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 | 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 Prisodon Schumacher, 1817: synonymy2 Recent freshwater species (2 total species)
 Paxyodon Schumacher, 1817Schumacher, 1816. Overs. Dansk. Vid. Selsk. Forhandl. Kjobehhaven 1816: 7. [nomen nudum]
 Schumacher, 1817. Essai. Nouv. Syst.: 46, 139.
 Type species: Paxyodon ponderosus Schumacher, 1817 (monotypy) = Prisodon syrmatophorus
 Prisodon Schumacher, 1817Schumacher, 1816. Overs. Dansk. Vid. Selsk. Forhandl. Kjobehhaven 1816: 7. [nomen nudum]
 Schumacher, 1817. Essai. Nouv. Syst.: 46, 139.
 Type species: Prisodon obliquus Schumacher, 1817 (subsequent designation) = Prisodon obliquus
 Hyria Lamarck, 1819Lamarck, 1819. Hist. Natur. Anim. sans Vert. 6: 81.
 Type species: Hyria avicularis Lamarck, 1819 (subsequent designation) = Prisodon obliquus
 Paxiodon Blainville, 1821Blainville, 1821. Dict. Sci. Nat. 22: 187.
 (error for Paxyodon Schumacher, 1817)
 Ilyiria Fleming, 1822Fleming, 1822. Phil. Zool. 2: 506. [nomen nudum]
 Triquetra Lea, 1852Klein, 1753. Tent. Method. Ostrac., etc.: 135. [pre-linnaean]
 Lea, 1852. Synopsis Fam. Naiades: 17.
 Mörch, 1853. Cat. Conch. Yoldi 2: 43.
 (homonym of Blainville, 1828 [Veneridae])
 Type species: Prisodon obliquus Schumacher, 1817 (herein) = Prisodon obliquus
 Prysodon Sabba Stefanescu, 1896Sabba Stefanescu, 1896. Mém. Soc. Géol. France 15: 17.
 (error for Prisodon Schumacher, 1817)
 Hyriana Simpson, 1900Simpson, 1900. Proc. U.S. Nat. Mus. 22: 872.
 Simpson, 1914. Descr. Cat. Naiades: 1223.
 (intro'd as sub-gen. of Prisodon Schumacher, 1817)
 Type species: Unio ortonii Lea, 1868 (original designation) = Prisodon obliquus
 Hyris Blainville, 1821Blainville, 1821. Dict. Sci. Nat. 22: 395.
 (error for Hyria Lamarck, 1819)
 Paxiodonta Deshayes, 1832‘Schumacher’ Deshayes, 1832. Enc. Méth. 3: 712.
 (error for Paxyodon Schumacher, 1817)
 Pachyodon Agassiz, 1846‘Stutchb.’ Agassiz, 1846. Nomencl. Zool. Index Univ.: 270.
 Woodward, 1871. Man. Moll: 434.
 (error for Paxyodon Schumacher, 1817)
Taxonomic History (since 1900)Prisodon (s.s.) — Simpson (1900), Simpson (1914), Thiele (1934), Graf & Cummings (2007) Diplodon — Simpson (1900), Simpson (1914)
 Prisodon (Hyriana) — Simpson (1900), Simpson (1914)
 Prisodon — Ihering (1910), F. Baker (1913), Haas (1916), Ortmann (1921), H.B. Baker (1930), ... Guerra et al. (2019), Mansur et al. (2020), Graf & Cummings (2021), Pfeiffer et al. (2021), Breure et al. (2022)
 Hyria — Haas (1916)
 Physunio (s.s.) — Haas (1920), Haas (1969)
 Paxyodon — Parodiz & Bonetto (1963), Haas (1969), Haas (1969), Mansur & Valer (1992), Mansur et al. (1997), ... Bogan (2010), Pereira et al. (2014), Santos-Neto et al. (2016), Santos-Neto et al. (2018), Mansur et al. (2020)
 Physunio — Brandt (1974)
 Prisodon (Paxyodon) — Graf & Cummings (2007)
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