Mansur, M.C.D., I.C. Miyahira, J.O. Arruda, T.N. Antoniazzi & D.M. Pimpão. 2020. Key to Unionida. [in] Damborenea, Rogers & Thorp, eds. Freshwater Invertebrates — Keys to Neotropical and Antarctic Fauna 5 (4th edition): 409-430.
Acostaea rivolii (Deshayes, 1827) = Mulleria rivoli
Anodontites carinatus (Dunker, 1858) = Anodontites tortilis
Anodontites colombiensis (Marshall, 1922)
Anodontites crispatus Bruguière, 1792 = Anodontites crispata
Anodontites cylindraceus (Lea, 1836) = Anodontites cylindracea
Anodontites elongatus (Swainson, 1823) = Anodontites elongata
+ Anodon trigonus Spix in Wagner, 1827
+ Anodontites guanarensis Marshall, 1927
Anodontites elongatus (Swainson, 1823) = Anodontites trigona
Anodontites elongatus (Swainson, 1823) = Anodontites guanarensis
Anodontites ferrarisi (d’Orbigny, 1835) = Anodontites ferrarisii
Anodontites iheringi (Clessin, 1882)
Anodontites inaequivalvis [sic] (Lea, 1868) = Anodontites montezuma
+ Anodonta lenticularis Lea, 1868
+ Anodon montezianus Sowerby, 1870
+ Anodonta depexa Martens, 1900
Anodontites inaequivalvis [sic] (Lea, 1868) = Anodontites tehuantepecensis
Anodontites leotaudi (Guppy, 1866)
Anodontites lucidus (d’Orbigny, 1835) = Anodontites lucida
Anodontites montezuma (Lea, 1841)
Anodontites moricandi (Lea, 1860) = Anodontites moricandii
Anodontites napoensis (Lea, 1868) = Anodontites crispata
Anodontites obtusus (Spix in Wagner, 1827) = Anodontites obtusa
Anodontites patagonicus (Lamarck, 1819) = Anodontites patagonica
Anodontites pittieri Marshall, 1922 = Anodontites tehuantepecensis
Anodontites puelchanus (d’Orbigny, 1835) = Anodontites trigona
Anodontites schomburgianus (Sowerby, 1870) = Anodontites schomburgiana
Anodontites soleniformis (d’Orbigny, 1835) = Anodontites solenidea
Anodontites tenebricosus (Lea, 1834) = Anodontites tenebricosa
Anodontites tortilis (Lea, 1852)
Anodontites trapesialis (Lamarck, 1819)
Anodontites trapezeus (Spix in Wagner, 1827) = Anodontites trapezea
Bartlettia stefanensis (Moricand, 1856)
Callonaia duprei (Récluz, 1842)
Castalia ambigua (Lamarck, 1819)
Castalia cordata Swainson, 1840
Castalia ecarinata Mousson, 1869
Castalia inflata d’Orbigny, 1835
Castalia martensi (Ihering, 1891)
Castalia multisulcata Hupé, 1857
Castalia nehringi (Ihering, 1891)
Castalia orbignyi (Deville & Hupé, 1850)
Castalia orinocensis Morrison, 1943
Castalia psammoica (d’Orbigny, 1835)
Castalia quadrata Sowerby, 1867 = Castaliella quadrata
Castalia schombergiana Sowerby, 1869 = Castaliella schombergiana
Castalia undosa Martens, 1885
Castaliella sulcata (Krauss, 1849)
Diplodon aethiops (Lea, 1860)
Diplodon berthae Ortmann, 1921
Diplodon caipira (Ihering, 1893)
Diplodon chilensis (Gray, 1828)
Diplodon delodontus (Lamarck, 1819)
Diplodon ellipticus Spix in Wagner, 1827
+ Unio dunkerianus Lea, 1856
+ Unio besckeanus Dunker, 1849
Diplodon fontainianus (d’Orbigny, 1835)
Diplodon funebralis (Lea, 1860)
Diplodon granosus (Bruguière, 1792)
Diplodon greeffeanus (Ihering, 1893)
Diplodon guaranianus (d’Orbigny, 1835)
Diplodon imitator Ortmann, 1921
Diplodon martensi (Ihering, 1893)
Diplodon multistriatus (Lea, 1831)
+ Unio expansus Küster, 1856
Diplodon obsolescens F. Baker, 1914
Diplodon parallelopipedon (Lea, 1834)
Diplodon parodizi Bonetto, 1962
Diplodon paulista (Ihering, 1893) = Diplodon paulistus
Diplodon piceus (Lea, 1860)
Diplodon rhombeus Spix in Wagner (1827)
Diplodon rhuacoicus (d’Orbigny, 1835)
Diplodon rotundus Spix in Wagner, 1827
Diplodon solisianus (d’Orbigny, 1835)
Diplodon suavidicus (Lea, 1856)
Diplodon uruguayensis (Lea, 1860)
Diplodon vicarius Ortmann, 1921
Diplodon voltzi Vernhout, 1914
Diplodon wymanii (Lea, 1860)
Diplodon (Australis) solidulus (Philippi, 1869) = Diplodon solidulus
Diplodontites cookei Marshall, 1922
Diplodontites olssoni Pilsbry, 1933
Diplodontites pilsbryana Olsson & Wurtz, 1951
Lamproscapha ensiformis (Spix in Wagner, 1827)
Leila blainvilliana (Lea, 1834)
Leila esula (d’Orbigny, 1835)
Monocondylaea corrientesensis d’Orbigny, 1835
Monocondylaea costulata (Moricand, 1858)
Monocondylaea franciscana (Moricand, 1836)
Monocondylaea guarayana d’Orbigny, 1835
Monocondylaea jaspidea (Hupé in Castelnau, 1857)
Monocondylaea minuana d’Orbigny, 1835
Monocondylaea paraguayana d’Orbigny, 1835
Monocondylaea parchappii d’Orbigny, 1835
Mycetopoda legumen (Martens, 1888)
Mycetopoda siliquosa (Spix in Wagner, 1827)
Mycetopoda soleniformis d’Orbigny, 1835
Mycetopodella falcata (Higgins, 1868)
Paxyodon syrmatophorus (Meuschen in Gronovius, 1781) = Prisodon syrmatophorus
Prisodon obliquus Schumacher, 1817
Rhipidodonta burroughiana (Lea, 1834) = Diplodon burroughianus
Rhipidodonta charruana (d’Orbigny, 1835) = Diplodon charruanus
Rhipidodonta decepta (Simpson, 1914) = Diplodon gratus
Rhipidodonta garbei (Ihering, 1910) = Diplodon garbei
Rhipidodonta hildae (Ortmann, 1921) = Diplodon hildae
Rhipidodonta hylaea (d’Orbigny, 1835) = Diplodon hylaeus
Rhipidodonta iheringi (Simpson, 1914) = Diplodon iheringi
Rhipidodonta koseritzi (Clessin, 1888) = Diplodon koseritzi
Rhipidodonta paranensis (Lea, 1834) = Diplodon paranensis
Rhipidodonta peraeformis (Lea, 1860) = Diplodon peraeformis
Rhipidodonta variabilis (Maton, 1809) = Diplodon variabilis
Tamsiella amazonica Bonetto, 1972
Tamsiella schroeteriana (Lea, 1852)
Tamsiella tamsiana (Dunker, 1858)
Triplodon chodo Mansur & Pimpão, 2008
Triplodon corrugatus (Lamarck, 1819)