Hyria corrugata Lamarck, 1819
Bruguière, 1797. Encycl. Méth. 2: pl. 247, figs. 2a-b [as Unio sp.].
Lamarck, 1819. Hist. Natur. Anim. sans Vert. 6: 82, sp. 2.
(renamed Hyria rugosa Bory de St. Vincent, 1827; renamed Mya angulata Wood, 1828)
Type(s): HOLOTYPE MHNG-MOLL-50578, Unknown.

Hyria (s.s.) corrugata — Simpson (1900), Simpson (1914), Haas (1931)
Hyria corrugata — Haas (1916), Ortmann (1921), Modell (1942), Morretes (1949)
Prisodon (Triplodon) corrugata — Parodiz & Bonetto (1963)
Triplodon (s.s.) corrugatus — Haas (1969)
Triplodon corrugatus — Mansur & Valer (1992), Ramírez et al. (2003), Whelan et al. (2011), Pereira et al. (2014), Graf et al. (2015), ... Graf & Cummings (2021), Sonowal et al. (2021), Breure et al. (2022), Chen et al. (2025), Campbell & Lydeard (2026)
Prisodon corrugatus — Simone (2006)
Prisodon (Triplodon) corrugatus — Graf & Cummings (2007)
Triplodon corrugata — Bogan (2010)

Hyria rugosa Bory de St. Vincent, 1827
‘Lamk.’ Bory de St. Vincent, 1827. Encycl. Méth. 2: 151.
(new name for Hyria corrugata Lamarck, 1819; homonym of Triplodon rugosus Wagner, 1827)

Hyria corrugata — Haas (1916)

Triplodon rugosus Wagner, 1827
Spix in Wagner, 1827. Test. Fluv. Brasil.: 35, pl. 29, figs. 1-2.
Type(s): SYNTYPE SMF_3782, Brasilien.

Hyria (s.s.) corrugata — Simpson (1900), Simpson (1914), Haas (1931)
Hyria corrugata — Haas (1916)
Prisodon (Triplodon s.s.) rugosus — Thiele (1934)
Prisodon (Triplodon) corrugata — Parodiz & Bonetto (1963)
Triplodon (s.s.) corrugatus — Haas (1969)
Triplodon (s.s.) rugosus — Haas (1969)
Prisodon corrugatus — Simone (2006)
Prisodon (Triplodon) corrugatus — Graf & Cummings (2007)
Triplodon corrugatus — Graf & Cummings (2021)

Mya angulata Wood, 1828
Wood, 1828. Suppl. Index Testac.: 3, pl. 1, fig. 12.
Wood, 1828. Suppl. Index Testac.: 40 [as ‘Hyria corrugata’].
(new name for Hyria corrugata Lamarck, 1819)

Hyria (s.s.) corrugata — Simpson (1900), Simpson (1914)
Hyria corrugata — Haas (1916)
Triplodon (s.s.) corrugatus — Haas (1969)
Prisodon corrugatus — Simone (2006)

Hyria transversa Hupé, 1857
Hupé, 1857. [in] Castelnau, Anim. Nouv. Rares d’Amer. Sud: 79, pl. 15, fig. 1.
Type(s): SYNTYPES MNHN_MP_0308, Bresil.

Hyria (s.s.) transversa — Simpson (1900), Simpson (1914)
Hyria corrugata — Ortmann (1921)
Hyria transversa — Morretes (1949)
Triplodon (s.s.) transversus — Haas (1969)
Prisodon corrugatus — Simone (2006)

Hyria exasperata Sowerby, 1869
Sowerby, 1869. Conch. Icon. 17: pl. 2, sp. 3.

Hyria (s.s.) corrugata — Simpson (1900), Simpson (1914)
Hyria corrugata var. exasperata — F. Baker (1913)
Hyria corrugata — Haas (1916)
Triplodon (s.s.) corrugatus — Haas (1969)
Prisodon corrugatus — Simone (2006)

Hyria latialata Sowerby, 1869
Sowerby, 1869. Conch. Icon. 17: pl. 2, sp. 4.
Type(s): HOLOTYPE BMNH_41-4-29-92, British Guayana.

Hyria (s.s.) latialata — Simpson (1900), Simpson (1914), Haas (1931)
Hyria latialata — Haas (1932)
Triplodon (s.s.) latialatus — Haas (1969)
Prisodon corrugatus — Simone (2006)

Hyria rugosissima Sowerby, 1869
Sowerby, 1869. Conch. Icon. 17: pl. 3, sp. 5.

Hyria (s.s.) rugosissima — Simpson (1900), Simpson (1914), Haas (1931)
Hyria rugosissima — Morretes (1949)
Triplodon (s.s.) rugisissimus [sic] — Haas (1949)
Prisodon (Triplodon) rugosissima — Olsson & Wurtz (1951)
Triplodon (s.s.) rugosissimus — Haas (1969)
Paxyodon syrmathophorus [sic] — Ramírez et al. (2003)
Prisodon corrugatus — Simone (2006)

Unio stevensii Lea, 1871
Lea, 1871. Proc. Acad. Nat. Sci. 23: 188.
Lea, 1874. Jour. Acad. Nat. Sci. 8 [O. 13]: 22 [26], pl. 7, fig. 19.
Type(s): FIGURED SYNTYPE USNM_83901, Yuruari River, S. Am.

Hyria (Triquetrana) stevensi — Simpson (1900), Simpson (1914), Haas (1931)
Prisodon (Triplodon sec. Triquetrana) stevensii — Thiele (1934)
Prisodon (Triquetrana) stevensi — Parodiz & Bonetto (1963)
Triplodon (Triquetrana) stevensii — Haas (1969)
Triplodon (Triquetrana) stevensi — Haas (1969)
Prisodon corrugatus — Simone (2006)
Triplodon stevensii — Bogan (2010)

Harmandia castelneaui Rochebrune, 1904
Rochebrune, 1904. Bull. Mus. Nation. Hist. Natur. 10: 140.
Type(s): SYNTYPES MNHN_IM-2000-1655, Cochinchine [no- South America].

Harmandia castelneaui — Rochebrune (1904), Simpson (1914), Haas (1919)
Hyria (s.s.) corrugata — Haas (1931)
Triplodon (s.s.) corrugatus — Haas (1969)
Harmandia somboriensis — Brandt (1974), IUCN (2011)
Prisodon corrugatus — Simone (2006)
Triplodon corrugatus — Pfeiffer et al. (2018)

Hyria jamauchimensis F. Baker, 1913
F. Baker, 1913. Proc. Acad. Nat. Sci. 65: 664, pl. 27, fig. 8-9.
Type(s): HOLOTYPE (MONOTYPY) ANSP_109373, Rio Jamauchim, Brazil.

Hyria jamauchimensis — F. Baker (1913), Morretes (1949)
Hyria (Triquetrana) jamauchimensis — Haas (1931)
Triplodon (Triquetrana) jamauchimensis — Haas (1969)
Prisodon corrugatus — Simone (2006)

Hyria amazonia Frierson, 1914
Frierson, 1914. Proc. U.S. Nat. Mus. 47: 363, pl. 12.
Type(s): HOLOTYPE USNM_83877, Amazon R., South America.

Hyria (Triquetrana) jamauchimensis — Haas (1931)
Hyria amazonia — Morretes (1949)
Prisodon (Triplodon) amazonia — Olsson & Wurtz (1951)
Triplodon (Triquetrana) jamauchimensis — Haas (1969)
Prisodon corrugatus — Simone (2006)

Hyria wheatleyi Marshall, 1926
Marshall, 1926. Proc. U.S. Nat. Mus. 69(2638): 7, pl. 1, figs. 3, 5; pl. 3, fig. 1.
Type(s): HOLOTYPE USNM_85336, Rio Negro, 1200 m up Amazon, Brazil.

Hyria (Triquetrana) jamauchimensis — Haas (1931)
Hyria wheatleyi — Morretes (1949)
Triplodon (Triquetrana) jamauchimensis — Haas (1969)
Prisodon corrugatus — Simone (2006)

Prisodon (Triplodon) rugosissima savillei Olsson & Wurtz, 1951
Olsson & Wurtz, 1951. Notulae Naturae (239): 5, figs. 11-12.
(intro'd as intra-sp. of Hyria rugosissima Sowerby, 1869)
Type(s): HOLOTYPE ANSP_187179, Rio Mecaya Area, Caqueta [= Japurá] Basin, Colombia.

Prisodon (Triplodon) rugosissima savillei — Olsson & Wurtz (1951)

Hyria rosea Lea, 1852
‘Lefev. Pot.’ Lea, 1852. Synopsis Fam. Naiades: 17.
(intro'd as syn of Hyria corrugata Lamarck, 1819)

Triplodon rugisissimus Haas, 1949
‘Sowerby’ Haas, 1949. Arch. Moll. 78(4//6): 153.
(error for Hyria rugosissima Sowerby, 1869)

Prisodon corrugatus — Simone (2006)

Prisodon amazonica Simone, 2006
‘Frierson’ Simone, 2006. Land. Freshw. Moll. Brazil.: 249.
(error for Hyria amazonia Frierson, 1914)