Diplodon beskeanus Lea, 1852
‘Dunker’ of Authors.
Lea, 1852. Synopsis Fam. Naiades: 39, Corrigenda et Addenda.
Lea, 1870. Synopsis Fam. Naiades: 61.
Simpson, 1900. Proc. U.S. Nat. Mus. 22: 875.
Ihering, 1910. Abh. Senckenb. Naturf. Ges. 32: 139.
Figueiras, 1965. Comm. Soc. Malac. Uruguay 1(8): 238.
Parodiz, 1968. Sterkiana 30: 3.
(error for Unio besckeanus Dunker, 1849)

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)

Unio bomplandi Parodiz, 1968
‘Valenciennes’ Parodiz, 1968. Sterkiana 30: 3, 12.
(error for Unio bonplandii Lea, 1870)

Unio demerarensis Parodiz, 1968
‘Lea’ Parodiz, 1968. Sterkiana 30: 4.
(error for Unio demeraraensis Lea, 1859)

Unio greeffianus Parodiz, 1968
‘von Ihering’ Parodiz, 1968. Sterkiana 30: 6.
(error for Unio greeffeanus Ihering, 1893)

Unio janthinus Haas, 1930
‘Philippi’ of Authors.
Haas, 1930. Senckenbergiana 12: 178.
Parodiz, 1968. Sterkiana 30: 7.
(error for Unio ianthinus Philippi, 1869)

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)

Unio psammaticus Lea, 1852
‘Bronn’ Lea, 1852. Synopsis Fam. Naiades: 21.
‘Philippi’ Parodiz, 1968. Sterkiana 30: 9.
(error for Unio psammactinus Philippi, 1848)