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

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)

Psorula Haas, 1930
Haas, 1930, Senckenbergiana 12(6): 319.
(intro'd as sub-gen. of Amblema Rafinesque, 1820)
Type species: Quadrula rudis Simpson, 1900 (orig. desig.) = Psoronaias semigranosa

Conchodromus Haas, 1930
Haas, 1930, Senckenbergiana 12(6): 317.
(new name for Dromus Simpson, 1900)

Anodonta nicaragua Tate, 1870
Philippi of Authors.
Tate, 1870, Amer. J. Conch. 5: 161.
B.H. Wright, 1888, Check List N. Amer. Unionidae etc.: [7].
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 932.
Haas, 1930, Senckenbergiana 12(6): 324.
(error for Anodonta nicaraguae Philippi, 1849)

Dromus dromus Simpson, 1900
‘Lea’ of Authors.
Simpson, 1900, Proc. U.S. Nat. Mus. 22: 615.
Haas, 1930, Senckenbergiana 12(6): 317.
Haas, 1969, Treatise on Invert. Paleo: N452.
Stansbery, 1970, Malacologia 10(1): 18.
Millard, 2001, Class. Moll. (3): 1066.
Serb, 2006, J. Moll. Studies 72: 427.
(error for Unio dromas Lea, 1834)

Anodonta carinata Haas, 1930
‘Conrad’ Haas, 1930, Senckenbergiana 12(6): 318.
(error for Anodonta carinifera Conrad, 1837)

Alasmodonta ductus Haas, 1930
‘Say’ Haas, 1930, Senckenbergiana 12(6): 326.
(error for Alasmodonta abducta Lea, 1836)

Quadrula (s.s.) gigantea Haas, 1930
‘Raf.’ Haas, 1930, Senckenbergiana 12(6): 327.
(error for Obliquaria (Quadrula) quadrula Rafinesque, 1820)

Unio oblitus Haas, 1930
‘Say’ Haas, 1930, Senckenbergiana 12(6): 328. [MS]
(intro'd as syn of Unio (Eurynia) teres Rafinesque, 1820)

Unio elypticus Haas, 1930
‘Say’ Haas, 1930, Senckenbergiana 12(6): 328. [MS]
(intro'd as syn of Unio (Elliptio) fasciata Rafinesque, 1820)

Unio abnormis Haas, 1930
‘Say’ Haas, 1930, Senckenbergiana 12(6): 329. [MS]
(intro'd as syn of Amblema torulosa Rafinesque, 1820)

Amblema (Megalonaias) gigantea (Barnes)
+ Unio heros Say, 1829

Amblema (Psorula) guatemalensis Simps.

Amblema (Psorula) percompressa Marts.

Amblema (Psorula) profunda Simps.

Amblema (Psorula) quadrata Simpson

Amblema (Psorula) rudis (Simpson)

Amblema (Psorula) salinarum (Haas, 1929)

Amblema (Psorula) usumasintae Cr. & F.

Amblema (s.s.) plicata (Say)

Anodonta (Lastena) imbecillis Say

Anodonta (s.s.) grandis Say

Anodontites (s.s.) trapesialis nicaraguae (Philippi)
+ Anodon ciconia Gould, 1851
+ Anodonta bridgesii Lea, 1868
+ Anodonta jewettii Lea, 1868
+ Anodonta glauca var. sinaloensis Crosse & Fischer, 1884

Anodontites (s.s.) trigonus montezuma (Lea)
+ Anodonta atrovirens Philippi, 1849
+ Anodonta cornea Philippi, 1849
+ Anodonta inaequivalva Lea, 1868
+ Anodonta lenticularis Lea, 1868
+ Anodonta granadensis Lea, 1868

Conchodromus dromus [sic] (Lea)

Cyprogenia stegaria (Raf.)
+ Unio irroratus Lea, 1828

Diplodon (Cyclomya) fontainianus (Orb.)
+ Unio quadrans Lea, 1860

Diplodon (s.s.) rhuacoicus (Orb.)
+ Unio binneyi Lea, 1845

Dysnomia (Pilea) sulcata (Lea)

Dysnomia (Torulosa) torulosa (Raf.)
+ Unio abnormis Haas, 1930

Dysnomia (s.s.) flexuosa (Raf.)
+ Unio foliatus Hildreth, 1828

Elliptio (Barynaias) plexoideus Frierson

Elliptio (Barynaias) plexus Conr.

Elliptio (Eurynia) dilatatus (Raf.)
+ Unio gibbosus Barnes, 1823
+ Unio gibbosus Barnes, 1823

Elliptio (s.s.) niger (Raf.)
+ Unio cuneatus Barnes, 1823

Hyridella lessoni (Küster)
+ Unio famelicus Gould, 1850

Lampsilis (Ligumia) fasciata (Raf.)
+ Unio elypticus Haas, 1930

Lampsilis (Ligumia) recta (Lam.)

Lampsilis (Ligumia) subrostrata (Say)

Lampsilis (Ligumia) teres (Raf.)
+ Unio oblitus Haas, 1930

Lampsilis (s.s.) cardium (Raf.)
+ Unio ventricosus Barnes, 1823

Lampsilis (s.s.) ovata (Say)

Lasmigona (Pterosygna) [sic] complanata (Barnes)

Lasmigona (s.s.) costata (Raf.)
+ Alasmodonta abducta Lea, 1836

Obovaria (s.s.) retusa (Lam.)

Obovaria (s.s.) subrotunda (Raf.)

Pilsbryoconcha carinata [sic] (Conrad)

Pilsbryoconcha exilis

Pleurobema (Plethobasus) cicatricosum (Say)

Pleurobema (s.s.) mytiloides Raf.

Proptera alata (Say)

Psoronaias crocodilorum Mor.

Psoronaias distinctus Cr. & F.

Psoronaias herrerae Marshall

Psoronaias kuxensis Frierson

Psoronaias martensi Frierson

Psoronaias morini Mor.

Psoronaias ostreatus Mor.

Psoronaias psoricus Mor.

Psoronaias semigranosus v. d. Busch
+ Unio corium Reeve, 1864

Psoronaias testudineus Mor.

Quadrula (Cyclonaias) tuberculata (Raf.)
+ Unio verrucosus Say, 1834

Quadrula (Obliquata) cordata (Raf.)

Quadrula (Obliquata) obliquata (Raf.)
+ Unio cardiacea Guérin-Méneville, 1823

Quadrula (Orthonymus) cylindrica (Say)

Quadrula (Orthonymus) metanevra (Raf.)
+ Unio nodosus Barnes, 1823

Quadrula (s.s.) gigantea [sic] (Raf.)
+ Unio rugosus Barnes, 1823