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Page last updated
Wed 1 October 2025

The Freshwater Mussels (Unionoida) of the World (and other less consequential bivalves)

FM(U)otW(aolcb) is the web version of the MUSSEL Project Database. Follow the links to browse the data or use the custom Google search field. Either way, you win!

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Bivalvia | Unionoida | Hyrioidea | Hyriidae | Hyriinae | Hyriini

genus Triplodon Spix in Wagner, 1827: synonymy
     2 Recent freshwater species (3 total species)

Triplodon Wagner, 1827
Spix in Wagner, 1827. Test. Fluv. Brasil.: pl. 29.
Type species: Triplodon rugosus Wagner, 1827 (original designation) = Triplodon corrugatus

Triquetrana Simpson, 1900
Simpson, 1900. Proc. U.S. Nat. Mus. 22: 869.
Simpson, 1914. Descr. Cat. Naiades: 1215.
(intro'd as sub-gen. of Hyria Lamarck, 1819)
Type species: Unio stevensii Lea, 1871 (original designation) = Triplodon corrugatus

Hiria Rafinesque, 1831
Rafinesque, 1831. Continuation: 7.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 85.
(error for Hyria Lamarck, 1819)

Triptodon Lea, 1836
Lea, 1836. Synopsis Fam. Naiades: 10 [corrected in the errata].
(error for Triplodon Wagner, 1827)

Trilodon Willard, 1966
Willard, 1966. Harvey Bassler Coll. Peruvian Fossilis: 66, 67, 90.
(error for Triplodon Wagner, 1827)

Taxonomic History (since 1900)

Hyria (s.s.)Simpson (1900), Simpson (1914), Haas (1931)
Hyria (Triquetrana)Simpson (1900), Simpson (1914), Haas (1931)
HarmandiaRochebrune (1904), Simpson (1914), Haas (1919), Brandt (1974), IUCN (2011)
HyriaF. Baker (1913), Haas (1916), Ortmann (1921), Haas (1932), Modell (1942), Morretes (1949)
Prisodon (Triplodon s.s.)Thiele (1934)
Prisodon (Triplodon sec. Triquetrana)Thiele (1934)
Triplodon (s.s.)Haas (1949), Haas (1969), Haas (1969), Johnson (1981)
Prisodon (Triplodon)Olsson & Wurtz (1951), Parodiz & Bonetto (1963), Graf & Cummings (2007)
Prisodon (Triquetrana)Parodiz & Bonetto (1963)
Triplodon (Triquetrana)Haas (1969), Haas (1969)
TriplodonMansur & Valer (1992), Ramírez et al. (2003), Mansur & Pimpão (2008), Bogan (2010), Whelan et al. (2011), ... Olivera-Hyde et al. (2020), Graf & Cummings (2021), Sonowal et al. (2021), Breure et al. (2022), Chen et al. (2025)
PaxyodonRamírez et al. (2003)
PrisodonSimone (2006)

 
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