Unio chilensis Gray, 1828
Gray, 1828. Spicil. Zool. pt. 1: 7, pl. 6, fig. 12.
Type(s): BMNH_1986147, Chile ?

Diplodon (s.s.) chilensis — Simpson (1900), Simpson (1914), Bonetto (1965), Figueiras (1965), Rumi et al. (2008), Pereira et al. (2014), Torres et al. (2018)
Diplodon chilensis chilensis — Haas (1930), Parada & Peredo (2008)
Diplodon chilensis chilensis — Parodiz (1968)
Diplodon (s.s.) chilensis chilensis — Haas (1969), Parada & Peredo (2002)
Diplodon chilensis — Graf & Ó Foighil (2000), Graf (2002), Graf & Cummings (2006), Graf & Cummings (2007), Fabbri et al. (2008), ... Zieritz et al. (2015), Yusseppone et al. (2018), Mansur et al. (2020), Graf & Cummings (2021), Torres et al. (2024)
— Petit & Coan (2008)

Unio childreni Griffith & Pidgeon, 1833
Gray in Griffith & Pidgeon, 1833. [in] Cuvier, Animal Kingdom 12(38): pl. 20, fig. 1.
Gray in Griffith & Pidgeon, 1834. [in] Cuvier, Animal Kingdom 12(39-40): 600.

Diplodon (s.s.) childreni — Simpson (1900), Simpson (1914)
Diplodon chilensis chilensis — Haas (1930)
— Parodiz (1968), Petit & Coan (2008)
Diplodon (s.s.) chilensis chilensis — Haas (1969)

Unio smithii Griffith & Pidgeon, 1833
Gray in Griffith & Pidgeon, 1833. [in] Cuvier, Animal Kingdom 12(38): pl. 20, fig. 3.
Gray in Griffith & Pidgeon, 1834. [in] Cuvier, Animal Kingdom 12(39-40): 600.

Diplodon (s.s.) chilensis — Simpson (1900), Simpson (1914)
Diplodon chilensis chilensis — Haas (1930)
Diplodon chilensis chilensis — Parodiz (1968)
Diplodon (s.s.) chilensis chilensis — Haas (1969), Parada & Peredo (2002)
— Petit & Coan (2008)

Unio obtusa d’Orbigny, 1835
‘Féruss.’ d’Orbigny, 1835. Mag. Zool. 5(61-62): 35.
‘Féruss.’ d’Orbigny, 1846. Voyage dans l’Amérique Méridionale 5: 610.
(homonym of Unio obtusa Cuvier, 1817)

Diplodon (s.s.) obtusus — Simpson (1900), Simpson (1914)
Diplodon chilensis chilensis — Haas (1930)
Diplodon chilensis chilensis — Parodiz (1968)
Diplodon (s.s.) chilensis chilensis — Haas (1969), Parada & Peredo (2002)

Unio patagonica d’Orbigny, 1835
d’Orbigny, 1835. Mag. Zool. 5(61-62): 37.
d’Orbigny, 1846. Voyage dans l’Amérique Méridionale 5: 610, pl. 70, figs. 1-4.
Type(s): LECTOTYPE BMNH_1854-12-4-850, Rio Negro, Patagonia.

Diplodon (s.s.) patagonicus — Simpson (1900), Simpson (1914), Ortmann (1921)
Diplodon chilensis patagonica — Haas (1930)
Diplodon chilensis patagonicus — Parodiz (1968), Parada & Peredo (2008)
Diplodon (s.s.) chilensis patagonicus — Haas (1969)
Diplodon (s.s.) chilensis patagonica — Parada & Peredo (2002)
Diplodon patagonicus — Simone (2006), Graf & Cummings (2007), Bogan (2010)
Diplodon chilensis — IUCN (2011), Graf & Cummings (2021)

Unio auratus Lea, 1838
‘Swainson’ of Authors.
Lea, 1838. Synopsis Fam. Naiades: 22.
Hanley, 1843. Illustr. Descr. Cat. Rec. Bivalve Shells: 199 [as ‘Naia aurata’].
‘Swain.’ Lea, 1852. Synopsis Fam. Naiades: 33 [as ‘Niäa aurata’].
‘Swainson MS’ Reeve, 1865. Conch. Icon. 16: pl. 29, sp. 150.
(reference to Unio auratus Philippi, 1847)
Type(s): FIGURED SPECIMEN BMNH_1965144, I. of Chiloe.

Diplodon (s.s.) gassiesi — Simpson (1900), Simpson (1914)

Unio atratus Sowerby, 1839
Sowerby, 1839. Conch. Man.: 121, fig. 148.
(misidentified reference to Unio (Niaa) atrata Swainson, 1823)

Diplodon (s.s.) atratus — Simpson (1900), Simpson (1914)
Diplodon chilensis chilensis — Haas (1930)
Diplodon atratus — Bonetto (1959)
Diplodon chilensis chilensis — Parodiz (1968)
Diplodon (s.s.) chilensis chilensis — Haas (1969), Parada & Peredo (2002)

Unio araucanus Philippi, 1847
Philippi, 1847. Abbild. Beschr. Conch. 3: 50, pl. 3, fig. 3.

Diplodon (s.s.) chilensis — Simpson (1900), Simpson (1914)
Diplodon chilensis chilensis — Haas (1930)
Diplodon chilensis chilensis — Parodiz (1968)
Diplodon (s.s.) chilensis chilensis — Haas (1969), Parada & Peredo (2002)

Unio auratus Philippi, 1847
‘Swainson’ Philippi, 1847. Abbild. Beschr. Conch. 3: 49, pl. 4, fig. 1.
(homonym of Unio (Elliptio) aurata Rafinesque, 1820)

Diplodon (s.s.) chilensis — Simpson (1900), Simpson (1914)
Diplodon chilensis chilensis — Haas (1930)
Diplodon (s.s.) chilensis chilensis — Haas (1969)

Unio molinae Philippi, 1847
Philippi, 1847. Abbild. Beschr. Conch. 3: 50, pl. 4, fig. 4.

Diplodon (s.s.) molinae — Simpson (1900), Simpson (1914)
Diplodon chilensis chilensis — Haas (1930)
Diplodon chilensis chilensis — Parodiz (1968)
Diplodon (s.s.) chilensis chilensis — Haas (1969), Parada & Peredo (2002)

Unio casaeblancae Philippi, 1849
Philippi, 1849. Z. Malak. 5(11): 176.

Diplodon (s.s.) casaeblancae — Simpson (1900)
Diplodon (s.s.) chilensis — Simpson (1914)
Diplodon chilensis chilensis — Haas (1930)
Diplodon chilensis chilensis — Parodiz (1968)
Diplodon (s.s.) chilensis chilensis — Haas (1969), Parada & Peredo (2002)

Unio casablancae Lea, 1852
‘Philippi’ of Authors.
Lea, 1852. Synopsis Fam. Naiades: 39.
Pfeiffer, 1869. Novit. Conch. 3: 481, pl. 104, figs. 1-2.
Lea, 1870. Synopsis Fam. Naiades: 53.
Parada & Peredo, 2002. Rev. Chilena Hist. Nat. 75: 693.
(error for Unio casaeblancae Philippi, 1849)

Diplodon (s.s.) casaeblancae — Simpson (1900)
Diplodon (s.s.) chilensis — Simpson (1914)
Diplodon chilensis chilensis — Parodiz (1968)

Unio gassiei Küster, 1856
‘Grateloup teste Charpentier’ Küster, 1856. Conchyl. Cab. 9(2): 148, pl. 43, figs. 3-4.
Type(s): SYNTYPES MNHN-IM-2000-1703, Rio Carampagua, S.O. de Concepcion, Chili.

Diplodon (s.s.) gassiesi — Simpson (1900), Simpson (1914)
Diplodon chilensis chilensis — Haas (1930)
Diplodon chilensis chilensis — Parodiz (1968)
Diplodon (s.s.) chilensis chilensis — Haas (1969), Parada & Peredo (2002)

Unio limensis Küster, 1856
‘Charpentier mss.’ Küster, 1856. Conchyl. Cab. 9(2): 146, pl. 42, fig. 7; pl. 43, fig. 1.

Diplodon (s.s.) atratus — Simpson (1900), Simpson (1914)
Diplodon chilensis chilensis — Haas (1930)
Diplodon chilensis chilensis — Parodiz (1968)
Diplodon (s.s.) chilensis chilensis — Haas (1969), Parada & Peredo (2002)
Diplodon limensis — Ramírez et al. (2003)

Unio modestus Küster, 1856
‘Charpentier mss.’ Küster, 1856. Conchyl. Cab. 9(2): 147, pl. 43, fig. 2.
Type(s): SYNTYPES SMF_4369, Valparaiso.

Diplodon (s.s.) modestus — Simpson (1900), Simpson (1914)
Diplodon chilensis chilensis — Haas (1930)
Diplodon chilensis chilensis — Parodiz (1968)
Diplodon (s.s.) chilensis chilensis — Haas (1969), Parada & Peredo (2002)

Unio chiloensis Küster, 1861
‘Philippi’ Küster, 1861. Conchyl. Cab. 9(2): 161, pl. 35, fig. 6 [as ‘chiloënsis’].

Diplodon (s.s.) chiloënsis — Simpson (1900)
Diplodon (s.s.) chiloensis — Simpson (1914)
Diplodon chilensis chilensis — Haas (1930)
Diplodon chilensis chilensis — Parodiz (1968)
Diplodon (s.s.) chilensis chilensis — Haas (1969), Parada & Peredo (2002)

Unio aplatus Reeve, 1865
‘Swainson ms’ Reeve, 1865. Conch. Icon. 16: pl. 28, sp. 143.

Diplodon (s.s.) aplatus — Simpson (1900), Simpson (1914)
Diplodon chilensis chilensis — Haas (1930)
Diplodon chilensis chilensis — Parodiz (1968)
Diplodon (s.s.) chilensis chilensis — Haas (1969)

Unio fragilis Reeve, 1865
‘Swainson MS’ Reeve, 1865. Conch. Icon. 16: pl. 30, sp. 155.
(homonym of Unio (Leptodea) fragilis Rafinesque, 1820; renamed Diplodon (Dipldon) cuprinus Simpson, 1900)
Type(s): HOLOTYPE BMNH_MP_365, Id. of Chiloe, Chile.

Diplodon (s.s.) cuprinus — Simpson (1900)
Diplodon (s.s.) chilensis — Simpson (1914)
Diplodon chilensis chilensis — Haas (1930)
Diplodon chilensis chilensis — Parodiz (1968)
Diplodon (s.s.) chilensis chilensis — Haas (1969), Parada & Peredo (2002)

Unio patagonicus Reeve, 1865
‘d’Orbigny’ Reeve, 1865. Conch. Icon. 16: pl. 21, sp. 93.
(reference to Unio patagonica d’Orbigny, 1835)

Diplodon (s.s.) patagonicus — Simpson (1900)

Unio auratus Sowerby, 1866
‘Swainson’ Sowerby, 1866. Conch. Icon. 16: pl. 45, sp. 245.
(reference to Unio auratus Philippi, 1847)
Type(s): FIGURED SPECIMEN BMNH_1968864, (South America).

Diplodon (s.s.) molinae — Simpson (1900), Simpson (1914)

Unio chilensis Sowerby, 1867
‘Parreyss’ Sowerby, 1867. Conch. Icon. 16: pl. 56, sp. 286; errata.
(reference to Unio chilensis Gray, 1828)
Type(s): UNKNOWN BMNH_74-12-11-11, Chili.

Diplodon (s.s.) chilensis — Simpson (1900), Simpson (1914)

Unio colchaguensis Philippi, 1869
Philippi, 1869. Malak. Blatt. 16: 47.
Pfeiffer, 1869. Novit. Conch. 3: 484, pl. 104, figs. 9-10.

Diplodon (s.s.) casaeblancae — Simpson (1900)
Diplodon (s.s.) chilensis — Simpson (1914)
Diplodon chilensis chilensis — Haas (1930)
Diplodon chilensis chilensis — Parodiz (1968)
Diplodon (s.s.) chilensis chilensis — Haas (1969), Parada & Peredo (2002)

Unio diplodon Philippi, 1869
Philippi, 1869. Malak. Blatt. 16: 46.
Pfeiffer, 1869. Novit. Conch. 3: 483, pl. 104, figs. 7-8.

Diplodon (s.s.) atratus — Simpson (1900), Simpson (1914)
Diplodon chilensis chilensis — Haas (1930)
Diplodon chilensis chilensis — Parodiz (1968)
Diplodon (s.s.) chilensis chilensis — Haas (1969), Parada & Peredo (2002)

Unio foncki Philippi, 1869
Philippi, 1869. Malak. Blatt. 16: 49.
Pfeiffer, 1869. Novit. Conch. 3: 483, pl. 104, figs. 5-6.
Type(s): SYNTYPE SMF_4322, Laguna Villavira, S. Chile.

Diplodon (s.s.) casaeblancae — Simpson (1900)
Diplodon (s.s.) chilensis — Simpson (1914)
Diplodon chilensis chilensis — Haas (1930)
Diplodon chilensis chilensis — Parodiz (1968)
Diplodon (s.s.) chilensis chilensis — Haas (1969), Parada & Peredo (2002)

Unio ianthinus Philippi, 1869
Philippi, 1869. Malak. Blatt. 16: 46.
Pfeiffer, 1869. Novit. Conch. 3: 485, pl. 104, figs. 11-12.

Diplodon (s.s.) modestus — Simpson (1900), Simpson (1914)
Diplodon chilensis chilensis — Haas (1930)
Diplodon chilensis chilensis — Parodiz (1968)
Diplodon (s.s.) chilensis chilensis — Haas (1969), Parada & Peredo (2002)

Unio jacobaeus Philippi, 1869
Philippi, 1869. Malak. Blatt. 16: 44.
Pfeiffer, 1869. Novit. Conch. 3: 478, sp. 635, pl. 103, figs. 3-4.
Type(s): SYNTYPE SMF_3850, Prov. Santiago, Chile.

Diplodon (s.s.) atratus — Simpson (1900), Simpson (1914)
Diplodon chilensis chilensis — Haas (1930)
Diplodon chilensis chilensis — Parodiz (1968)
Diplodon (s.s.) chilensis chilensis — Haas (1969), Parada & Peredo (2002)

Unio landbecki Philippi, 1869
Philippi, 1869. Malak. Blatt. 16: 45.
Pfeiffer, 1869. Novit. Conch. 3: 479, pl. 103, figs. 5-6.

Diplodon (s.s.) atratus — Simpson (1900), Simpson (1914)
Diplodon chilensis chilensis — Haas (1930)
Diplodon chilensis chilensis — Parodiz (1968)
Diplodon (s.s.) chilensis chilensis — Haas (1969), Parada & Peredo (2002)

Unio longus Philippi, 1869
Philippi, 1869. Malak. Blatt. 16: 44.
Pfeiffer, 1869. Novit. Conch. 3: 477, pl. 103, figs. 1-2.

Diplodon (s.s.) casaeblancae — Simpson (1900)
Diplodon (s.s.) chilensis — Simpson (1914)
Diplodon chilensis chilensis — Haas (1930)
Diplodon chilensis chilensis — Parodiz (1968)
Diplodon (s.s.) chilensis chilensis — Haas (1969), Parada & Peredo (2002)

Unio montanus Philippi, 1869
Philippi, 1869. Malak. Blatt. 16: 48.
Pfeiffer, 1869. Novit. Conch. 3: 482, pl. 104, figs. 3-4.

Diplodon (s.s.) modestus — Simpson (1900), Simpson (1914)
Diplodon chilensis chilensis — Haas (1930)
Diplodon chilensis chilensis — Parodiz (1968)
Diplodon (s.s.) chilensis chilensis — Haas (1969), Parada & Peredo (2002)

Unio valdivianus Philippi, 1869
Philippi, 1869. Malak. Blatt. 16: 48.
Pfeiffer, 1869. Novit. Conch. 3: 479, pl. 103, figs. 7-8.
Type(s): SYNTYPE SMF_3851, Valdivia, Chile.

Diplodon (s.s.) modestus — Simpson (1900), Simpson (1914)
Diplodon chilensis chilensis — Haas (1930)
Diplodon chilensis chilensis — Parodiz (1968)
Diplodon (s.s.) chilensis chilensis — Haas (1969), Parada & Peredo (2002)

Unio frenzelii Ihering, 1893
Ihering, 1893. Arch. Naturg. 59(1): 111, pl. 4, fig. 14.
Type(s): LECTOTYPE SMF_3854, Patagonien.

Diplodon (s.s.) frenzelii [sic] — Simpson (1900), Simpson (1914)
Diplodon (s.s.) frenzelii — Ortmann (1921)
Diplodon chilensis patagonica — Haas (1930)
Diplodon chilensis patagonicus — Parodiz (1968)
Diplodon (s.s.) chilensis patagonicus — Haas (1969)
Diplodon (s.s.) chilensis patagonica — Parada & Peredo (2002)

Unio frenzelii var. andina Ihering, 1893
Ihering, 1893. Arch. Naturg. 59(1): 113.
(intro'd as intra-sp. of Unio frenzelii Ihering, 1893)
Type(s): LECTOTYPE SMF_3856, Patagonien am Fuss der Kordilleren.

— Simpson (1914)
Diplodon chilensis patagonica — Haas (1930)
Diplodon chilensis patagonicus — Parodiz (1968)
Diplodon (s.s.) chilensis patagonicus — Haas (1969)

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)

Diplodon (Dipldon) cuprinus Simpson, 1900
Simpson, 1900. Proc. U.S. Nat. Mus. 22: 883.
(new name for Unio fragilis Reeve, 1865)

Diplodon (s.s.) cuprinus — Simpson (1900)
Diplodon (s.s.) chilensis — Simpson (1914)
Diplodon chilensis chilensis — Haas (1930)
Diplodon chilensis chilensis — Parodiz (1968)
Diplodon (s.s.) chilensis chilensis — Haas (1969), Parada & Peredo (2002)

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.

Diplodon (s.s.) aureus — Simpson (1900), Simpson (1914)
Diplodon chilensis chilensis — Haas (1930)
Diplodon chilensis chilensis — Parodiz (1968)
Diplodon (s.s.) chilensis chilensis — Haas (1969), Parada & Peredo (2002)

Diplodon huapensis Bartsch, 1906
Bartsch, 1906. Proc. U.S. Nat. Mus. 30: 394, pls. 27-29 [figs. 1-2?].
Type(s): HOLOTYPE (ORIG. DESIG.) USNM_186117, Nahuel Huape, Argentina.

Diplodon huapensis — Bartsch (1906), Bonetto (1959)
Diplodon (s.s.) huapensis — Simpson (1914)
Diplodon (s.s.) frenzelii — Ortmann (1921)
Diplodon chilensis patagonica — Haas (1930)
Diplodon chilensis patagonicus — Parodiz (1968)
Diplodon (s.s.) chilensis patagonicus — Haas (1969)
Diplodon (s.s.) chilensis patagonica — Parada & Peredo (2002)
Diplodon patagonicus — Simone (2006)

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

Unio chinensis Griffith & Pidgeon, 1834
Griffith & Pidgeon, 1834. [in] Cuvier, Animal Kingdom 12(39-40): 600.
(error for Unio chilensis Gray, 1828)

— Petit & Coan (2008)

Unio depressa d’Orbigny, 1835
‘Lamarck’ d’Orbigny, 1835. Mag. Zool. 5(61-62): 34.
(misidentified reference to Unio depressa Lamarck, 1819)

Diplodon depressa — Simpson (1900), Simpson (1914)
Diplodon chilensis chilensis — Haas (1930)
Diplodon chilensis chilensis — Parodiz (1968)
Diplodon (s.s.) chilensis chilensis — Haas (1969), Parada & Peredo (2002)
Rhipidodonta burroughiana — Simone (2006)

Unio gassiesii Lea, 1852
Lea, 1852. Synopsis Fam. Naiades: 33.
(error for Unio gassiei Küster, 1856)

Unio auratus Küster, 1861
‘Swainson’ Küster, 1861. Conchyl. Cab. 9(2): 161, pl. 46, fig. 3.
(reference to Unio auratus Philippi, 1847)

Diplodon (s.s.) aureus — Simpson (1900), Simpson (1914)
Diplodon chilensis chilensis — Parodiz (1968)

Unio arancanus Paetel, 1890
‘Philippi’ Paetel, 1890. Cat. Conch.-Samml. 3: 144.
(error for Unio araucanus Philippi, 1847)

Unio funcki Paetel, 1890
‘Phl.’ Paetel, 1890. Cat. Conch.-Samml. 3: 153.
(error for Unio foncki Philippi, 1869)

Diplodon (s.s.) casaeblancae — Simpson (1900)
Diplodon (s.s.) chilensis — Simpson (1914)
Diplodon chilensis chilensis — Parodiz (1968)