Callonaia duprei (Récluz, 1842)
+ Castalia dolabella Sowerby, 1869
Castalia acuticosta Húpe, 1857
Castalia baro (von Ihering, 1910)
+ Castalia ambigua Sowerby, 1869
Castalia crosseana Hidalgo, 1865
Castalia ecarinata Mousson, 1869
Castalia hanleyana Sowerby, 1867
Castalia inflata d’Orbigny, 1835
Castalia juruana (von Ihering, 1910)
Castalia latiquadrata Sowerby, 1869
Castalia multisulcata Húpe, 1857
Castalia quadrilatera d’Orbigny, 1835
Castalia retusa Húpe, 1857
Castalia stevensi (Baker, H.B., 1930)
Castaliella sulcata (Krauss, 1849)
+ Unio kraussii Lea, 1853
Castalina martensi von Ihering, 1891
Castalina nehringi von Ihering, 1891
Castalina orbignyi (Deville & Húpe, 1850)
Castalina psammoica (d’Orbigny, 1835)
Castalina undosa (von Martens, 1885)
Diplodon (Bulloideus) solisianus (d’Orbigny, 1835)
Diplodon (Bulloideus) variabilis (Maton, 1811)
+ Unio matoniana d’Orbigny, 1835
+ Unio membranacea Hanley, 1843
+ Unio bulloides Lea, 1859
Diplodon (Cyclomya) fontainianus (d’Orbigny, 1835)
+ Unio quadrans Lea, 1860
+ Unio rufofuscus Lea, 1865
Diplodon (Cyclomya) paranensis funebralis (Lea, 1860)
+ Unio nocturnus Lea, 1860
+ Unio gratus Lea, 1860
+ Unio peraeformis Lea, 1860
+ Unio disculus Lea, 1860
+ Unio prunoides Lea, 1868
+ Diplodon (Cyclomya s.s.) fontainianus var. deceptus Simpson, 1914
+ Diplodon felipponei Marshall, 1917
+ Diplodon subquadratus Marshall, 1922
+ Diplodon arcuatus Marshall, 1922
Diplodon (Cyclomya) paranensis paranensis (Lea, 1834)
+ Unio paraguayanus Martens, 1895
Diplodon (Cyclomya) rhombeus (Wagner, 1827)
+ Diplodon rotundus Wagner, 1827
+ Unio patelloides Lea, 1860
Diplodon (s.s.) granosus ellypticus Spix, 1827
+ Diplodon ellipticum Wagner, 1827
+ Diplodon (s.s.) wagnerianum Simpson, 1900
+ Diplodon jacksoni Marshall, 1928
Diplodon (s.s.) granosus granosus (Bruguiere, 1792)
+ Unio psammactinus Philippi, 1848
+ Unio granuliferus Dunker, 1849
+ Unio coriaceus Dunker, 1849
Diplodon (s.s.) granosus multistriatus (Lea, 1831)
+ Unio pfeifferi Dunker, 1849
+ Unio firmus var. boettgeri Ihering, 1893
+ Diplodon (s.s.) mimus Simpson, 1914
+ Diplodon (s.s.) semigranosus Simpson, 1914
Diplodontites cookei Marshall, 1922
Fossula fossiculifera balzani von Ihering, 1893
+ Fossula balzani mattogrossensis Ihering, 1915
Fossula fossiculifera braziliensis [sic] von Ihering, 1910
Fossula fossiculifera fossiculifera (d’Orbigny, 1835)
Hyria (Triquetrana) jamauchimensis Baker, F., 1913
+ Hyria amazonia Frierson, 1914
+ Hyria wheatleyi Marshall, 1926
Hyria (Triquetrana) stevensi (Lea, 1871)
Hyria (s.s.) corrugata Lamarck, 1819
+ Triplodon rugosus Wagner, 1827
+ Harmandia somboriensis Rochebrune, 1882
+ Harmandia castelneaui Rochebrune, 1904
Hyria (s.s.) latialata Sowerby, 1869
Hyria (s.s.) rugosissima Sowerby, 1869
Marshalliella balzani (von Ihering, 1893)
Monocondylaea costulata (Moricand, 1858)
Monocondylaea guarayana (d’Orbigny, 1835)
Monocondylaea lentiformis franciscana (Moricand, 1837)
Monocondylaea lentiformis hollandi Ortmann, 1921
Monocondylaea lentiformis lentiformis Lea, 1866
+ Monocondylaea felipponei Marshall, 1922
Monocondylaea minuana d’Orbigny, 1835
+ Aplodon inerme Wagner, 1827
+ Unio (Monocondylaea) parchappii d’Orbigny, 1835
Monocondylaea paraguayana jaspidea (Húpe, 1857)
+ Unio (Monocondylea) reticulata Moricand, 1858
+ Plagiodon rotundatus Mousson, 1869
+ Monocondylaea obesa Ortmann, 1921
Monocondylaea paraguayana paraguayana d’Orbigny, 1835
+ Unio (Monocondylaea) corrientesensis d’Orbigny, 1835
+ Monocondyloea pazii Lea, 1866
+ Monocondylaea orbignyana Doello-Jurado, 1917
Prisodon alatus (Sowerby, 1869)
Prisodon obliquus Schumacher, 1817
+ Unio macropterus Dunker, 1846
+ Hyria castelnaudii Hupé, 1857
+ Unio ortonii Lea, 1868
Prisodon syrmatophorus complanatus (Húpe, 1857)
Prisodon syrmatophorus syrmatophorus (Meuschen in Gronovius, 1781)
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