orig. desig.) = Acuticosta chinensis

Schistodesmus Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 803 [as ‘Shistodesmus’].
Simpson, 1914, Descr. Cat. Naiades: 939.
(correct name for Shistodesmus Simpson, 1900)
Type species: Unio (Dysnomia) lampreyanus Baird & Adams, 1867 (orig. desig.) = Schistodesmus lampreyanus

Lamprotula Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 796.
Simpson, 1914, Descr. Cat. Naiades: 913.
(intro'd as sub-gen. of Quadrula Rafinesque, 1820)
Type species: Chama plumbea Dillwyn, 1817 (orig. desig.) = Lamprotula plumbea

Gibbosula Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 804.
Simpson, 1914, Descr. Cat. Naiades: 941.
Type species: Mya crassa Wood, 1815 (original designation) = Gibbosula crassa

Ptychoderma Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 606.
Simpson, 1914, Descr. Cat. Naiades: 306.
(intro'd as sub-gen. of Plagiola Rafinesque, 1819)
Type species: Unio cyrenoides Philippi, 1847 (original designation) = Arotonaias cyrenoides

Lens Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 831.
Simpson, 1914, Descr. Cat. Naiades: 1067.
(intro'd as sub-gen. of Physunio Simpson, 1900)
Type species: Unio eximius Lea, 1856 (orig. desig.) = Lens eximius

Physunio Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 830.
Simpson, 1914, Descr. Cat. Naiades: 1062.
Type species: Unio gravidus Lea, 1856 (orig. desig.) = Physunio superbus

Pseudomutela Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 905.
Simpson, 1914, Descr. Cat. Naiades: 1362.
(intro'd as sub-gen. of Mutela Scopoli, 1777)
Type species: Mycetopus plicatus Sowerby, 1868 (orig. desig.) = Mutela dubia

Pseudospatha Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 577.
Simpson, 1914, Descr. Cat. Naiades: 202.
(new name for Burtonia Bourguignat, 1883)
Type species: Spatha tanganyicensis E.A. Smith, 1880 (orig. desig.) = Pseudospatha tanganyicensis

Rectidens Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 853.
Simpson, 1914, Descr. Cat. Naiades: 1157.
Type species: Unio prolongatus Drouët, 1894 (orig. desig.) = Rectidens sumatrensis

Virgus Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 851.
Simpson, 1914, Descr. Cat. Naiades: 1150.
Type species: Unio (Diplodon) beccarianus Tapparone Canefri, 1883 (orig. desig.) = Virgus beccarianus

Fusconaia Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 784.
Simpson, 1914, Descr. Cat. Naiades: 865.
(intro'd as sub-gen. of Quadrula Rafinesque, 1820)
Type species: Unio trigonus Lea, 1831 (orig. desig.) = Fusconaia flava

Radiatula Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 820.
Simpson, 1914, Descr. Cat. Naiades: 1016.
(intro'd as sub-gen. of Nodularia Conrad, 1853)
Type species: Unio crispisulcatus Benson, 1862 (orig. desig.) = Radiatula crispisulcata

Ptychorhynchus Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 850.
Simpson, 1914, Descr. Cat. Naiades: 1144.
Type species: Unio pfisteri Heude, 1874 (orig. desig.) = Ptychorhynchus pfisteri

Lamellidens Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 854.
Simpson, 1914, Descr. Cat. Naiades: 1165.
Type species: Unio marginalis Lamarck, 1819 (orig. desig.) = Lamellidens marginalis

Suborbiculus Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 835.
Simpson, 1914, Descr. Cat. Naiades: 1081.
(intro'd as sub-gen. of Pseudodon Gould, 1844)
Type species: Monocondylus orbicularis Morelet, 1866 (orig. desig.) = Pseudodon cambodjensis

Nasus Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 839.
Simpson, 1914, Descr. Cat. Naiades: 1099.
(homonym of Basilewski, 1855 [Pisces]; intro'd as sub-gen. of Pseudodon Gould, 1844; renamed Simpsonasus Bolotov et al., 2023)
Type species: Monocondylea nankingensis Heude, 1874 (orig. desig.) = Simpsonasus nankingensis

Triquetrana Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 869.
Simpson, 1914, Descr. Cat. Naiades: 1215.
(intro'd as sub-gen. of Hyria Lamarck, 1819)
Type species: Unio stevensii Lea, 1871 (original designation) = Triplodon corrugatus

Pilea Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 522.
Simpson, 1914, Descr. Cat. Naiades: 22.
(intro'd as sub-gen. of Truncilla Rafinesque, 1819)
Type species: Unio personatus Say, 1829 (original designation) = Epioblasma personata

Bineurus Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 839.
Simpson, 1914, Descr. Cat. Naiades: 1097.
(intro'd as sub-gen. of Pseudodon Gould, 1844)
Type species: Monocondyloea mouhotii Lea, 1863 (orig. desig.) = Bineurus mouhotii

Obovalis Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 840.
Simpson, 1914, Descr. Cat. Naiades: 1101.
(intro'd as sub-gen. of Pseudodon Gould, 1844)
Type species: Pseudodon loomisi Simpson, 1900 (orig. desig.) = Obovalis omiensis

Ptychobranchus Simpson, 1900
Simpson, 1900, Proc. Acad. Nat. Sci. 52: 79.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 612.
Simpson, 1914, Descr. Cat. Naiades: 332.
Type species: Unio phaseolus Hildreth, 1828 (orig. desig.) = Ptychobranchus fasciolaris

Cuneopsis Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 804.
Simpson, 1914, Descr. Cat. Naiades: 943.
Type species: Unio celtiformis Heude, 1874 (orig. desig.) = Cuneopsis celtiformis

Chamberlainia Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 582.
Simpson, 1914, Descr. Cat. Naiades: 219.
Type species: Unio hainesianus Lea, 1856 (orig. desig.) = Chamberlainia hainesiana

Christadens Simpson, 1914
Simpson, 1914, Descr. Cat. Naiades: 1154.
‘Simpson’ Thiele, 1934, Handb. Syst. Weichtierk. 3: 821 [1252].
(incorrect original spelling of Cristadens Simpson, 1914)

Jugosus Simpson, 1914
Simpson, 1914, Descr. Cat. Naiades: 357.
(intro'd as sub-gen. of Strophitus Rafinesque, 1820)
Type species: Strophitus wrightianus Walker, 1901 (original designation) = Alasmidonta wrightiana

Artonaias Simpson, 1914
‘von Martens’ of Authors.
Simpson, 1914, Descr. Cat. Naiades: 311.
H.B. Baker, 1922, Occ. Pap. Mus. Zool. Univ. Mich. (106): ??.
(error for Arotonaias Martens, 1900)

Cristadens Simpson, 1914
Simpson, 1914, Descr. Cat. Naiades: 1154.
(new name for Ctenodesma Simpson, 1900; correct name for Christadens Simpson, 1914)

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)

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)

Diplodon parallelipipedon d’Orbigny, 1846
‘Lea’ of Authors.
d’Orbigny, 1846, Voyage dans l’Amérique Méridionale 5: 609.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 884.
Corsi, 1900, Anais Mus. Nac. Montevideo 2: 447.
Simpson, 1914, Descr. Cat. Naiades: 1274-1275.
Haas, 1930, Senckenbergiana 12: 189.
Morretes, 1949, Arqu. Mus. Paranaense 7: 18.
Parodiz, 1968, Sterkiana 30: 8.
Mansur, 1970, Iheringia 39: 83.
Quintana, 1982, Rev. Mus. Argentino Zoológicas 11: 128.
Simone, 2006, Land. Freshw. Moll. Brazil.: 260.
(error for Unio parallelopipedon Lea, 1834)

Anodonta ohioensis Agassiz, 1852
‘Rafinesque’ of Authors.
Agassiz, 1852, Arch. Naturg. 18(1): 46.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 648.
Simpson, 1914, Descr. Cat. Naiades: 437.
Oesch, 1984, Missouri Naiades: 183 [as ‘Potamilus’].
(error for Anodonta (Lastena) ohiensis Rafinesque, 1820)

Unio planilaterus Lea, 1852
‘Conrad’ of Authors.
Lea, 1852, Synopsis Fam. Naiades: 32.
Lea, 1870, Synopsis Fam. Naiades: 51.
B.H. Wright, 1888, Check List N. Amer. Unionidae etc.: [4].
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 722.
Simpson, 1914, Descr. Cat. Naiades: 653.
(error for Unio planilateris Conrad, 1838)

Unio hippopaeus 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)

Unio sowerbyanus Küster, 1852
‘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)

Unio reevianus Conrad, 1853
‘Lea’ of Authors.
Conrad, 1853, Proc. Acad. Nat. Sci. 6: 256.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 538.
Simpson, 1914, Descr. Cat. Naiades: 74.
Utterback, 1916, Amer. Midl. Nat. 4(10): 449.
Frierson, 1927, Check List N. Amer. Naiades: 73.
Haas, 1969, Das Tierreich 88: 437.
R.I. Johnson, 1980, Bull. MCZ 149(2): 132.
Oesch, 1984, Missouri Naiades: 225.
Turgeon et al., 1988, Am. Fisher. Soc. Spec. Publ. (16): 31.
Williams et al., 1993, Fisheries 18(9): 12.
Turgeon et al., 1998, Am. Fisher. Soc. Spec. Publ. (26): 35.
Graf & Cummings, 2007, J. Moll. Studies 73: 305.
Bogan, 2010, FADA: [web].
Cummings & Graf, 2010, Ecol. Class. N. Amer. FW Inverts.: 376.
Haag, 2012, N. Amer. Freshw. Mussels: 71 [as ‘Lampsilis reeviana’].
(error for Unio reeveianus Lea, 1852)

Anodonta linneana Conrad, 1853
‘Lea’ of Authors.
Conrad, 1853, Proc. Acad. Nat. Sci. 6: 264.
Hanley, 1856, Cat. Rec. Bivalve Shells, Suppl.: 387.
Sowerby, 1870, Conch. Icon. 17: pl. 35, sp. 144.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 646.
Simpson, 1914, Descr. Cat. Naiades: 431.
Frierson, 1927, Check List N. Amer. Naiades: 14.
Haas, 1969, Das Tierreich 88: 364.
Parmalee & Bogan, 1998, The Freshwater Mussels of Tennessee: 206.
Watters et al., 2009, Freshw. Mussels OH: 260.
(error for Anodonta linnaeana Lea, 1852)

Unio hanleyanus Conrad, 1853
‘Lea’ of Authors.
Conrad, 1853, Proc. Acad. Nat. Sci. 6: 250.
Sowerby, 1866, Conch. Icon. 16: pl. 46, sp. 249.
B.H. Wright, 1888, Check List N. Amer. Unionidae etc.: [3].
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 759.
Simpson, 1914, Descr. Cat. Naiades: 780.
Frierson, 1927, Check List N. Amer. Naiades: 42, sp. 175.
Haas, 1969, Das Tierreich 88: 256.
Burch, 1975, Freshw. Unio. North Amer.: 13.
Turgeon et al., 1988, Am. Fisher. Soc. Spec. Publ. (16): 32.
Williams et al., 1993, Fisheries 18(9): 13.
Parmalee & Bogan, 1998, The Freshwater Mussels of Tennessee: 184.
Lydeard et al., 1999, Gulf Mex. Sci. 17(2): 129.
(error for Unio hanleyianus Lea, 1852)

Anodonta marryattana Conrad, 1853
‘Lea’ of Authors.
Conrad, 1853, Proc. Acad. Nat. Sci. 6: 264.
Sowerby, 1870, Conch. Icon. 17: pl. 28, sp. 111.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 642.
Simpson, 1914, Descr. Cat. Naiades: 422.
F.C. Baker, 1928, Bull. Wisconsin Geol. Nat. Hist. Survey 70(2): 157.
Haas, 1969, Das Tierreich 88: 365.
(error for Anodonta maryattana Lea, 1840)

Anodonta arcuata Martens, 1866
‘Cailliaud’ of Authors.
Martens, 1866, Malak. Blatt. 13: 11.
Jickeli, 1874, Nova Acta Dtsch. Akad. Naturf. 37(1): 265.
Servain, 1890, Bull. Soc. Malac. France 7: 316.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 899.
Kobelt, 1910, Abh. Senckenb. Naturf. Ges. 32: 87.
Simpson, 1914, Descr. Cat. Naiades: 1336.
Van Damme, 1984, Freshw. Moll. N. Africa (25): 68.
Mandahl-Barth, 1988, Studies on African Freshwater Bivalves: 73.
Ibrahim et al., 1999, EEAA Nat. Biodiv. Unit (10): 109.
(error for Anodonta arcuta Cailliaud, 1823)

Spatha cailliaudi Martens, 1866
‘von Martens’ of Authors.
Martens, 1866, Malak. Blatt. 13: 102.
Lea, 1870, Synopsis Fam. Naiades: 89.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 896.
Pallary, 1909, Mém. Inst. Égypte 6(1): 83.
Simpson, 1914, Descr. Cat. Naiades: 1316.
(error for Spatha caillaudi Martens, 1866)
Type(s): SYNTYPES MNHN_MP_0196, Le Nil.

Unio bissellianus Lea, 1870
‘Lea’ of Authors.
Lea, 1870, Synopsis Fam. Naiades: 50.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 743.
Simpson, 1914, Descr. Cat. Naiades: 714.
Frierson, 1927, Check List N. Amer. Naiades: 35.
Haas, 1969, Das Tierreich 88: 210.
(error for Unio bisselianus Lea, 1867)

Anodon kellettii Lea, 1870
‘Sowerby’ of Authors.
Lea, 1870, Synopsis Fam. Naiades: 84.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 588.
Preston, 1912, Rec. Ind. Mus. 7: 282.
Simpson, 1914, Descr. Cat. Naiades: 242.
Brandt, 1974, Arch. Moll. 105: 264.
(error for Anodon kelletii Sowerby, 1867)

Hyridella australis E.A. Smith, 1882
‘Lamarck’ of Authors.
E.A. Smith, 1882, J. Linn. Soc., Zool. 16: 309.
Ortmann, 1912, Nautilus 25(9): 100.
Simpson, 1914, Descr. Cat. Naiades: 1297.
Cotton & Gabriel, 1932, Proc. Roy. Soc. Victoria 44(2): 155, pl. 16, fig. 1.
(misidentified reference to Unio australis Lamarck, 1819)

Unio lawleyanus Kobelt, 1884
‘Gentiluomo’ of Authors.
Kobelt, 1884, Icon. Land- und Süssw.-Moll. 1: 65.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 683.
Simpson, 1914, Descr. Cat. Naiades: 533.
Haas, 1940, Zool. Ser. Field Mus. Nat. Hist. 24: 127.
(error for Unio lawleyianus Gentiluomo, 1868)

Unio hazelhurstianus B.H. Wright, 1888
‘Lea’ of Authors.
B.H. Wright, 1888, Check List N. Amer. Unionidae etc.: [3].
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 719 [as ‘Unio (sec. Elliptio) hazelhurstianus’].
Simpson, 1914, Descr. Cat. Naiades: 648.
Frierson, 1927, Check List N. Amer. Naiades: 29 [as ‘Elliptio (Elliptio) hazelhurstianus’].
Haas, 1969, Das Tierreich 88: 229 [as ‘Elliptio (Elliptio) hazelhurstianus’].
R.I. Johnson, 1970, Bull. MCZ 140(6): 333.
Burch, 1975, Freshw. Unio. North Amer.: 164.
(error for Unio hazlehurstianus Lea, 1858)

Anodonta arkansasensis B.H. Wright, 1888
‘Lea’ of Authors.
B.H. Wright, 1888, Check List N. Amer. Unionidae etc.: [6].
Call, 1895, Trans. Acad. Sci. St. Louis 7: 60.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 617.
Simpson, 1914, Descr. Cat. Naiades: 347.
Williams et al., 2008, Freshw. Mussels AL and Mobile Basin: 709.
Watters et al., 2009, Freshw. Mussels OH: 294.
(error for Anodonta arkansensis Lea, 1852)

Margaritana vignoniana Paetel, 1890
‘Bernardi’ of Authors.
Paetel, 1890, Cat. Conch.-Samml. 3: 174.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 902.
Kobelt, 1910, Abh. Senckenb. Naturf. Ges. 32: 87.
Simpson, 1914, Descr. Cat. Naiades: 1347.
Modell, 1964, Arch. Moll. 93: 84.
(error for Margaritana vignouana Bernardi, 1859)

Columba blainvilleana Ihering, 1890
‘Lea’ of Authors.
Ihering, 1890, Arch. Naturg. 56(1): 142.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 915.
Simpson, 1914, Descr. Cat. Naiades: 1400.
Haas, 1931, Senckenbergiana 13: 102.
Morretes, 1949, Arqu. Mus. Paranaense 7: 28.
Bonetto, 1963, Physis 24: 11.
Parodiz & Bonetto, 1963, Malacologia 1(2): 206.
Modell, 1964, Arch. Moll. 93: 81.
Figueiras, 1965, Comm. Soc. Malac. Uruguay 1(8): 252.
Haas, 1969, Das Tierreich 88: 577.
Haas, 1969, Treatise on Invert. Paleo: N465.
Mansur, 1970, Iheringia 39: 55.
Bonetto & Mansur, 1970, Acta Zool. Lilloana 27: 256.
Millard, 2001, Class. Moll. (3): 1074.
Simone, 2006, Land. Freshw. Moll. Brazil.: 289.
(error for Anodonta blainvilliana Lea, 1834)

Anodonta intermerata Paetel, 1890
‘Heude’ of Authors.
Paetel, 1890, Cat. Conch.-Samml. 3: 183.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 639.
Preston, 1912, Rec. Ind. Mus. 7: 284.
Simpson, 1914, Descr. Cat. Naiades: 405.
(error for Anodon intemerata Heude, 1885)

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)

Unio mitchelli Dall, 1895
Simpson in Dall, 1895, Proc. U.S. Nat. Mus. 18: 5.
Simpson, 1896, Proc. U.S. Nat. Mus. 18: 371, pl. 32, figs. 1-3.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 711.
Simpson, 1914, Descr. Cat. Naiades: 622.
Type(s): LECTOTYPE USNM_128364, Guadalupe R., Victoria Co., Texas.

Unio (sec. Elliptio) gibbosus var. delicatus Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 704.
Simpson, 1914, Descr. Cat. Naiades: 600.
(intro'd as intra-sp. of Unio gibbosus Barnes, 1823; homonym of Unio delicatus Lea, 1863)
Type(s): LECTOTYPE USNM_128797, St. Francis R., Greenway, Clay Co., Arkansas.

Tritogonia tuberculata var. obesa Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 609.
Simpson, 1914, Descr. Cat. Naiades: 320.
(intro'd as intra-sp. of Unio tuberculatus Barnes, 1823)
Type(s): LECTOTYPE USNM_125669, Neches River, Big Eddy, Texas.

Nodularia bohmi Simpson, 1900
‘Martens’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 823.
‘Martens’ Simpson, 1914, Descr. Cat. Naiades: 1036.
(error for Unio boehmi Martens, 1897)

Quadrula (Discomya) radulosa var. rhomboidea Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 803.
Simpson, 1914, Descr. Cat. Naiades: 938.
(intro'd as intra-sp. of Unio radulosus Drouët & Chaper, 1892)
Type(s): HOLOTYPE (MONOTYPY) USNM_126472A, Sebroeang, Borneo.

Unio navigoliformis Simpson, 1900
‘Lea’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 825.
‘Lea’ Simpson, 1914, Descr. Cat. Naiades: 575.
(error for Unio navigioliformis Lea, 1859)

Unio forscali Simpson, 1900
‘Parreyss’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 862. [nomen nudum]
‘Parreyss’ Simpson, 1914, Descr. Cat. Naiades: 1192. [nomen nudum]

Brazzaea jourdyi Simpson, 1900
‘Bourguignat’ of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 907.
Kobelt, 1910, Abh. Senckenb. Naturf. Ges. 32: 1374.
Simpson, 1914, Descr. Cat. Naiades: 1374.
(error for Brazzaea jouberti Bourguignat, 1886)

Brazzaea lavigerina Simpson, 1900
‘Bourguignat’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 907.
‘Bourguignat’ Simpson, 1914, Descr. Cat. Naiades: 1374.
(error for Brazzaea lavigeriana Bourguignat, 1886)

Anodonta dignota Simpson, 1900
‘Rafinesque’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 631 [as by Férussac], 648.
‘Rafinesque’ Simpson, 1914, Descr. Cat. Naiades: 387 [as by Férussac], 437.
(error for Anodonta (Flexiplis?) digonota Rafinesque, 1831)

Unio sula Simpson, 1900
‘Theobald’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 678.
‘Theobald’ Simpson, 1914, Descr. Cat. Naiades: 521.
(intro'd as syn of Unio laosensis Lea, 1863)

Quadrula (sec. Fusconaia) kirtlandiana var. minor Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 791.
Simpson, 1914, Descr. Cat. Naiades: 892.
(intro'd as intra-sp. of Unio kirtlandianus Lea, 1834)
Type(s): LECTOTYPE USNM_150155, Scott Co., Va.

Unio crocodilarum Simpson, 1900
‘Morelet’ of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 702.
Simpson, 1914, Descr. Cat. Naiades: 591.
Haas, 1929, Senckenbergiana 11: 332.
(error for Unio crocodilorum Morelet, 1849)

Quadrula (Lamprotula) ovata Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 801.
Simpson, 1914, Descr. Cat. Naiades: 933.
(new name for Unio vestitus Heude, 1883)

Unio penisatus Simpson, 1900
‘Crosse & Fischer’ of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 853.
Haas, 1912, Conch. Cab. 9 (pt. 2, h. 46): 135.
Simpson, 1914, Descr. Cat. Naiades: 1155.
(error for Unio pensitatus Fischer & Crosse, 1894)

Shistodesmus spinosus Simpson, 1900
Heude, 1883, Conch. Fluv. Nanking (8): pl. 59, fig. 115 [as ‘Unio vestitus’].
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 804.
Simpson, 1914, Descr. Cat. Naiades: 941.

Quadrula kirtlandiana Simpson, 1900
‘Conrad’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 791. [in part]
‘Conrad’ Simpson, 1914, Descr. Cat. Naiades: 891. [in part]
(misidentified reference to Unio kirtlandianus Lea, 1834)

Quadrula pyramidata Simpson, 1900
‘Lea’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 789. [in part]
Chadwick, 1906, unknown publication: 97.
‘Lea’ Simpson, 1914, Descr. Cat. Naiades: 889. [in part]
(reference to Unio pyramidatus Lea, 1831)

Nodularia (sec. Cafferia) jickeli Simpson, 1900
‘Phil.’ Jickeli, 1874, Nova Acta Dtsch. Akad. Naturf. 37(1): 276, pl. 11, figs. 3-3b [as ‘U. teretiusculus’]. [in part]
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 826.
Simpson, 1914, Descr. Cat. Naiades: 579 [as ‘Unio jickeli’].

Unio panucoensis Martens, 1900
‘von dem Busch’ of Authors.
Martens, 1900, Biol. Centr.-Amer., Moll.: 510.
Pilsbry, 1910, Proc. Acad. Nat. Sci. 61: 533.
Simpson, 1914, Descr. Cat. Naiades: 603.
Frierson, 1927, Check List N. Amer. Naiades: 82.
(error for Unio panacoensis Philippi, 1843)

Parreysia dumesleanus Simpson, 1900
‘Charmes’ of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 847.
Kobelt, 1910, Abh. Senckenb. Naturf. Ges. 32: 85.
Simpson, 1914, Descr. Cat. Naiades: 1130.
(error for Unio dumesnilianus Charmes, 1885)

Chambardia letourneuxiana Simpson, 1900
‘Bourguignat’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 902.
‘Bourguignat’ Simpson, 1914, Descr. Cat. Naiades: 1350.
(error for Chambardia letourneuxi Servain, 1890)

Diplodon (Hyridella s.s.) menziezi Simpson, 1900
‘Gray’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 889.
‘Gray’ Simpson, 1914, Descr. Cat. Naiades: 1290.
(error for Unio menziesii Gray, 1843)

Cristaria (Crassitesta) radiata Simpson, 1900
Heude, 1881, Conch. Fluv. Nanking (7): pl. 52, fig. 96 [as ‘Dipsas parvus’].
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 586.
Simpson, 1914, Descr. Cat. Naiades: 236.

Pleurobema avellana Simpson, 1900
Simpson, 1900, Proc. Acad. Nat. Sci. 52: 81, pl. 2, figs. 6-7.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 758.
Simpson, 1914, Descr. Cat. Naiades: 778.
Type(s): HOLOTYPE UMMZ_79653, Cahaba River, Alabama.

Nodularia (s.s.) fischeriania Simpson, 1900
‘Morlet’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 818.
‘Morlet’ Simpson, 1914, Descr. Cat. Naiades: 1009.
(error for Unio fischerianus Morlet, 1883)

Pleurobema patsaligensis Simpson, 1900
Simpson, 1900, Proc. Acad. Nat. Sci. 52: 82, pl. 2, fig. 1.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 761.
Simpson, 1914, Descr. Cat. Naiades: 788.
Type(s): HOLOTYPE USNM_150475, Little Patsaliga Creek, Alabama.

Unio platiolus Simpson, 1900
‘Rafinesque’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 744.
‘Rafinesque’ Simpson, 1914, Descr. Cat. Naiades: 731.
(error for Obliquaria plateolus Rafinesque, 1831)

Unio cistelliformis Simpson, 1900
‘Lea’ of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 716.
Simpson, 1914, Descr. Cat. Naiades: 641.
Frierson, 1927, Check List N. Amer. Naiades: 29.
Haas, 1969, Das Tierreich 88: 228.
R.I. Johnson, 1970, Bull. MCZ 140(6): 317.
Davis et al., 1981, Biol. J. Linn. Soc. 15: 135.
Davis, 1984, Malacologia 25(2): 631.
Williams et al., 1993, Fisheries 18(9): 11.
Haag, 2012, N. Amer. Freshw. Mussels: 73.
(error for Unio cistellaeformis Lea, 1863)

Mutela lavigerina Simpson, 1900
‘Bourguignat’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 906.
‘Bourguignat’ Simpson, 1914, Descr. Cat. Naiades: 1367.
(error for Mutela lavigeriana Bourguignat, 1886)

Glabaris (s.s.) philippianus Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 919.
Simpson, 1914, Descr. Cat. Naiades: 1416.
(new name for Anodonta subsinuata Philippi, 1869)

Spatha pangallicensis Simpson, 1900
‘Rochebrune’ of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 902.
Kobelt, 1910, Abh. Senckenb. Naturf. Ges. 32: 87.
Simpson, 1914, Descr. Cat. Naiades: 1350.
(error for Spatha pangallensis Rochebrune, 1882)

Monocondylaea tamsana Simpson, 1900
‘Dunker’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 913.
‘Dunker’ Simpson, 1914, Descr. Cat. Naiades: 1392.
(error for Monocondylaea tamsiana Dunker, 1858)

Unio zonata Simpson, 1900
‘Rafinesque’ of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 744.
Simpson, 1914, Descr. Cat. Naiades: 731.
Frierson, 1927, Check List N. Amer. Naiades: 90.
(error for Unio (Aximedia) zonalis Rafinesque, 1820)

Unio sacellus Simpson, 1900
‘Drouet & Chaper’ of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 818.
Simpson, 1914, Descr. Cat. Naiades: 1011.
Haas, 1924, Abh. Senckenb. Naturf. Ges. 38: 198.
(error for Unio saccellus Drouët & Chaper, 1892)

Unio ilqui Simpson, 1900
‘Soleilet’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 862.
‘Soleillet’ Simpson, 1914, Descr. Cat. Naiades: 1193.
(error for Unio ilqi Bourguignat, 1885)

Anodon chiquetana Simpson, 1900
‘d’Orbigny’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 928.
‘d’Orbigny’ Simpson, 1914, Descr. Cat. Naiades: 1441.
(error for Unio (Anodontes) chiquitana d’Orbigny, 1835)

Unio daniellii Simpson, 1900
‘Villa’ of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 891.
Simpson, 1914, Descr. Cat. Naiades: 1298.
(error for Unio danellii Villa, 1871)

Anodontes sirionis Simpson, 1900
‘d’Orbigny’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 918.
‘d’Orbigny’ Simpson, 1914, Descr. Cat. Naiades: 1407.
(error for Unio (Anodontes) sirionos d’Orbigny, 1835)

Glabaris trapesialis var. cygnaeformis Simpson, 1900
‘Pilsbry’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 925.
‘Pilsbry’ Simpson, 1914, Descr. Cat. Naiades: 1432.
(error for Glabaris trapesialis var. cygneiformis Pilsbry, 1896)

Pseudodon loomisi Simpson, 1900
Simpson, 1900, Proc. Acad. Nat. Sci. 52: 84, pl. 4, fig. 7.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 840.
Simpson, 1914, Descr. Cat. Naiades: 1101.

Unio phayresi Simpson, 1900
‘Theobald’ of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 842.
Simpson, 1914, Descr. Cat. Naiades: 1107.
Preston, 1915, Fauna Brit. India: 155.
(intro'd as syn of Mya corrugata Müller, 1774)

Unio pequottianus Simpson, 1900
‘Linsley’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 744.
‘Linsley’ Simpson, 1914, Descr. Cat. Naiades: 731.
(error for Unio pequottinus Linsley, 1845)

Unio calamitarum var. nephritica Martens, 1900
‘Crosse & Fischer’ of Authors.
Martens, 1900, Biol. Centr.-Amer., Moll.: 505.
Simpson, 1914, Descr. Cat. Naiades: 281.
(error for Unio calamitarum var. D nephretica Fischer & Crosse, 1894)

Truncilla (Scalenaria) sulcata var. delicata Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 520, footnote.
Simpson, 1914, Descr. Cat. Naiades: 16.
(intro'd as intra-sp. of Unio sulcatus Lea, 1829)
Type(s): SYNTYPE USNM_160853, Amherstburg, Michigan.

Pleurobema fassinans var. rhomboidea Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 762.
Simpson, 1914, Descr. Cat. Naiades: 798.
(intro'd as intra-sp. of Unio fassinans Lea, 1868)
Type(s): LECTOTYPE USNM_133331, Clinch R., Va.

Anodonta inaequivalvis Simpson, 1900
‘Lea’ of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 922.
Martens, 1900, Biol. Centr.-Amer., Moll.: 534.
Simpson, 1914, Descr. Cat. Naiades: 1423.
Mansur et al., 2020, [in] Damborenea, Rogers & Thorp, Freshw.Invert. Neotrop. 5: 424.
(error for Anodonta inaequivalva Lea, 1868)

Glabaris (s.s.) umbonatus Simpson, 1900
‘Gould’ Sowerby, 1870, Conch. Icon. 17: pl. 29, sp. 115, fig. 115b [as ‘Anodon ciconia’]. [in part]
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 926, footnote.
Simpson, 1914, Descr. Cat. Naiades: 1436.

Unio koseretzi Simpson, 1900
‘Clessin’ of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 894.
Simpson, 1914, Descr. Cat. Naiades: 1312.
Haas, 1930, Senckenbergiana 12: 182.
Bonetto, 1964, Physis 24(68): 327.
Parodiz, 1968, Sterkiana 30: 7.
Bonetto & Mansur, 1970, Acta Zool. Lilloana 27: 245.
(error for Unio koseritzi Clessin, 1888)

Ptychobranchus clintonensis Simpson, 1900
Simpson, 1900, Proc. Acad. Nat. Sci. 52: 79, pl. 5, fig. 3.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 613.
Simpson, 1914, Descr. Cat. Naiades: 335.
Type(s): HOLOTYPE USNM_124615, Little Red R., near Clinton, Ark.

Ptychorhynchus pfisteri var. inspiratus Simpson, 1900
‘Heude’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 851.
‘Heude’ Simpson, 1914, Descr. Cat. Naiades: 1145.
(error for Unio pfisteri var. insperatus Heude, 1877)

Glabaris (sec. Virgula) falsus Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 932, footnote.
Simpson, 1914, Descr. Cat. Naiades: 1456.
Type(s): HOLOTYPE (MONOTYPY) USNM_86711, Yuruari River.

Parreysia simpularis Simpson, 1900
‘Heude’ of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 845.
Simpson, 1914, Descr. Cat. Naiades: 1122.
Haas, 1924, Abh. Senckenb. Naturf. Ges. 38: 159.
Haas, 1969, Das Tierreich 88: 106.
He & Zhuang, 2013, Freshwater Bivalves China: 95.
(error for Unio simpularius Heude, 1884)

Lampsilis (Carunculina) texasensis var. compressus Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 564.
Simpson, 1914, Descr. Cat. Naiades: 150.
(intro'd as intra-sp. of Unio texasiensis Lea, 1857)

Lampsilis mearnsi Simpson, 1900
Simpson, 1900, Proc. Acad. Nat. Sci. 52: 75, pl. 1, fig. 4.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 564.
Simpson, 1914, Descr. Cat. Naiades: 150.
Type(s): LECTOTYPE USNM_151549, Elm Cr., 27 mi from Ft. Clark, Texas.

Unio barrandii Simpson, 1900
‘Dupuy’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 692.
‘Dupuy’ Simpson, 1914, Descr. Cat. Naiades: 555.
(error for Unio barraudii Bonhomme, 1840)

Unio taniatus Simpson, 1900
‘Paetel’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 541.
‘Paetel’ Simpson, 1914, Descr. Cat. Naiades: 83.
(error for Unio taeniatus Conrad, 1834)

Lamellidens canefrianus Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 857, footnote.
Simpson, 1914, Descr. Cat. Naiades: 1176.
(new name for Unio protensus Tapparone Canefri, 1889)

Lamellidens marginalis var. hanleyi Simpson, 1900
Hanley & Theobald, 1872, Conch. Indica (3): 20, pl. 44, fig. 4 [as ‘Unio marginalis var. corriana’].
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 855.
Simpson, 1914, Descr. Cat. Naiades: 1169.
(intro'd as intra-sp. of Unio marginalis Lamarck, 1819)

Unio billotianus Simpson, 1900
‘Charmes’ of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 847.
Kobelt, 1910, Abh. Senckenb. Naturf. Ges. 32: 84.
Simpson, 1914, Descr. Cat. Naiades: 1130.
Haas, 1936, Abh. Senckenb. Naturf. Ges. 431: 52.
Haas, 1969, Das Tierreich 88: 190.
Daget, 1998, Cat. Bivalves Africains: 65.
(error for Unio billottianus Charmes, 1885)

Nodularia (sec. Radiatula) lima Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 820.
Simpson, 1914, Descr. Cat. Naiades: 1018.
(new name for Unio radula Hanley, 1856)

Nephronaias reticulatus Simpson, 1900
Simpson, 1900, Proc. Acad. Nat. Sci. 52: 77, pl. 2, fig. 3.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 595.
Simpson, 1914, Descr. Cat. Naiades: 268.
Type(s): HOLOTYPE USNM_152964, Patook [=Patuca] River, Capunta, Honduras.

Unio houngdaranicus Simpson, 1900
‘Tapparone Canefri’ of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 844.
Preston, 1912, Rec. Ind. Mus. 7: 301.
Simpson, 1914, Descr. Cat. Naiades: 1116.
Preston, 1915, Fauna Brit. India: 167.
Prashad, 1922, Rec. Ind. Mus. 24: 101.
Subba Rao, 1989, Freshw. Moll. India: 183.
Graf & Cummings, 2007, J. Moll. Studies 73: 311.
Bogan, 2010, FADA: [25].
(error for Unio houngdarauicus Tapparone Canefri, 1889)

Unio faidherbi Simpson, 1900
‘Jousseaume’ of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 822.
Kobelt, 1910, Abh. Senckenb. Naturf. Ges. 32: 84.
Simpson, 1914, Descr. Cat. Naiades: 1027.
(error for Reneus faidherbei Jousseaume, 1886)

Unio nasutilus Simpson, 1900
‘Lea’ of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 735.
Simpson, 1914, Descr. Cat. Naiades: 691.
R.I. Johnson, 1970, Bull. MCZ 140(6): 334.
Burch, 1975, Freshw. Unio. North Amer.: 167.
Bogan, 2002, Workbook Key Freshw. Biv. NC: Table 5.
Perkins et al., 2017, Conserv. Genet. 18: 752.
Inoue et al., 2018, Invert. Syst. 32: Table S2.
(error for Unio nasutidus Lea, 1863)

Cyprogenia irrorata var. pusilla Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 610.
Simpson, 1914, Descr. Cat. Naiades: 328.
(intro'd as intra-sp. of Unio irroratus Lea, 1828)
Type(s): LECTOTYPE USNM_152004, Mammoth Cave (Green R.), Kentucky.

Leguminaia (sec. Leguminaia) locardi Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 653.
Simpson, 1914, Descr. Cat. Naiades: 449.
(new name for Pseudodon chantrei Locard, 1883)

Anodontites europae Simpson, 1900
‘Leach’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 624 [as ‘europæ’].
‘Leach’ Simpson, 1914, Descr. Cat. Naiades: 364 [as ‘europæ’].
(error for Anodontes europaea Leach, 1852)

Unio tahetianus Simpson, 1900
‘Catlow & Reeve’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 744.
‘Catlow & Reeve’ Simpson, 1914, Descr. Cat. Naiades: 731.
(error for Unio tahitianus Catlow & Reeve, 1845)

Quadrula (Lamprotula) kouangensis Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 799, footnote.
Simpson, 1914, Descr. Cat. Naiades: 923 [as ‘konangensis’].
(new name for Unio moreletianus Heude, 1883)

Margaritana etowahensis Simpson, 1900
‘Conrad’ of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 672.
Simpson, 1914, Descr. Cat. Naiades: 510.
Frierson, 1927, Check List N. Amer. Naiades: 19.
(error for Margaritana etowaensis Conrad, 1849)

Quadrula (Lamprotula) similaris Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 799.
Simpson, 1914, Descr. Cat. Naiades: 924.
(new name for Unio affinis Heude, 1875)

Unio granadensis Simpson, 1900
‘Conrad’ of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 598.
Simpson, 1914, Descr. Cat. Naiades: 289 [corrected in corrigenda].
Morrison, 1943, Nautilus 57: 15.
(error for Unio grandensis Conrad, 1855)

Unio guahybae Simpson, 1900
‘von Ihering’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 894. [nomen nudum]
‘von Ihering’ Simpson, 1914, Descr. Cat. Naiades: 1312. [nomen nudum]
Type(s): NOMEN NUDUM SMF_168335, Guahyba, Rio Grande do Sul, Brasil.

Unio aethiopiformis Simpson, 1900
‘von Ihering’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 894. [nomen nudum]
‘von Ihering’ Simpson, 1914, Descr. Cat. Naiades: 1312. [nomen nudum]
Type(s): NOMEN NUDUM MCZ_192369, Rio Camaquam, Rio Grande do Sul, Brazil.

Unio sebastanae Simpson, 1900
‘von Ihering’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 894. [nomen nudum]
‘von Ihering’ Simpson, 1914, Descr. Cat. Naiades: 1312. [nomen nudum]

Unio bythinicus Simpson, 1900
‘Kobelt’ of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 695.
Simpson, 1914, Descr. Cat. Naiades: 565.
Haas, 1940, Zool. Ser. Field Mus. Nat. Hist. 24: 141.
(error for Unio bithynicus Kobelt, 1893)

Diplodon frenzellii Simpson, 1900
‘Ihering’ of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 882.
Simpson, 1914, Descr. Cat. Naiades: 1264.
(error for Unio frenzelii Ihering, 1893)

Trapezoideus peninsularis Simpson, 1900
‘Lea’ Reeve, 1865, Conch. Icon. 16: pl. 28, sp. 142 [as ‘Unio sumatrensis’].
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 859, footnote.
Simpson, 1914, Descr. Cat. Naiades: 1186.
Type(s): TYPE BMNH_1964159, Sumatra.

Anodonta carthagena Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 922.
Simpson, 1914, Descr. Cat. Naiades: 1427.
(intro'd as syn of Anodonta trautwiniana Lea, 1852)

Unio idgi Simpson, 1900
‘Bourguignat’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 862.
‘Bourguignat’ Simpson, 1914, Descr. Cat. Naiades: 1193.
(error for Unio ilqi Bourguignat, 1885)

Lampsilis australis Simpson, 1900
Simpson, 1900, Proc. Acad. Nat. Sci. 52: 75, pl. 2, fig. 2.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 544.
Simpson, 1914, Descr. Cat. Naiades: 94.
Type(s): HOLOTYPE USNM_150473, Little Patsaliga Creek, Alabama.

Parreysia hypsiprimnus Simpson, 1900
‘von Martens’ of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 849.
Simpson, 1914, Descr. Cat. Naiades: 1136.
Haas, 1936, Abh. Senckenb. Naturf. Ges. 431: 68.
Woodward in Crowley et al., 1964, Annals Mus. R. Afr. Cent. 131: 47.
(error for Unio hypsiprymnus Martens, 1897)

Nodularia cylindrica Simpson, 1900
Schrenck, 1867, Reise Forsch. Amurlande 2: 694, pl. 27, figs. 1-3 [as ‘Unio grayanus Lea’].
Simpson, 1900, Proc. Acad. Nat. Sci. 52: 84 [as ‘cylindracea’].
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 807.
Simpson, 1914, Descr. Cat. Naiades: 958.
(correct name for Nodularia cylindracea Simpson, 1900)

Diplodon (s.s.) aureus Simpson, 1900
‘Swainson’ Küster, 1861, Conchyl. Cab. 9(2): 161, pl. 46, fig. 3 [as ‘Unio auratus’].
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 883.
Simpson, 1914, Descr. Cat. Naiades: 1268.

Spatha wissmani Simpson, 1900
‘von Martens’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 896.
‘von Martens’ Simpson, 1914, Descr. Cat. Naiades: 1315.
(error for Spatha wissmanni Martens, 1883)

Lampsilis brittsi Simpson, 1900
Simpson, 1900, Proc. Acad. Nat. Sci. 52: 76, pl. 5, figs. 1-2.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 533.
Simpson, 1914, Descr. Cat. Naiades: 58.
Type(s): HOLOTYPE USNM_152700, Little Niangua Riv., Camden Co., Mo.

Burtonia livingstonensis Simpson, 1900
‘Bourguignat’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 578.
‘Bourguignat’ Simpson, 1914, Descr. Cat. Naiades: 205.
(error for Burtonia livingstoniana Bourguignat, 1883)

Burtonia lavigerina Simpson, 1900
‘Bourguignat’ of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 577.
Simpson, 1914, Descr. Cat. Naiades: 204.
Pain & Woodward, 1968, Rev. Zool. Botan. Afr. 77: 213.
(error for Burtonia lavigeriana Bourguignat, 1886)

Unio dorbignyanus Simpson, 1900
‘Sowerby’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 866 [as ‘d’orbignyanus’].
‘Sowerby’ Simpson, 1914, Descr. Cat. Naiades: 1208 [as ‘d’orbignyanus’].
(error for Unio dorbignianus Sowerby, 1868)

Spatha (s.s.) lacustris Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 898.
Simpson, 1914, Descr. Cat. Naiades: 1330.
(new name for Spatha anceyi Ancey, 1894)
Type(s): HOLOTYPE MRAC_57521, N. Nyassa, Karonga.

Anodon javana Simpson, 1900
‘Sowerby’ of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 588.
Preston, 1912, Rec. Ind. Mus. 7: 282.
Simpson, 1914, Descr. Cat. Naiades: 242.
Haas, 1920, Conch. Cab. 9 (pt. 2, h. 52): 297.
Haas, 1969, Das Tierreich 88: 382.
(error for Anodon javona Sowerby, 1867)

Quadrula flexuosa Simpson, 1900
Simpson, 1900, Proc. Acad. Nat. Sci. 52: 83, pl. 2, fig. 8.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 790.
Simpson, 1914, Descr. Cat. Naiades: 887.

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)

Pleurobema argentea pannosa Simpson, 1900
Simpson, 1900, Proc. Acad. Nat. Sci. 52: 82.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 763.
Simpson, 1914, Descr. Cat. Naiades: 799.
(intro'd as intra-sp. of Unio argenteus Lea, 1841)

Pleurobema brevis subelliptica Simpson, 1900
Simpson, 1900, Proc. Acad. Nat. Sci. 52: 80.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 763 [as ‘subilliptica’].
Simpson, 1914, Descr. Cat. Naiades: 801.
(intro'd as intra-sp. of Unio brevis Lea, 1872)
Type(s): LECTOTYPE USNM_159952, Hardy, Ark.

Quadrula (sec. Rotundaria) granifera var. pusilla Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 795.
Simpson, 1914, Descr. Cat. Naiades: 906.
(intro'd as intra-sp. of Unio graniferus Lea, 1838)
Type(s): LECTOTYPE MCZ_20176, Green River, Kentucky.

Quadrula rudis Simpson, 1900
Simpson, 1900, Proc. Acad. Nat. Sci. 52: 82, pl. 3, fig. 2.
Simpson, 1914, Descr. Cat. Naiades: 910.
Type(s): HOLOTYPE (MONOTYPY) USNM_84210, Rio Taxtunilha, (tributary to the Rio de la Pasion), Guatemala.

Quadrula guatemalensis Simpson, 1900
Simpson, 1900, Proc. Acad. Nat. Sci. 52: 83, pl. 2, fig. 4.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 796.
Simpson, 1914, Descr. Cat. Naiades: 909.
Type(s): HOLOTYPE (MONOTYPY) USNM_128991, Usumacinta River, Guatemala.

Unio valentinus Simpson, 1900
‘Sowerby’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 692.
‘Sowerby’ Simpson, 1914, Descr. Cat. Naiades: 555.
(error for Unio valentianus Sowerby, 1866)

Unio averillii Simpson, 1900
“Wright” of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 560.
Simpson, 1914, Descr. Cat. Naiades: 138.
Frierson, 1927, Check List N. Amer. Naiades: 76.
R.I. Johnson, 1970, Bull. MCZ 140(6): 373.
R.I. Johnson, 1972, Bull. Fla. State Mus. 16(4): 237.
Burch, 1975, Freshw. Unio. North Amer.: 159.
(error for Unio averellii B.H. Wright, 1888)

Unio longitudinatus Simpson, 1900
‘Anton’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 862.
‘Anton’ Simpson, 1914, Descr. Cat. Naiades: 1193.
(error for Unio (s.s.) longedentatus Anton, 1839)

Spatha (Moncetia) lavigerina Simpson, 1900
‘Bourguignat’ of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 901.
Kobelt, 1910, Abh. Senckenb. Naturf. Ges. 32: 87.
Simpson, 1914, Descr. Cat. Naiades: 1346.
(error for Moncetia lavigeriana Bourguignat, 1886)

Anodonta wahlametensis Simpson, 1900
‘Lea’ of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 629.
Arnold, 1908, Proc. U.S. Nat. Mus. 34: 355.
Simpson, 1914, Descr. Cat. Naiades: 379.
Henderson, 1935, GSA, Spec. Pap. 3: 66.
Davis & Fuller, 1981, Malacologia 20: 219.
Mock et al., 2004, Molec. Ecol. 13: 1090.
(error for Anodonta wahlamatensis Lea, 1838)

Spatha (Moncetia) rochebruneana Simpson, 1900
‘Bourguignat’ of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 901.
Kobelt, 1910, Abh. Senckenb. Naturf. Ges. 32: 87.
Simpson, 1914, Descr. Cat. Naiades: 1346.
(error for Moncetia rochebruniana Bourguignat, 1886)

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.

Lampsilis (s.s.) binominatus Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 528.
Simpson, 1914, Descr. Cat. Naiades: 42.
(new name for Unio lineatus Lea, 1840)

Diplodon (s.s.) wagnerianum Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 877.
Simpson, 1914, Descr. Cat. Naiades: 1246 [as ‘wagnerianus’].
(new name for Diplodon ellipticum Wagner, 1827)

Lampsilis (sec. Eurynia) ligamentina var. gibbus Simpson, 1900
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 540.
Simpson, 1914, Descr. Cat. Naiades: 82.
(intro'd as intra-sp. of Unio ligamentina Lamarck, 1819)
Type(s): SYNTYPE USNM_160597, Black Rock, Arkansas.

Lampsilis (Proptera) lividus Simpson, 1900
‘Morelet’ Reeve, 1865, Conch. Icon. 16: pl. 22, sp. 101 [as ‘Unio testudineus’].
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 571.
Simpson, 1914, Descr. Cat. Naiades: 174.

Unio (sec. Lymnium) pseudonymus Simpson, 1900
‘Bourg.’ Kobelt, 1886, Icon. Land- und Süssw.-Moll. 2: 22, pl. 41, fig. 255 [as ‘U. hueti’].
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 694.
Simpson, 1914, Descr. Cat. Naiades: 560.

Diplodon websteri Simpson, 1902
Simpson, 1902, Nautilus 16: 30.
Simpson, 1914, Descr. Cat. Naiades: 1307.
Type(s): LECTOTYPE USNM_162342, Waiuku, New Zealand.

Lanceolaria acrorhyncha Haas, 1911
‘von Martens’ of Authors.
Haas, 1911, Conch. Cab. 9 (pt. 2, h. 43): 61.
Simpson, 1914, Descr. Cat. Naiades: 956.
Haas, 1969, Das Tierreich 88: 67.
Kil, 1976, Korean J. Limnol. 9(3-4): 29.
Habe, 1977, Mollusc. Japan: 115.
Park & Kwon, 1993, Korean J. Malac. 9(1): 46.
Kondo, 2008, Spec. Publ. Malac. Soc. Japan (3): 27.
(error for Unio acrorrhynchus Martens, 1894)

Ptychobranchus trinacrium Simpson, 1914
‘Lea’ Simpson, 1914, Descr. Cat. Naiades: 337.
(error for Unio trinacrus Lea, 1861)

Fossula braziliensis Simpson, 1914
‘von Ihering’ Simpson, 1914, Descr. Cat. Naiades: 1398.
‘von Ihering’ Haas, 1931, Senckenbergiana 13: 50.
(error for Fossula brasiliensis Ihering, 1910)

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)

Quadrula (sec. Fusconaia) coccinea var. magnalacustris Simpson, 1914
Simpson, 1914, Descr. Cat. Naiades: 884.
(intro'd as intra-sp. of Unio coccineus Conrad, 1836; new name for Quadrula (sec. Fusconaia) coccinea var. paupercula Simpson, 1900)
Type(s): LECTOTYPE USNM_133834, Niagara Riv., 3 mi above Falls.

Rectidens prestoni Simpson, 1914
Simpson, 1914, Descr. Cat. Naiades: 1159.
(new name for Unio perakensis Preston, 1912)

Lamellidens burmanus Simpson, 1914
Simpson, 1914, Descr. Cat. Naiades: 1170.
(new name for Unio pulcher Tapparone Canefri, 1889)

Unio flexicosus Simpson, 1914
‘Neumayr’ Simpson, 1914, Descr. Cat. Naiades: 721.
(error for Unio flexuosus Neumayr, 1899)

Unio bischoffi Simpson, 1914
‘von Ihering’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 894 [as ‘bishoffi’]. [nomen nudum]
‘von Ihering’ Simpson, 1914, Descr. Cat. Naiades: 1312. [nomen nudum]

Unio sancta-paulae Simpson, 1914
‘von Ihering’ Simpson, 1914, Descr. Cat. Naiades: 1312. [nomen nudum]

Unio (sec. Elliptio) mitchelli var. elongatus Simpson, 1914
Simpson, 1914, Descr. Cat. Naiades: 623.
(homonym of Unio elongata Lamarck, 1819; intro'd as intra-sp. of Unio mitchelli Dall, 1895)
Type(s): LECTOTYPE USNM_251917, Guadalupe River, near Kerrville, Texas.

Quadrula konangensis Simpson, 1914
‘Simpson, 1900’ Simpson, 1914, Descr. Cat. Naiades: 923.
(error for Quadrula (Lamprotula) kouangensis Simpson, 1900)

Unio diarbekerianus Simpson, 1914
Simpson, 1914, Descr. Cat. Naiades: 732.
(error for Unio diarbekirianus Kobelt, 1913)

Obovaria (s.s.) nux Simpson, 1914
Simpson, 1914, Descr. Cat. Naiades: 297.
Type(s): HOLOTYPE USNM_152968, Tombigbee Riv., Moscow, Ala.

Anodonta cilicia Simpson, 1914
‘Kobelt’ Simpson, 1914, Descr. Cat. Naiades: 371.
(error for Anodonta cilicica Kobelt & Rolle, 1895)

Diplodon (Hyridella s.s.) menziesi rugulosus Simpson, 1914
Simpson, 1914, Descr. Cat. Naiades: 1291.
(intro'd as intra-sp. of Unio menziesii Gray, 1843; new name for Unio rugatus Hutton, 1882)

Leguminaia nisibana Simpson, 1914
‘Kobelt’ Simpson, 1914, Descr. Cat. Naiades: 452.
(error for Leguminaia nisibina Kobelt, 1913)

Obovaria lens var. parva Simpson, 1914
Simpson, 1914, Descr. Cat. Naiades: 294.
(intro'd as intra-sp. of Unio lens Lea, 1831)
Type(s): LECTOTYPE USNM_150457, Duck Riv., Tenn.

Obovaria lens var. elongata Simpson, 1914
Simpson, 1914, Descr. Cat. Naiades: 294.
(intro'd as intra-sp. of Unio lens Lea, 1831)

Unio (Micronaias) fallaciosus Simpson, 1914
Simpson, 1914, Descr. Cat. Naiades: 715.
Type(s): HOLOTYPE (MONOTYPY) USNM_73062, Lake Nicaragua, Nicaragua.

Diplodon (s.s.) semigranosus Simpson, 1914
Simpson, 1914, Descr. Cat. Naiades: 1252.
Type(s): SYNTYPE USNM_128790, Rio Tiete, near Ponte Grande, Sao Paulo, Brazil.

Unio nasululus Simpson, 1914
Simpson, 1914, Descr. Cat. Naiades: 691.
(error for Unio nasutulus Lea, 1866)

Burtonia magnipica Simpson, 1914
‘Bourguignat’ Simpson, 1914, Descr. Cat. Naiades: 204.
(error for Burtonia magnifica Bourguignat, 1886)

Quadrula (sec. Fusconaia) chunii var. nasuta Simpson, 1914
Simpson, 1914, Descr. Cat. Naiades: 877.
(intro'd as intra-sp. of Unio chunii Lea, 1861)

Diplodon (s.s.) suppositus Simpson, 1914
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 877. [nomen nudum]
Simpson, 1914, Descr. Cat. Naiades: 1245.
Type(s): SYNTYPE USNM_162374, Parana, Brazil.

Diplodon (s.s.) santamariae Simpson, 1914
Simpson, 1914, Descr. Cat. Naiades: 1270 [as ‘santa-mariae’].
Type(s): SYNTYPE USNM_162383, Rio Itapuca, Sta Catherina, Brazil.

Diplodon (s.s.) trivialis Simpson, 1914
Simpson, 1914, Descr. Cat. Naiades: 1250.
Type(s): SYNTYPE USNM_162409, Taboticabal [= Jaboticabal], Sao Paulo, Brazil.

Diplodon (s.s.) perplexus Simpson, 1914
Simpson, 1914, Descr. Cat. Naiades: 1248.
Type(s): SYNTYPE USNM_150389, Maldonado, Uruguay.

Lampsilis (Eurynia) subrostrata var. furva Simpson, 1914
Simpson, 1914, Descr. Cat. Naiades: 100.
(intro'd as intra-sp. of Unio subrostratus Say, 1831)
Type(s): LECTOTYPE USNM_126921, Lake at Warsaw, Indiana.

Quadrula (sec. Fusconaia) wrightii Simpson, 1914
Simpson, 1914, Descr. Cat. Naiades: 868.

Quadrula (Rotundaria) quadrata Simpson, 1914
Simpson, 1914, Descr. Cat. Naiades: 911.
Type(s): LECTOTYPE USNM_128996, Usumacinta River, Guatemala.

Quadrula (Rotundaria) profunda Simpson, 1914
Simpson, 1914, Descr. Cat. Naiades: 907.
Type(s): HOLOTYPE (MONOTYPY) USNM_128987, Usumacinta River, Guatemala.

Diplodon (s.s.) iheringi Simpson, 1914
‘Clessin’ Simpson, 1900, Proc. U.S. Nat. Mus. 22: 894. [nomen nudum]
‘Clessin’ Simpson, 1914, Descr. Cat. Naiades: 1272.
Type(s): SYNTYPES SMF_11312, Rio Guahyba, Rio Gr. do Sul, Bras.

Lampsilis (s.s.) ventricosa var. lurida Simpson, 1914
Simpson, 1914, Descr. Cat. Naiades: 41.
(intro'd as intra-sp. of Unio ventricosus Barnes, 1823)
Type(s): TYPE USNM_29958, Devil’s Lake, Lenawee Co., Mich.

Anodontites (s.s.) trigonus var. pallescens Simpson, 1914
Simpson, 1914, Descr. Cat. Naiades: 1442.
(intro'd as intra-sp. of Anodon trigonus Wagner, 1827)
Type(s): HOLOTYPE (MONOTYPY) USNM_86731, Amazon River.

Diplodon (s.s.) mimus Simpson, 1914
Simpson, 1914, Descr. Cat. Naiades: 1249.
Type(s): SYNTYPE USNM_162425, Iguape, Brazil.

Quadrula (sec. Fusconaia) castanea Simpson, 1914
Simpson, 1914, Descr. Cat. Naiades: 877.
Type(s): LECTOTYPE USNM_159959, Tombigbee R., Moscow, Ala.

Lampsilis (Eurynia) ligamentina var. nigrescens Simpson, 1914
Simpson, 1914, Descr. Cat. Naiades: 82.
(intro'd as intra-sp. of Unio ligamentina Lamarck, 1819)
Type(s): LECTOTYPE USNM_150410, Kankakee R., Ill.

Diplodon (Cyclomya s.s.) fontainianus var. deceptus Simpson, 1914
Simpson, 1914, Descr. Cat. Naiades: 1281.
(intro'd as intra-sp. of Unio fontainiana d’Orbigny, 1835)

Lampsilis (Eurynia) higginsii var. grandis Simpson, 1914
Simpson, 1914, Descr. Cat. Naiades: 78.
(intro'd as intra-sp. of Unio higginsii Lea, 1857)

Unio pygamaeus Simpson, 1914
‘Lea’ Simpson, 1914, Descr. Cat. Naiades: 649.
(error for Unio pygmaeus Lea, 1852)

Alasmidonta (Bullella) arcula (Lea, 1838)

Alasmidonta (Bullella) triangulata (Lea, 1858)

Alasmidonta (Pressodonta) calceolus (Lea, 1830)
+ Alasmodonta truncata Conrad, 1834
+ Margaritana deltoidea Lea, 1838

Alasmidonta (Pressodonta) collina (Conrad, 1836)

Alasmidonta (Pressodonta) diversa (Conrad, 1856)

Alasmidonta (Pressodonta) georgiana (Lea, 1859)
+ Margaritana etowahensis Lea, 1858
+ Alasmodonta impressa J.G. Anthony, 1865

Alasmidonta (Pressodonta) heterodon (Lea, 1829)

Alasmidonta (Pressodonta) holstonia (Lea, 1838)
+ Unio holstonianus Hanley, 1843
+ Margaritana holstoniana Küster, 1862
+ Unio holstonianus Sowerby, 1868
+ Unio striatus Sowerby, 1868

Alasmidonta (Pressodonta) minor (Lea, 1845)

Alasmidonta (Rugifera) marginata Say, 1819
+ Alasmodonta truncata Lea, 1836
+ Margaritana marginata Küster, 1862

Alasmidonta (Rugifera) raveneliana (Lea, 1834)
+ Unio swananoensis Hanley, 1843

Alasmidonta (Rugifera) varicosa (Lamarck, 1819)
+ Unio cariosa Lamarck, 1819
+ Unio rugulosus Wood, 1828
+ Alasmodon corrugata De Kay, 1843

Alasmidonta (s.s.) undulata (Say, 1817)
+ Unio glabratus Sowerby & Sowerby, 1821
+ Unio hians Valenciennes, 1827
+ Alasmodonta sculptilis Say, 1829
+ Uniopsis radiata Swainson, 1840
+ Uniopsis mytiloides Swainson, 1840
+ Unio swainsoni Sowerby, 1868

Alasmidonta atropurpureum (Rafinesque, 1831)

Alasmidonta badium (Rafinesque, 1831)

Alasmidonta etowahensis [sic] (Conrad, 1849)

Alasmidonta hians (Rafinesque, 1831)

Alasmidonta papyraceum (Rafinesque, 1831)

Alasmidonta scriptum (Rafinesque, 1831)

Alasmidonta viridis (Rafinesque, 1831)

Anodonta anatinus (Sowerby, 1836)

Anodonta arcaeformis (Heude, 1877)

Anodonta arcaeformis var. flavotincta von Martens, 1905

Anodonta aureus Paetel, 1890

Anodonta bealei Lea, 1863

Anodonta beringiana Middendorff, 1851
+ Anodonta youkanensis Lea, 1867
+ Anodonta youconensis Lea, 1867
+ Anodonta youcanensis Lea, 1867

Anodonta brandti Drouet, 1888

Anodonta californiensis Lea, 1852

Anodonta calipygos Kobelt, 1879

Anodonta callifera von Martens, 1860

Anodonta cataracta Say, 1817
+ Anodonta fluviatilis Bosc, 1801
+ Mytilus marginatus Eaton, 1826
+ Anodonta digonota Ferussac, 1835
+ Anodonta virgulata Lea, 1857
+ Anodonta williamsii Lea, 1862
+ Anodonta tryonii Lea, 1862

Anodonta chantrei Bourguignat, 1883

Anodonta chinensis Paetel, 1890

Anodonta cilicia [sic] Kobelt

Anodonta coarctata Anton, 1839
+ Anodonta chapalensis Crosse & Fischer, 1893

Anodonta cochlearis (Sowerby, 1870)

Anodonta cornea Philippi, 1848

Anodonta corpulenta Cooper, 1834

Anodonta couperiana Lea, 1840
+ Anodonta couperiana Lea, 1840
+ Anodonta cooperiana Paetel, 1890

Anodonta curvata Jay, 1839

Anodonta cygnea (Linnaeus, 1758)
+ Mytilus radiatus Müller, 1774
+ Mytilus zellensis Gmelin, 1791
+ Mytilus stagnalis Gmelin, 1791
+ Anodonta cygnaea Poiret, 1801
+ Anodonta variabilis Draparnaud, 1801
+ Mytilus avonensis Montagu, 1803
+ Mytilus avoensis Turton, 1807
+ Mytilus fucatus Dillwyn, 1817
+ Anodonta sulcata Lamarck, 1819
+ Anodonta intermedia Lamarck, 1819
+ Anodonta cellensis Pfeiffer, 1821
+ Mytilus incrassatus Sheppard, 1821
+ Mytilus macula Sheppard, 1821
+ Anodon paludosus Turton, 1822
+ Anodonta ventricosa C. Pfeiffer, 1825
+ Anodonta minima Millet, 1831
+ Anodonta oblonga Millet, 1831
+ Anodonta attenuata Held, 1836
+ Anodonta luxata Held, 1837
+ Anodonta exulcerata Porro, 1838
+ Anodonta callosa Küster, 1839
+ Anodonta tenella Küster, 1842
+ Anodonta cariosa Küster, 1842
+ Anodonta arealis Küster, 1842
+ Anodonta charpentierii Küster, 1842
+ Anodonta anserirostris Küster, 1842
+ Anodonta inornata Küster, 1842
+ Anodonta tumida Küster, 1842
+ Anodonta subluxata Küster, 1842
+ Anodonta sondermannii Küster, 1842
+ Anodonta opalina Küster, 1842
+ Anodonta nilssonii Küster, 1842
+ Anodonta rossmassleriana Dupuy, 1843
+ Anodonta coarctata Potiez & Michaud, 1844
+ Anodonta elongata Potiez & Michaud, 1844
+ Anodonta glabra Stabile, 1845
+ Anodonta lusitana Morelet, 1845
+ Anodonta regularis Morelet, 1845
+ Anodonta macilenta Morelet, 1845
+ Anodonta ranarum Morelet, 1845
+ Anodonta milletii Ray & Drouët, 1848
+ Anodonta gratelupeana Gassies, 1849
+ Anodonta dupuyii Ray & Drouët, 1849
+ Anodonta rayii Dupuy, 1849
+ Anodonta normandi Dupuy, 1849
+ Anodonta subponderosa Dupuy, 1849
+ Anodonta arelatensis Dupuy, 1850
+ Anodonta moulinsiana Dupuy, 1850
+ Anodonta scaldiana Dupuy, 1850
+ Anodonta idrina Spinelli, 1851
+ Anodontes europaea Leach, 1852
+ Anodonta parvula Drouët, 1852
+ Anodonta atrovirens Stabile, 1859
+ Anodonta helvetica Bourguignat, 1862
+ Anodonta psammita Bourguignat, 1862
+ Anodonta melinia Bourguignat, 1865
+ Anodonta elachista Bourguignat, 1865
+ Anodonta pictetiana Brot, 1867
+ Anodon simplicidus Sowerby, 1867

Anodonta cygnea var. anatina (Linnaeus, 1758)
+ Anodonta complanata Rossmässler, 1835

Anodonta cygnea var. piscinalis Nilsson, 1823

Anodonta cygnea var. ponderosa Pfeiffer, C., 1825

Anodonta cygnea var. rostrata Rossmässler, 1836

Anodonta dakota Frierson, 1910

Anodonta dalei Lesson, 1844

Anodonta danielsii Lea, 1858

Anodonta dariensis Lea, 1858

Anodonta dejecta Lewis, 1875
+ Anodonta mearnsiana Simpson, 1893

Anodonta digonota Rafinesque, 1831

Anodonta doliaris Lea, 1863
+ Anodonta dolearis Lea, 1863

Anodonta doliolum (Heude, 1878)

Anodonta euscaphys (Heude, 1879)

Anodonta exilior Lea, 1871
+ Anodonta chalcoensis Crosse & Fischer, 1893

Anodonta fenouilii (Heude, 1878)

Anodonta fluminea (Heude, 1877)
+ Anodon torrentis Heude, 1878

Anodonta fragilis Fitzinger, 1833

Anodonta gallandi Bourguignat, 1880

Anodonta gibbosa Say, 1824

Anodonta gibbosa var. dunlapiana Lea, 1842

Anodonta globosa Lea, 1841
+ Anodon nopalatensis Sowerby, 1867

Anodonta globosula (Heude, 1878)

Anodonta grandis Say, 1829
+ Anodonta ovata Lea, 1838
+ Anodonta salmonia Lea, 1838
+ Anodonta lewisii Lea, 1857

Anodonta grandis var. benedictensis (Lea, 1834)
+ Anodonta cultrata Lea, 1852
+ Margaron (Anodonta) benedictii Lea, 1870

Anodonta grandis var. footiana Lea, 1840
+ Anodonta maryattiana Lea, 1840
+ Anodonta maryattana Lea, 1840
+ Anodonta sulcata Küster, 1842
+ Anodonta nilssonii Küster, 1842
+ Anodonta marryattana Conrad, 1853
+ Anodon imbricata J.G. Anthony, 1865
+ Anodon subinflata J.G. Anthony, 1865
+ Anodon edentulus Sowerby, 1867
+ Anodonta houghtonensis DeCamp, 1881

Anodonta grandis var. gigantea Lea, 1834 [sic]
+ Anodonta plana Lea, 1834
+ Anodonta declivis Conrad, 1834
+ Anodonta decora Lea, 1838
+ Anodonta harpethensis Lea, 1840
+ Anodon subangulata J.G. Anthony, 1865
+ Anodon opalina J.G. Anthony, 1865
+ Anodon mcnielii J.G. Anthony, 1866
+ Anodon inornata J.G. Anthony, 1866
+ Anodon ovata Sowerby, 1869

Anodonta grandis var. leonensis Lea, 1862

Anodonta hallenbeckii Lea, 1858
+ Anodonta gesnerii Lea, 1858
+ Anodonta gessneri Paetel, 1890

Anodonta harlandi Baird & Adams, 1867
+ Anodon pumila Heude, 1879
+ Anodon limosa Heude, 1880
+ Anodon minuta Heude, 1880
+ Anodon pulchella Heude, 1881

Anodonta henryana Lea, 1857
+ Anodonta henryiana Lea, 1857

Anodonta heudei Neumayr, 1899

Anodonta hockingensis ‘Moores’ Call, 1880

Anodonta imbecillis Say, 1829
+ Anodonta incerta Lea, 1834
+ Anodon horda Gould, 1855
+ Anodonta hordeum Paetel, 1890

Anodonta implicata Say, 1829
+ Anodonta newtonensis Lea, 1838
+ Anodonta newtoniensis Lea, 1838
+ Anodonta excurvata De Kay, 1843
+ Anodonta housatonica Gould, 1848

Anodonta impura Say, 1829

Anodonta inflata Rafinesque, 1831

Anodonta japonica von Martens in Clessin, 1874
+ Anodonta cellensis Kobelt, 1879
+ Anodonta kobelti Ihering, 1893
+ Anodonta haconensis Ihering, 1893

Anodonta jourdyi Morlet, 1886

Anodonta kennerlyi Lea, 1860

Anodonta kennicottii Lea, 1861
+ Anodonta simpsoniana Lea, 1861

Anodonta laminata Rochebrune, 1882

Anodonta lauta von Martens, 1877
+ Anodonta woodiana Kobelt, 1879

Anodonta lauta var. rostrata Kobelt, 1879

Anodonta lauta var. tumens (Haas, 1910)

Anodonta linneana [sic] Lea, 1852

Anodonta lucasi DeShayes, 1848
+ Anodonta embia Bourguignat, 1864

Anodonta lucida (Heude, 1878)

Anodonta lugubris Say, 1829

Anodonta lurulenta Morelet, 1849

Anodonta marginata Say, 1817
+ Anodonta fragilis Lamarck, 1819
+ Anodonta lacustris Lea, 1857
+ Anodon flava J.G. Anthony, 1865
+ Anodon pallida J.G. Anthony, 1865
+ Anodon glandulosa J.G. Anthony, 1865
+ Anodon irisans J.G. Anthony, 1865
+ Anodon hordeum Sowerby, 1867
+ Anodonta subcarinata Currier, 1867
+ Anodon subcylindracea Sowerby, 1867
+ Anodon exilis Sowerby, 1870
+ Anodon pholadiformis Sowerby, 1870

Anodonta martensii Clessin, 1876

Anodonta micans (Anthony, J.G., 1865)

Anodonta numidica Bourguignat, 1864
+ Anodonta lucasii Deshayes, 1847
+ Anodonta letourneuxi Bourguignat, 1864

Anodonta nuttalliana Lea, 1838
+ Anodonta triangularis Trask, 1854

Anodonta nuttalliana var. idahoensis Hemphill, 1891

Anodonta ohiensis Rafinesque, 1820

Anodonta opaca Lea, 1852

Anodonta oregonensis Lea, 1838
+ Anodon cognata Gould, 1850

Anodonta ovata Stark, 1822

Anodonta pepiniana Lea, 1838
+ Anodonta dallasiana Lea, 1863

Anodonta pictus (Swainson, 1841)

Anodonta polymorpha ‘Küster’ Lea, 1870

Anodonta radiata (Valenciennes, 1824)

Anodonta recurvirostra Lea, 1870

Anodonta retteri Drouet, 1899

Anodonta richardsoni von Martens, 1900

Anodonta richthofeni Neumayr, 1899

Anodonta rivularis (Heude, 1877)

Anodonta sedakowi Siemaschko, 1848

Anodonta somersi ‘Moore ms’ Call, 1880

Anodonta stewartiana Lea, 1834
+ Anodonta virens Lea, 1852

Anodonta subcircularis Clessin, 1873

Anodonta subgibbosa (Anthony, J.G., 1866)
+ Margaron (Anodonta) subglobosa Lea, 1870

Anodonta suborbiculata Say, 1831

Anodonta sulcosa Adams & Adams, 1857

Anodonta tabascensis Morelet, 1884
+ Anodonta tabascoensis Simpson, 1900

Anodonta teres Conrad, 1834

Anodonta texasensis Lea, 1859

Anodonta triangularis (Sowerby, 1870)

Anodonta trigona Held, 1836

Anodonta truncata ‘Kuster, 1866’ [sic]

Anodonta tunizana Morelet, 1864

Anodonta undulifera Clessin, 1876

Anodonta vescoiana Bourguignat, 1856
+ Anodonta vescoiana var. mesopotamica Mousson, 1874
+ Anodonta schlaeflii Mousson, 1874
+ Anodonta schlaflii Simpson, 1900

Anodonta viridis Adams & Adams, 1857

Anodonta wahlametensis [sic] Lea, 1838
+ Anodonta rotundovata Trask, 1854
+ Anodon rostratus Sowerby, 1867
+ Anodonta laosensis Fischer, 1891

Anodonta woodiana (Lea, 1834)
+ Symphynota magnifica Lea, 1834
+ Anodon rotundatus Swainson, 1841
+ Anodon gibbum Cantor, 1842
+ Anodonta aurata Küster, 1853
+ Anodon tricostatus Sowerby, 1870
+ Anodonta edulis Heude, 1874
+ Anodon securiformis Heude, 1877
+ Anodon nigricans Heude, 1877
+ Anodon piscatorum Heude, 1878
+ Anodon elliptica Heude, 1878
+ Anodon fusca Heude, 1878
+ Anodon friniana Heude, 1878
+ Anodon joreti Heude, 1878
+ Anodon striata Heude, 1878
+ Anodon pacifica Heude, 1878
+ Anodon tumida Heude, 1879
+ Anodon subtetragona Heude, 1879
+ Anodon lineata Heude, 1879
+ Anodon irregularis Heude, 1879
+ Anodon melanochlorea Heude, 1879
+ Anodon agricolarum Heude, 1879
+ Anodon mingorum Heude, 1879
+ Anodon bigibba Heude, 1880
+ Anodon despecta Heude, 1880
+ Anodon obtusa Heude, 1880
+ Anodon navicella Heude, 1880
+ Anodon orbicularis Heude, 1880
+ Anodon livida Heude, 1880
+ Anodon castanea Heude, 1880
+ Anodon succinea Heude, 1880
+ Anodon cheniana Heude, 1880
+ Anodon scaphydium Heude, 1880
+ Anodon puerorum Heude, 1880
+ Anodon indecora Heude, 1880
+ Anodon sorini Heude, 1881
+ Anodon rosea Heude, 1881
+ Anodon aubryi Heude, 1881
+ Anodon confusa Heude, 1881
+ Anodon obturata Heude, 1881
+ Anodon rubella Heude, 1881
+ Anodon florida Heude, 1881
+ Anodonta retusa Heude, 1884
+ Anodon intemerata Heude, 1885
+ Anodon filippiana Heude, 1885
+ Anodon fantozatiana Heude, 1885
+ Anodonta scaphidium Paetel, 1890

Anodontites (s.s.) amazonensis (Lea, 1860)

Anodontites (s.s.) brevis (Sowerby, 1870)

Anodontites (s.s.) bridgesii (Lea, 1868)

Anodontites (s.s.) cheezianus (Sowerby, 1867)

Anodontites (s.s.) crassus (Swainson, 1823)

Anodontites (s.s.) crispatus Bruguiere, 1792
+ Anodonta crispa Bory de St. Vincent, 1827
+ Anodonta puberula Gould, 1852
+ Anodon reticulatus Sowerby, 1867

Anodontites (s.s.) cylindraceus (Lea, 1838)

Anodontites (s.s.) depexus (von Martens, 1900)

Anodontites (s.s.) dulcis (von Ihering, 1910)

Anodontites (s.s.) elongatus (Swainson, 1823)
+ Anodonta solidula Deville & Hupé, 1850
+ Anodonta wheatleyi Lea, 1852
+ Anodon dactylus Sowerby, 1867
+ Anodon amethystus Sowerby, 1869

Anodontites (s.s.) forbesiana (Lea, 1860)

Anodontites (s.s.) georginae (Griffith, 1834)

Anodontites (s.s.) glauca (Valenciennes, 1833)
+ Anodonta burroughiana Chenu, 1858

Anodontites (s.s.) glauca var. sinaloensis (Crosse & Fischer, 1883)
+ Anodonta ciconia Carpenter, 1857
+ Anodon glaucus Sowerby, 1870

Anodontites (s.s.) granadensis (Lea, 1868)

Anodontites (s.s.) grijalvae (Morelet, 1884)
+ Anodonta grijoloae Paetel, 1890

Anodontites (s.s.) hidalgoi (Germain, 1908)

Anodontites (s.s.) holtonis (Lea, 1857)

Anodontites (s.s.) incarum (Philippi, 1869)

Anodontites (s.s.) inæquivalvis [sic] (Lea, 1868)
+ Anodonta lenticularis Lea, 1868
+ Anodon glabrus Sowerby, 1870
+ Anodon montezianus Sowerby, 1870
+ Anodonta viridana Clessin, 1876

Anodontites (s.s.) jewettianus (Lea, 1868)
+ Anodonta jewettii Lea, 1868
+ Anodonta jewittiana Simpson, 1900

Anodontites (s.s.) leotaudi (Guppy, 1864)

Anodontites (s.s.) limnoicus (d’Orbigny, 1835)
+ Unio (Anodontes) puelchana d’Orbigny, 1835
+ Anodonta obtusula Hupé, 1857
+ Anodonta lymnoica Chenu, 1858

Anodontites (s.s.) lingulatus (Húpe, 1857)

Anodontites (s.s.) longinus (Spix, 1827)

Anodontites (s.s.) lucidus (d’Orbigny, 1835)

Anodontites (s.s.) membranaceus (Maton, 1811)
+ Unio membranacea Hanley, 1843
+ Unio subtrapezius Philippi, 1847

Anodontites (s.s.) montezuma (Lea, 1841)

Anodontites (s.s.) moricandii (Lea, 1860)
+ Anodon exoticus Sowerby, 1867
+ Anodonta angustata Clessin, 1876
+ Anodonta hertwigii Ihering, 1890

Anodontites (s.s.) mortonianus (Lea, 1834)

Anodontites (s.s.) napoensis (Lea, 1868)

Anodontites (s.s.) patagonicus (Lamarck, 1819)
+ Anodon trapezeus Wagner, 1827
+ Anodonta latomarginata Lea, 1834
+ Anodonta membranacea d’Orbigny, 1846
+ Anodonta solida Küster, 1853
+ Anodonta uruguayensis Lea, 1860
+ Anodonta sinuosa Clessin, 1873
+ Anodonta serpentina Clessin, 1876

Anodontites (s.s.) patagonicus var. felix (Pilsbry, 1869 [sic])

Anodontites (s.s.) pazii (Lea, 1866)

Anodontites (s.s.) philippianus (Simpson, 1900)
+ Anodonta subsinuata Philippi, 1869

Anodontites (s.s.) radiatus (Spix, 1827)

Anodontites (s.s.) rotundus (Spix, 1827)
+ Anodonta cailliaudii Lea, 1860

Anodontites (s.s.) rubicundus (Lea, 1860)

Anodontites (s.s.) simpsonianus (Pilsbry, 1896)

Anodontites (s.s.) sinuosa (Lamarck, 1819)
+ Anodon sinuosis Swainson, 1841

Anodontites (s.s.) sirionis [sic] (d’Orbigny, 1835)
+ Unio (Anodontes) ferrarisii d’Orbigny, 1835

Anodontites (s.s.) sirionos (Clessin, 1882)

Anodontites (s.s.) spixii (d’Orbigny, 1835)

Anodontites (s.s.) strebelii (Lea, 1868)

Anodontites (s.s.) tehuantepecensis (Crosse & Fischer, 1894)

Anodontites (s.s.) tortilis (Lea, 1852)
+ Anodonta luteola Lea, 1858
+ Anodon schomburgianus Sowerby, 1870
+ Anodonta schomburgkiana Clessin, 1876

Anodontites (s.s.) trapesialis (Lamarck, 1819)
+ Anodonta trapezialis Blainville, 1825
+ Anodon giganteus Wagner, 1827
+ Anodon susannae Griffith & Pidgeon, 1833
+ Anodon penicillatus Gray, 1834
+ Iridina trapezialis d’Orbigny, 1835
+ Anodon ciconia Gould, 1851
+ Anodon blainvilleana Sowerby, 1867

Anodontites (s.s.) trapesialis var. anserinus (Spix, 1827)

Anodontites (s.s.) trapesialis var. cygnæformis [sic] (Pilsbry, 1896)

Anodontites (s.s.) trapesialis var. exoticus (Lamarck, 1819)

Anodontites (s.s.) trapesialis var. moretonianus (Sowerby, 1867)

Anodontites (s.s.) trapesialis var. rioplatensis (Sowerby, 1870)
+ Anodon ciconia Sowerby, 1870

Anodontites (s.s.) trapesialis var. scriptus (Sowerby, 1867)
+ Anodon subsinuatus Sowerby, 1867
+ Anodon areolatus Sowerby, 1867
+ Anodonta bahiensis Clessin, 1873

Anodontites (s.s.) trautwinianus (Lea, 1852)
+ Anodon ovata Swainson, 1841
+ Margaron (Anodonta) troutwiniana Lea, 1852
+ Anodonta carthagena Simpson, 1900

Anodontites (s.s.) trigonus (Spix, 1827)
+ Unio (Anodontes) chiquitana d’Orbigny, 1835
+ Anodonta castelnaudii Hupé, 1857
+ Anodonta subrostrata Philippi, 1869
+ Anodonta ucayalensis Philippi, 1869
+ Anodontites (s.s.) trigonus var. pallescens Simpson, 1914

Anodontites (s.s.) umbonatus (Simpson, 1900)
+ Anodon ciconia Sowerby, 1870

Anodontites (s.s.) weddellii (Húpe, 1857)

Anodontites (s.s.) wymanii (Lea, 1860)

Anodontites (sec. Styganodon) bambousearum (Morelet, 1851)

Anodontites (sec. Styganodon) clessini (Fischer, 1890)
+ Mycetopus plicatus Clessin, 1882
+ Glabaris nehringi Ihering, 1893

Anodontites (sec. Styganodon) lituratus (Spix, 1827)
+ Anodon litturatum Moricand, 1837

Anodontites (sec. Styganodon) obtusus (Spix, 1827)

Anodontites (sec. Styganodon) obtusus var. juparanus (von Ihering, 1910)

Anodontites (sec. Styganodon) pastasana (Clessin, 1879)

Anodontites (sec. Styganodon) schröterianus (Lea, 1852)

Anodontites (sec. Styganodon) soleniformis (d’Orbigny, 1835)
+ Anodon solenidea Sowerby, 1867

Anodontites (sec. Styganodon) tenebricosus (Lea, 1834)

Anodontites (sec. Virgula) ensiformis (Spix, 1827)

Anodontites (sec. Virgula) falsus (Simpson, 1900)

Anodontites aperta (Rafinesque, 1832)

Anodontites atrovirens (Philippi, 1848)

Anodontites bergi (von Ihering, 1893)

Anodontites carinata (Dunker, 1858)

Anodontites giullaini (‘Recluz’ Adams & Adams, 1857)

Anodontites nicaragua (Philippi, 1848)

Anodontites paphos (Rafinesque, 1832)

Anodontites porcifer (Gray, 1834)

Anodontites wallisi (Mousson, 1869)

Anodontoides elliottii (Lea, 1858)
+ Margaritana elliptica Lea, 1859
+ Anodonta showalterii Lea, 1860

Anodontoides ferussacianus (Lea, 1834)
+ Anodonta argentea Lea, 1840
+ Anodonta ferruginea Lea, 1840
+ Anodon plicatus Haldeman, 1842
+ Anodonta denigrata Lea, 1852
+ Anodonta oblita Lea, 1852
+ Anodon subcylindracea Sowerby, 1867

Anodontoides ferussacianus var. buchanensis (Lea, 1838)
+ Anodonta subcylindracea Lea, 1838

Anodontoides modestus (Lea, 1857)

Arcidens confragosa (Say, 1829)

Arcidopsis footei (Theobald, 1876)

Arconaia conjungens (Heude, 1877)

Arconaia lanceolata (Lea, 1856)
+ Triquetra contorta Lea, 1857

Arconaia mutica (Heude, 1877)

Arkansia wheeleri Ortmann & Walker, 1912

Arthropteron ouassouloui Rochebrune, 1904
+ Arthropteron ouassoulouensis Germain, 1909

Bariosta diploderma (Rafinesque, 1831)

Bariosta ponderosus (Rafinesque, 1831)

Bariosta vittatis (Rafinesque, 1831)

Brazzaea anceyi Bourguignat, 1885
+ Brazzaea eximia Bourguignat, 1886

Brazzaea bourguignati Bourguignat, 1886

Brazzaea bridouxi Bourguignat, 1886

Brazzaea charbonnieri Bourguignat, 1886

Brazzaea coulboisi Bourguignat, 1886

Brazzaea elongata Bourguignat, 1886

Brazzaea jouberti Bourguignat, 1886

Brazzaea lavigeriana Bourguignat, 1886

Brazzaea moineti Bourguignat, 1886

Brazzaea newcombiana Bourguignat, 1886

Brazzaea randabeli Bourguignat, 1886

Brazzaea ventrosa Bourguignat, 1886

Callonaia duprei (Récluz, 1843)
+ Castalia dolabella Sowerby, 1869

Castaliella sulcata (Krauss, 1849)
+ Unio kraussii Lea, 1853

Castalina martensi von Ihering, 1891

Castalina nehringi von Ihering, 1891

Castalina orbignyi (Húpe & Deville, 1850)
+ Unio orbignyana Hupé, 1857
+ Unio dorbignianus Sowerby, 1868

Castalina psammoica (d’Orbigny, 1835)

Castalina undosa (von Martens)

Chamberlainia demangei (Rochebrune, 1904)

Chamberlainia duclerci (Rochebrune, 1882)

Chamberlainia hainesiana (Lea, 1856)
+ Unio imperialis Morelet, 1862

Chamberlainia paviei (Morelet, 1891)
+ Chamberlainia pavici Rochebrune, 1904

Chamberlainia pavonina (Rochebrune, 1904)

Chelidonopsis arietina (Rochebrune, 1886)

Chelidonopsis hirundo (von Martens, 1881)

Chelidonopsis roubaudi Germain, 1908

Colletopterum letourneuxi (Bourguignat, 1870)
+ Anodonta eximium Bourguignat, 1870
+ Anodonta tanousi Bourguignat, 1870
+ Colletopterum praeclarum Bourguignat, 1880

Cristadens beauforti (Bavay, 1908)

Cristadens borneensis (Issel, 1874)
+ Unio plicatulus Lea, 1859
+ Unio pensitatus Fischer & Crosse, 1894

Cristadens guppyi (Smith, E.A., 1885)

Cristaria (Crassitesta) radiata Simpson, 1900
+ Dipsas parvulus Heude, 1881

Cristaria (Pletholophus) discoidea (Lea, 1834)
+ Unio tenuis Griffith & Pidgeon, 1833
+ Unio magnificus Griffith & Pidgeon, 1833
+ Anodonta chinensis Küster, 1853
+ Anodonta gruneriana Clessin, 1876

Cristaria (Pletholophus) discoidea var. sautteri (Lea, 1834)

Cristaria (Pletholophus) gentiliana (Heude, 1881)

Cristaria (Pletholophus) inangulata Haas, 1910

Cristaria (Pletholophus) nicobarica (Moerch, 1872)

Cristaria (Pletholophus) parvula (Heude, 1878)

Cristaria (Pletholophus) reiniana von Martens, 1875

Cristaria (Pletholophus) swinhoei (Adams, H., 1866)
+ Unio swinhoei Sowerby, 1866

Cristaria (s.s.) bellua (Morelet, 1866)

Cristaria (s.s.) herculea (Middendorff, 1848)
+ Unio (Anodonta) smaragdina Anton, 1839
+ Dipsas plicata var. clessini Kobelt, 1879

Cristaria (s.s.) occidentalis (Heude, 1885)

Cristaria (s.s.) plicata (Leach, 1815)
+ Cristaria tuberculata Schumacher, 1817
+ Anodonta dipsas Blainville, 1825
+ Symphynota bialata Lea, 1829
+ Anodonta magnifica Clessin, 1873
+ Barbala plicatula Paetel, 1890

Cristaria (s.s.) spatiosa (Clessin, 1875)
+ Anodon herculeus Sowerby, 1867
+ Dipsas plicata var. japonica Kobelt, 1879

Cuneopsis capitatus (Heude, 1874)

Cuneopsis celtiformis (Heude, 1874)

Cuneopsis heudei (‘Bazin ms’ Heude, 1874)
+ Unio corderii Heude, 1875

Cuneopsis pisciculus (Heude, 1874)
+ Unio retortus Martens, 1875

Cuneopsis rufescens (Heude, 1874)

Cuneopsis tauriformis (Preston, 1906) [sic]

Cyprogenia aberti (Conrad, 1850)
+ Unio popenoi Call, 1885

Cyprogenia aberti var. lamarckiana (Lea, 1852)

Cyprogenia irrorata (Lea, 1828)
+ Unio verrucosus albus Hildreth, 1828
+ Unio stegarius Say, 1834

Cyprogenia irrorata var. pusilla Simpson, 1900

Diplodon (Cyclomya s.s.) disculus (Lea, 1860)

Diplodon (Cyclomya s.s.) fontainianus (d’Orbigny, 1835)
+ Unio fontaineana d’Orbigny, 1846

Diplodon (Cyclomya s.s.) fontainianus var. deceptus Simpson, 1914

Diplodon (Cyclomya s.s.) fontainianus var. gratus (Lea, 1860)

Diplodon (Cyclomya s.s.) funebralis (Lea, 1860)

Diplodon (Cyclomya s.s.) nocturnus (Lea, 1860)

Diplodon (Cyclomya s.s.) paranensis (Lea, 1834)

Diplodon (Cyclomya s.s.) patelloides (Lea, 1860)

Diplodon (Cyclomya s.s.) peraeformis (Lea, 1860)

Diplodon (Cyclomya s.s.) rotundus (Wagner, 1827)

Diplodon (Cyclomya sec. Bulloideus) bulloides (Lea, 1859)

Diplodon (Cyclomya sec. Bulloideus) solisianus (d’Orbigny, 1835)

Diplodon (Cyclomya sec. Bulloideus) variabilis (Maton, 1811)
+ Unio matoniana d’Orbigny, 1835
+ Unio membranacea Hanley, 1843

Diplodon (Hyridella s.s.) australis (‘Lamarck’ Hanley, 1843)
+ Unio depressa Lesson, 1830
+ Unio ambiguus Philippi, 1847
+ Unio balonnensis Conrad, 1850
+ Unio shuttleworthi Küster, 1856
+ Unio philippianus Küster, 1861
+ Unio danellii Villa, 1871
+ Unio bednalli Tate, 1882

Diplodon (Hyridella s.s.) australis var. legrandi (Petterd, 1889)
+ Unio depressus Reeve, 1864

Diplodon (Hyridella s.s.) cultelliformis (Conrad, 1850)
+ Unio depressa Lamarck, 1819
+ Unio paramattensis Lea, 1862

Diplodon (Hyridella s.s.) dorsuosus (Gould, 1851)
+ Unio napeanensis Conrad, 1850

Diplodon (Hyridella s.s.) evansi (Adams & Angas, 1864)

Diplodon (Hyridella s.s.) flyensis (Tapparone Canefri, 1883)

Diplodon (Hyridella s.s.) glenelgensis (Dennant, 1898)

Diplodon (Hyridella s.s.) jeffreysianus (Lea, 1871)

Diplodon (Hyridella s.s.) lessoni (Küster, 1856)
+ Unio australis Küster, 1861

Diplodon (Hyridella s.s.) lutulentus (Gould, 1851)

Diplodon (Hyridella s.s.) menziezi [sic] (Gray in Dieffenbach, 1843)
+ Unio menziesianus Reeve, 1865
+ Margaron (Unio) menzieni Lea, 1870

Diplodon (Hyridella s.s.) menziezi [sic] var. acuta Suter, 1907

Diplodon (Hyridella s.s.) menziezi [sic] var. aucklandicus (Gray in Dieffenbach, 1843)

Diplodon (Hyridella s.s.) menziezi [sic] var. depauperatus (Hutton, 1882)

Diplodon (Hyridella s.s.) menziezi [sic] var. hochstetteri (Dunker, 1862)

Diplodon (Hyridella s.s.) menziezi [sic] var. lucasi Suter, 1905

Diplodon (Hyridella s.s.) menziezi [sic] var. rugulosus Simpson, 1914
+ Unio rugatus Hutton, 1882

Diplodon (Hyridella s.s.) moretonicus (Reeve, 1865)
+ Margaron (Unio) mortonicus Lea, 1870

Diplodon (Hyridella s.s.) profugus (Gould, 1851)

Diplodon (Hyridella s.s.) vittatus (Lea, 1859)

Diplodon (Hyridella s.s.) waikarensis (Colenso, 1845)

Diplodon (Hyridella s.s.) wilsonii (Lea, 1859)
+ Unio (Alasmodon) stuarti Adams & Angas, 1863

Diplodon (Hyridella s.s.) zelebori (Dunker, 1866)

Diplodon (Hyridella sec. Cucumaria) mutabilis (Lea, 1859)

Diplodon (Hyridella sec. Cucumaria) novae-hollandiae (Gray, 1834)
+ Unio cucumoides Lea, 1840
+ Unio cumingianus Dunker, 1852

Diplodon (Hyridella sec. Cucumaria) shuttleworthii (Lea, 1856)
+ Unio mutabilis Reeve, 1865
+ Unio angasi Sowerby, 1867

Diplodon (Hyridella sec. Cucumaria) websteri Simpson, 1902

Diplodon (Laevirostris) stagnorum (Dautzenberg, 1890)

Diplodon (s.s.) acutirostris (Lea, 1866)

Diplodon (s.s.) aethiops (Lea, 1860)

Diplodon (s.s.) aethiops var. piracicabanus (von Ihering, 1893)

Diplodon (s.s.) ampullaceus (Lea, 1866)

Diplodon (s.s.) aplatus (Reeve, 1865)

Diplodon (s.s.) atratus (Sowerby, 1839)
+ Unio limensis Küster, 1856
+ Unio jacobaeus Philippi, 1869
+ Unio landbecki Philippi, 1869
+ Unio diplodon Philippi, 1869

Diplodon (s.s.) aureus Simpson, 1900
+ Unio auratus Küster, 1861

Diplodon (s.s.) beskeanus [sic] (Dunker, 1848)

Diplodon (s.s.) binneyi (Lea, 1845)

Diplodon (s.s.) brownii (Lea, 1856)

Diplodon (s.s.) burroughianus (Lea, 1834)
+ Unio burroughianus d’Orbigny, 1835

Diplodon (s.s.) caipira (von Ihering, 1893)

Diplodon (s.s.) charruanus (d’Orbigny, 1835)
+ Unio faba d’Orbigny, 1835

Diplodon (s.s.) childreni (Gray in Griffith & Pidgeon, 1834)

Diplodon (s.s.) chilensis (Gray, 1828)
+ Unio smithii Griffith & Pidgeon, 1833
+ Unio auratus Philippi, 1847
+ Unio araucanus Philippi, 1847
+ Unio casaeblancae Philippi, 1849
+ Unio casablancae Lea, 1852
+ Unio fragilis Reeve, 1865
+ Unio chilensis Sowerby, 1867
+ Unio longus Philippi, 1869
+ Unio colchaguensis Philippi, 1869
+ Unio foncki Philippi, 1869
+ Unio funcki Paetel, 1890
+ Diplodon (Dipldon) cuprinus Simpson, 1900

Diplodon (s.s.) chiloensis (Küster, 1856)

Diplodon (s.s.) coriaceus (Dunker, 1848)

Diplodon (s.s.) demeraraensis (Lea, 1859)
+ Unio demararaensis Lea, 1859
+ Unio demarasensis Paetel, 1890

Diplodon (s.s.) divaricatus (Lea, 1834)

Diplodon (s.s.) dunkerianus (Lea, 1856)

Diplodon (s.s.) effulgens (Lea, 1856)
+ Unio eurhynchus Küster, 1861

Diplodon (s.s.) expansus (Küster, 1856)

Diplodon (s.s.) firmus (Lea, 1866)

Diplodon (s.s.) firmus var. boettgeri (von Ihering, 1893)

Diplodon (s.s.) frenzelii [sic] (von Ihering, 1893)

Diplodon (s.s.) gassiesi (Küster, 1856)
+ Unio auratus Lea, 1838

Diplodon (s.s.) granosus (Bruguiere, 1792)
+ Unio multistriatus Lea, 1831
+ Unio psammactinus Philippi, 1848
+ Unio pfeifferi Dunker, 1849
+ Unio famelicus Gould, 1850
+ Unio niloticus Sowerby, 1868

Diplodon (s.s.) granuliferus (Dunker, 1848)
+ Unio granulifer Paetel, 1890

Diplodon (s.s.) greeffeanus (von Ihering, 1893)
+ Diplodon greefianus Simpson, 1900

Diplodon (s.s.) huapensis Bartsch, 1906

Diplodon (s.s.) hylaeus (d’Orbigny, 1835)
+ Unio guaraniana d’Orbigny, 1835

Diplodon (s.s.) iheringi ‘Clessin’ Simpson, 1914

Diplodon (s.s.) lacteolus (Lea, 1834)
+ Unio delodonta Lamarck, 1819
+ Unio delodon Martens, 1868

Diplodon (s.s.) leai Simpson, 1900
+ Margarita (Unio) modestus Lea, 1836

Diplodon (s.s.) lepidior (Lea, 1870)
+ Unio lepidus Lea, 1860

Diplodon (s.s.) locellus (Lea, 1866)

Diplodon (s.s.) martensi (von Ihering, 1893)

Diplodon (s.s.) mimus Simpson, 1914

Diplodon (s.s.) modestus (Küster, 1856)
+ Unio ianthinus Philippi, 1869
+ Unio valdivianus Philippi, 1869
+ Unio montanus Philippi, 1869

Diplodon (s.s.) molinae (Philippi, 1847)
+ Unio auratus Sowerby, 1866

Diplodon (s.s.) obtusus (d’Orbigny, 1835)

Diplodon (s.s.) parallelipipedon [sic] (Lea, 1834)
+ Unio bonplandii Lea, 1870

Diplodon (s.s.) parcus (Lea, 1866)

Diplodon (s.s.) patagonicus (d’Orbigny, 1835)

Diplodon (s.s.) paulista (von Ihering, 1893)

Diplodon (s.s.) pazi (Hidalgo, 1868)

Diplodon (s.s.) peculiaris (Lea, 1866)
+ Unio nitidulus Küster, 1861
+ Unio paraguayensis Lea, 1866

Diplodon (s.s.) perplexus Simpson, 1914

Diplodon (s.s.) piceus (Lea, 1860)

Diplodon (s.s.) piger (Lea, 1860)

Diplodon (s.s.) prunoides (Lea, 1868)

Diplodon (s.s.) quadrans (Lea, 1860)

Diplodon (s.s.) rhombeus (Wagner, 1827)

Diplodon (s.s.) rhuacoicus (d’Orbigny, 1835)
+ Unio rhyacoicus Martens, 1868
+ Monocondylaea rhyacoeca Paetel, 1890

Diplodon (s.s.) rhuaconicus (Küster, 1856)

Diplodon (s.s.) rudus (Lea, 1859)
+ Unio rudis Doering, 1875

Diplodon (s.s.) rufofuscus (Lea, 1865)

Diplodon (s.s.) santa-mariae Simpson, 1914

Diplodon (s.s.) semigranosus Simpson, 1914

Diplodon (s.s.) solidulus (Philippi, 1869)

Diplodon (s.s.) suavidicus (Lea, 1856)

Diplodon (s.s.) suppositus Simpson, 1914

Diplodon (s.s.) trifidus (Lea, 1860)

Diplodon (s.s.) trivialis Simpson, 1914

Diplodon (s.s.) uruguayensis (Lea, 1860)

Diplodon (s.s.) wagnerianus Simpson, 1900
+ Diplodon ellipticum Wagner, 1827
+ Diplodon ellypticum Wagner, 1827
+ Unio ellipticus Küster, 1861

Diplodon (s.s.) wagnerianus var. santanus von Ihering, 1910

Diplodon (s.s.) wheatleyanus (Lea, 1856)

Diplodon (s.s.) wymanii (Lea, 1860)
+ Unio apprimus Lea, 1866

Diplodon aethiopiformis (von Ihering)

Diplodon bischoffi (von Ihering)

Diplodon damnoica (d’Orbigny)

Diplodon depressa (d’Orbigny, 1835)

Diplodon fokkesi (Dunker, 1852)

Diplodon garbei von Ihering, 1910

Diplodon guahybae (von Ihering)

Diplodon hartwrighti von Ihering, 1910

Diplodon koseritzi (Clessin, 1888)

Diplodon macropterus (Dunker, 1846)

Diplodon panco von Ihering, 1910

Diplodon paraguayanus (von Martens, 1895)

Diplodon sancta-paulae (von Ihering)

Diplodon sebastanae (von Ihering)

Diplodon zealandicus ‘Gray’ Paetel, 1890

Dromus caperatus (Lea, 1845)
+ Unio abacoides Haldeman, 1846

Dromus dromas (Lea, 1834)
+ Dromus dromus Simpson, 1900

Epioblasma biloba (Rafinesque, 1831)

Fossula balzani von Ihering, 1893

Fossula braziliensis [sic] von Ihering, 1910

Fossula fossiculifera (d’Orbigny, 1835)

Friersonia iridella (Pilsbry & Frierson, 1907)

Gabillotia euphratica (Bourguignat, 1852)
+ Unio churchilleanus Sowerby, 1868
+ Margaritana euphratica Kobelt, 1886
+ Pseudodontopsis babylonica Kobelt, 1913
+ Pseudodontopsis piestius Kobelt, 1913

Gabillotia euphratica var. churchilliana (Bourguignat, 1857)
+ Monocondyloea rhomboidea Lea, 1859

Gabillotia locardi Servain, 1890

Gabillotia opperti (Bourguignat, 1856)

Gabillotia pseudodopsis (Locard, 1883)
+ Anodonta pseudodontopsis Crosse, 1883

Gibbosula crassa (Wood, 1815)
+ Mya ponderosa Dillwyn, 1817

Glebula rotundata (Lamarck, 1819)
+ Unio suborbiculata Lamarck, 1819
+ Unio glebulus Say, 1831
+ Unio subglobosus Lea, 1834
+ Unio grandensis Conrad, 1855
+ Unio rotundatus Reeve, 1865

Gonidea angulata (Lea, 1838)
+ Anodon feminalis Gould, 1850
+ Anodonta randalli Trask, 1854
+ Anodon biangulata Sowerby, 1869

Gonidea angulata var. subangulata (Hemphill, 1891)
+ Gonidea angulata var. haroldiana Dall, 1908

Grandidieria burtoni (Woodward, 1859)
+ Grandidieria cyrenopsis Bourguignat, 1885

Grandidieria burtoni var. insignis Bourguignat, 1885

Grandidieria burtoni var. servainiana Bourguignat, 1885

Grandidieria burtoni var. sturanyi (von Martens, 1897)

Grandidieria callista Bourguignat, 1888

Grandidieria chefneuxi Neuville & Anthony, 1906

Grandidieria elongata Bourguignat, 1885

Grandidieria giraudi Bourguignat, 1885
+ Grandidieria bourguignati Bourguignat, 1888

Grandidieria gravida Bourguignat, 1885
+ Grandidieria rostrata Bourguignat, 1885
+ Grandidieria locardiana Bourguignat, 1886
+ Unio rostralis Martens, 1897

Grandidieria incarnata Bourguignat, 1885

Grandidieria mira Bourguignat, 1885

Grandidieria rhynchonella Bourguignat, 1888

Grandidieria rothschildi (Neuville & Anthony, 1906)

Grandidieria rotundata Bourguignat, 1885

Grandidieria smithi Bourguignat, 1885
+ Unio burtoni E.A. Smith, 1881
+ Grandidieria anceyi Bourguignat, 1886

Grandidieria tanganyicensis (Smith, E.A., 1880)
+ Unio tanganikanus Bourguignat, 1883

Grandidieria thomsoni (Smith, E.A., 1880)
+ Grandidieria corbicula Bourguignat, 1885
+ Grandidieria granulosa Bourguignat, 1885
+ Grandidieria singularis Bourguignat, 1888

Grandidieria tsadianus von Martens, 1903

Harmandia castelneaui Rochebrune, 1904

Harmandia somboriensis Rochebrune, 1881

Hemilastena ambigua (Say, 1825)
+ Unio hildrethianus Lea, 1834
+ Alasmidonta dubia Ferussac, 1835

Hyria (Triquetrana) stevensi (Lea, 1871)

Hyria (s.s.) corrugata Lamarck, 1819
+ Triplodon rugosus Wagner, 1827
+ Mya angulata Wood, 1828
+ Hyria exasperata Sowerby, 1869

Hyria (s.s.) latialata Sowerby, 1869

Hyria (s.s.) rugosissima Sowerby, 1869

Hyria (s.s.) transversa Húpe, 1857

Hyriopsis (Caudiculatus) caudiculata (von Martens, 1866)
+ Unio infrarostratus Schepman, 1896

Hyriopsis (s.s.) bialata Simpson, 1900
+ Unio delphinus Gruner, 1841
+ Unio megapterus Morelet, 1864
+ Unio delphinopterus Dautzenberg & Fischer, 1905

Hyriopsis (s.s.) cumingii (Lea, 1852)
+ Hyriopsis goliath Rolle, 1904

Hyriopsis (s.s.) delaportei (Crosse & Fischer, 1876)

Hyriopsis (s.s.) fulvaster (Drouet & Chaper, 1892)

Hyriopsis (s.s.) gracilis Haas, 1910

Hyriopsis (s.s.) myersiana (Lea, 1856)
+ Unio housei Lea, 1856

Hyriopsis (s.s.) pinchonianus (Heude, 1883)

Hyriopsis (s.s.) schlegeli (von Martens, 1861)

Hyriopsis (s.s.) sutrangensis (Morlet, 1889)

Hyriopsis (s.s.) vagula (Fischer, 1891)
+ Unio subtrigonus Sowerby, 1867
+ Unio lamellatus Hanley & Theobald, 1870

Hyriopsis (s.s.) velthuizeni (Schepman, 1895)
+ Hyriopsis velthuzeni Simpson, 1900

Iheringella balzani (von Ihering, 1893)

Iheringella isocardioides (Lea, 1856)

Iheringella rotundata (Mousson, 1869)

Iheringella semisulcata (Adams, H., 1870)

Lamellidens (Spathopsis) guillaini (Récluz, 1850)

Lamellidens (s.s.) burmanus n. n.
+ Unio pulcher Tapparone Canefri, 1889

Lamellidens (s.s.) canefrianus Simpson, 1900

Lamellidens (s.s.) consobrinus (Lea, 1859)
+ Unio corbeti Deschamps, 1892
+ Lamellidens mainwaringi Preston, 1912

Lamellidens (s.s.) corrianus (Lea, 1834)

Lamellidens (s.s.) generosus (Gould, 1847)
+ Unio lamellatus Sowerby, 1868
+ Unio thwaitesii Hanley & Theobald, 1872
+ Unio generosus var. angustior Hanley & Theobald, 1872

Lamellidens (s.s.) jenkinsianus (Benson, 1862)

Lamellidens (s.s.) lamellatus (Lea, 1838)
+ Unio layardii Lea, 1859

Lamellidens (s.s.) marginalis (Lamarck, 1819)
+ Unio groenlandicus Schröter, 1779
+ Unio testudinarius Spengler, 1793
+ Unio truncatus Spengler, 1793
+ Unio anodontina Lamarck, 1819
+ Symphynota bilineata Lea, 1831
+ Unio evanescens Mousson, 1849
+ Unio marginalis var. zonata Hanley & Theobald, 1872
+ Unio dolichorhynchus Tapparone Canefri, 1889
+ Unio gianellii Tapparone Canefri, 1889

Lamellidens (s.s.) marginalis var. candaharicus (Hanley & Theobald, 1876)

Lamellidens (s.s.) marginalis var. cylindricus (Hanley & Theobald, 1876)

Lamellidens (s.s.) marginalis var. exanthematicus (Küster, 1861)

Lamellidens (s.s.) marginalis var. hanleyi Simpson, 1900
+ Unio marginalis var. corriana Hanley & Theobald, 1872

Lamellidens (s.s.) marginalis var. obesa (Hanley & Theobald, 1876)
+ Unio corrianus Sowerby, 1868

Lamellidens (s.s.) marginalis var. sawaddyensis Preston, 1912

Lamellidens (s.s.) marginalis var. sublamellatus Preston, 1912

Lamellidens (s.s.) marginalis var. tricolor (Küster, 1856)

Lamellidens (s.s.) narainporensis Preston, 1912

Lamellidens (s.s.) nongyangensis Preston, 1912

Lamellidens (s.s.) phenchooganjensis Preston, 1912

Lamellidens (s.s.) scutum (Sowerby, 1868)

Lamellidens (s.s.) scutum var. humilior (von Martens, 1899)

Lamellidens (s.s.) thwaitesii (Lea, 1859)
+ Unio consobrinus Hanley & Theobald, 1872

Lampsilis (Carunculina) corvuncula (Lea, 1868)

Lampsilis (Carunculina) cromwellii (Lea, 1865)
+ Unio marginis Lea, 1865

Lampsilis (Carunculina) cylindrella (Lea, 1868)

Lampsilis (Carunculina) germana (Lea, 1861)
+ Unio granulatus Lea, 1861
+ Unio granulatis Lea, 1861

Lampsilis (Carunculina) glans (Lea, 1831)
+ Unio glans Conrad, 1836

Lampsilis (Carunculina) haleiana (Lea, 1843)

Lampsilis (Carunculina) mearnsi Simpson, 1900

Lampsilis (Carunculina) mœsta (Lea)

Lampsilis (Carunculina) parva (Barnes, 1823)

Lampsilis (Carunculina) paula (Lea, 1840)
+ Unio corvinus Lea, 1868

Lampsilis (Carunculina) pulla (Conrad, 1838)

Lampsilis (Carunculina) texasensis (Lea, 1857)
+ Unio parvus Conrad, 1836
+ Unio bairdianus Lea, 1857
+ Unio bealei Lea, 1862
+ Unio texasianus Sowerby, 1866

Lampsilis (Carunculina) texasensis var. compressa Simpson, 1900

Lampsilis (Eurynia) amoena (Lea, 1840)

Lampsilis (Eurynia) amygdalum (Lea, 1843)
+ Unio lepidus Gould, 1856

Lampsilis (Eurynia) anodontoides (Lea, 1834)
+ Unio teres Say, 1834
+ Lampsilis anodontoides F.C. Baker, 1898

Lampsilis (Eurynia) anodontoides var. floridensis (Lea, 1852)

Lampsilis (Eurynia) apicina (Lea, 1857)

Lampsilis (Eurynia) approxima (Lea, 1845)
+ Unio affinis Lea, 1852

Lampsilis (Eurynia) arkansasensis (Lea, 1862)

Lampsilis (Eurynia) australis Simpson, 1900

Lampsilis (Eurynia) borealis (Gray, 1882)

Lampsilis (Eurynia) bracteata (Gould, 1855)

Lampsilis (Eurynia) camelopardilis (Lea, 1860)
+ Unio fucatus Lea, 1860

Lampsilis (Eurynia) claibornensis (Lea, 1838)
+ Unio obtusus Lea, 1840
+ Unio pallescens Lea, 1845

Lampsilis (Eurynia) concestator (Lea, 1857)
+ Unio intercedens Lea, 1857
+ Unio fallax Lea, 1857
+ Unio contiguus Lea, 1861
+ Unio bicaelatus Reeve, 1865
+ Unio genuinus Lea, 1868

Lampsilis (Eurynia) constricta (Conrad, 1838)
+ Unio genthii Lea, 1857

Lampsilis (Eurynia) contraria (Conrad, 1849)

Lampsilis (Eurynia) dispar (Lea, 1860)

Lampsilis (Eurynia) ellipsiformis (Conrad, 1836)
+ Unio spatulatus Lea, 1845

Lampsilis (Eurynia) fallaciosus Smith, 1899
+ Unio anodontoides Reeve, 1865
+ Unio oriens Sowerby, 1868
+ Lampsilis anodontoides F.C. Baker, 1898

Lampsilis (Eurynia) fatua (Lea, 1840)
+ Unio dactylus Lea, 1840

Lampsilis (Eurynia) gracilior (Lea, 1856)
+ Unio obfuscus Lea, 1857
+ Unio gracillior Lea, 1858

Lampsilis (Eurynia) higginsii (Lea, 1857)

Lampsilis (Eurynia) higginsii var. grandis Simpson, 1914

Lampsilis (Eurynia) hydiana (Lea, 1838)
+ Unio placitus Lea, 1852
+ Unio hydianus Küster, 1861

Lampsilis (Eurynia) iris (Lea, 1829)
+ Unio creperus Lea, 1838
+ Unio novieboraci Lea, 1838
+ Unio cresserus Hanley, 1843
+ Unio radiatus De Kay, 1843
+ Unio subrostratus Küster, 1861
+ Unio subrostratus Reeve, 1864
+ Unio opalinus J.G. Anthony, 1866

Lampsilis (Eurynia) kirklandiana (Wright, S.H., 1897)

Lampsilis (Eurynia) lienosa (Conrad, 1834)
+ Unio saxeus Conrad, 1838
+ Unio caliginosus Lea, 1845
+ Unio fontanus Conrad, 1866

Lampsilis (Eurynia) lienosa var. unicostata (Wright, B.H., 1899)

Lampsilis (Eurynia) ligamentina (Lamarck, 1819)
+ Unio crassus Say, 1817
+ Unio ellipticus Barnes, 1823
+ Unio carinatus Barnes, 1823
+ Mya gravis Wood, 1828
+ Unio ellipsarius Say, 1834
+ Unio fasciatus Conrad, 1835
+ Unio pinguis Lea, 1857
+ Unio luteolus Sowerby, 1867
+ Unio delodontus Sowerby, 1867
+ Unio crassidens Sowerby, 1868
+ Unio pictus Sowerby, 1868
+ Unio venustus Sowerby, 1868
+ Unio upsonii Marsh, 1887

Lampsilis (Eurynia) ligamentina var. gibba Simpson, 1900
+ Unio crassus Sowerby, 1868

Lampsilis (Eurynia) ligamentina var. nigrescens n.v.

Lampsilis (Eurynia) luteola (Lamarck, 1819)
+ Unio inflatus Barnes, 1823
+ Unio siliquoideus Barnes, 1823
+ Unio childreni Hanley, 1843
+ Unio siliquoides Küster, 1848
+ Unio hydianus Küster, 1861
+ Unio distans J.G. Anthony, 1865
+ Unio luteolus Sowerby, 1867
+ Unio multiradiatus Sowerby, 1868
+ Unio affinis Sowerby, 1868

Lampsilis (Eurynia) luteola var. rosacea (DeKay, 1843)

Lampsilis (Eurynia) minor (Lea, 1843)
+ Unio stearnsii B.H. Wright, 1888

Lampsilis (Eurynia) modioliformis (Lea, 1834)
+ Unio tenerus Ravenel, 1834
+ Margarita (Unio) tenerus Lea, 1836
+ Unio delumbis Küster, 1861

Lampsilis (Eurynia) mühlfeldianus (Lea, 1838)

Lampsilis (Eurynia) nasuta (Say, 1817)
+ Unio rostrata Valenciennes, 1827
+ Unio nasutus Conrad, 1838
+ Unio vaughanianus Sowerby, 1868

Lampsilis (Eurynia) nebulosa (Conrad, 1834)
+ Unio cumberlandicus Lea, 1838
+ Unio notatus Lea, 1838
+ Unio glaber Lea, 1838
+ 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 subrostratus Küster, 1861
+ Unio sparus Lea, 1868

Lampsilis (Eurynia) nigerrima (Lea, 1852)
+ Unio fuligo Reeve, 1865

Lampsilis (Eurynia) obscura (Lea, 1838)
+ Unio zeiglerianus Lea, 1838

Lampsilis (Eurynia) occidentalis (Conrad, 1836)

Lampsilis (Eurynia) ogeecheensis (Conrad, 1849)
+ Unio prevostianus Lea, 1852
+ Unio proximus Lea, 1852
+ Unio tenerus Simpson, 1892

Lampsilis (Eurynia) orbiculata (Hildreth, 1828)
+ Unio abruptus Say, 1831
+ Unio cyclips Ferussac, 1835
+ Margarita (Unio) orbiculatus Lea, 1836
+ Unio crassus Conrad, 1836

Lampsilis (Eurynia) ozarkensis (Call, 1887)

Lampsilis (Eurynia) papyracea (Gould, 1845)

Lampsilis (Eurynia) pellucida (Lea, 1845)

Lampsilis (Eurynia) perdix (Lea, 1834)
+ Unio pectorosus Conrad, 1834

Lampsilis (Eurynia) perpasta (Lea, 1861)

Lampsilis (Eurynia) perpurpurea (Lea, 1861)
+ Unio troostensis Sowerby, 1868

Lampsilis (Eurynia) picta (Lea, 1834)
+ Unio lindsleyi Lea, 1860
+ Unio camelopardalis Sowerby, 1866

Lampsilis (Eurynia) planca (Lea, 1860)
+ Unio difficilis Lea, 1868

Lampsilis (Eurynia) planicostata (Lea, 1860)

Lampsilis (Eurynia) pleasii (Marsh, 1891)

Lampsilis (Eurynia) porphyrea (Lea, 1861)

Lampsilis (Eurynia) powellii (Lea, 1853)

Lampsilis (Eurynia) prattii (Lea, 1858)

Lampsilis (Eurynia) propria (Lea, 1865)
+ Unio striatus Sowerby, 1868

Lampsilis (Eurynia) punctata (Lea, 1865)

Lampsilis (Eurynia) punicea (Haldeman, 1842)

Lampsilis (Eurynia) radiata (Gmelin, 1791)
+ Mya radiata Gmelin, 1791
+ Unio virginiana Lamarck, 1819
+ Unio lineata Bory de St. Vincent, 1827
+ Unio oblongatus Wood, 1828
+ Unio tenebrosus Conrad, 1834
+ Unio melinus Conrad, 1838
+ Unio boydianus Lea, 1840
+ Unio crassus Küster, 1854
+ Unio elongata Goodrich, 1859
+ Unio obliquiradiatus Reeve, 1865
+ Unio mellinus Paetel, 1890

Lampsilis (Eurynia) radiata var. conspicua (Lea, 1872)

Lampsilis (Eurynia) recta (Lamarck, 1819)
+ Unio (Eurynia) latissima Rafinesque, 1820
+ Unio praelongus Barnes, 1823
+ Unio arquatus Conrad, 1854
+ Unio leprosus Miles, 1861

Lampsilis (Eurynia) recta var. sageri (Conrad, 1836)

Lampsilis (Eurynia) reeviana [sic] (Lea, 1852)

Lampsilis (Eurynia) sima (Lea, 1838)
+ Unio notatus Conrad, 1853
+ Unio proximus Küster, 1861
+ Unio spatulatus Sowerby, 1868

Lampsilis (Eurynia) singleyana (Marsh, 1891)

Lampsilis (Eurynia) straminea (Conrad, 1834)

Lampsilis (Eurynia) subangulata (Lea, 1840)
+ Unio fasciolus Conrad, 1853

Lampsilis (Eurynia) subrostrata (Say, 1831)
+ Unio nashvillianus Lea, 1834
+ Unio mississippiensis Conrad, 1850
+ Lampsilis nashvillensis Agassiz, 1852
+ Unio rutersvillensis Lea, 1859
+ Unio cocoduensis Reeve, 1865
+ Unio topekaensis Lea, 1868

Lampsilis (Eurynia) subrostrata var. furva Simpson, 1914

Lampsilis (Eurynia) suda (Lea, 1857)
+ Unio concavus Lea, 1852

Lampsilis (Eurynia) superiorensis (Marsh, 1897)

Lampsilis (Eurynia) taeniata (Conrad, 1834)
+ Unio menkianus Lea, 1838
+ Unio pulcher Lea, 1838
+ Unio interruptus Lea, 1838
+ Unio latiradiatus Conrad, 1838
+ Unio tennesseensis Lea, 1840
+ Unio perdix Reeve, 1864
+ Unio taniatus Simpson, 1900

Lampsilis (Eurynia) tenera (Lea, 1840)
+ Unio regularis Lea, 1841

Lampsilis (Eurynia) trabalis (Conrad, 1834)
+ Unio troostensis Lea, 1834
+ Unio vanuxemensis Sowerby, 1866
+ Unio troostii Lea, 1870

Lampsilis (Eurynia) trossulus (Lea, 1845)

Lampsilis (Eurynia) 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
+ Margaron (Unio) vanuxemii Lea, 1870
+ Unio dispansus Lea, 1871

Lampsilis (Eurynia) vaughaniana (Lea, 1838)

Lampsilis (Eurynia) venusta (Lea, 1838)

Lampsilis (Eurynia) vesicularis (Lea, 1872)

Lampsilis (Eurynia) vibex (Conrad, 1834)
+ Unio exiguus Lea, 1840
+ Unio stagnalis Conrad, 1849
+ Unio rutilans Lea, 1856
+ Unio subellipsis Lea, 1856
+ Unio prevostianus Sowerby, 1868
+ Unio subangulatus Sowerby, 1868

Lampsilis (Eurynia) vibex var. nigrina (Lea, 1852)
+ Unio floridensis Wright & Wright, 1888
+ Unio averellii B.H. Wright, 1888

Lampsilis (Eurynia) villosa (Wright, B.H., 1898)

Lampsilis (Eurynia) virescens (Lea, 1858)

Lampsilis (Proptera) alata (Say, 1817)
+ Metaptera megaptera Rafinesque, 1820

Lampsilis (Proptera) alata var. poulsoni (Conrad, 1834)

Lampsilis (Proptera) alienigena (Crosse & Fischer, 1893)

Lampsilis (Proptera) amphichaena (Frierson, 1898)

Lampsilis (Proptera) berlandierii (Lea, 1857)

Lampsilis (Proptera) blatchleyi Daniels, 1902

Lampsilis (Proptera) coloradoensis (Lea, 1856)

Lampsilis (Proptera) delphinulus (Morelet, 1849)