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Page last updated
Thu 17 July 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!


Bivalvia | Unionoida | Hyrioidea | Hyriidae | Hyriinae | Hyriini

genus Prisodon Schumacher, 1817: synonymy
     2 Recent valid species (2 total species)

Paxyodon Schumacher, 1817
Schumacher, 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, 1817
Schumacher, 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, 1819
Lamarck, 1819. Hist. Natur. Anim. sans Vert. 6: 81.
Type species: Hyria avicularis Lamarck, 1819 (subsequent designation) = Prisodon obliquus

Paxiodon Blainville, 1821
Blainville, 1821. Dict. Sci. Nat. 22: 187.
(error for Paxyodon Schumacher, 1817)

Ilyiria Fleming, 1822
Fleming, 1822. Phil. Zool. 2: 506. [nomen nudum]

Triquetra Lea, 1852
Klein, 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, 1896
Sabba Stefanescu, 1896. Mém. Soc. Géol. France 15: 17.
(error for Prisodon Schumacher, 1817)

Hyriana Simpson, 1900
Simpson, 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, 1821
Blainville, 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)
DiplodonSimpson (1900), Simpson (1914)
Prisodon (Hyriana)Simpson (1900), Simpson (1914)
PrisodonIhering (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)
HyriaHaas (1916)
Physunio (s.s.)Haas (1920), Haas (1969)
PaxyodonParodiz & 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)
PhysunioBrandt (1974)
Prisodon (Paxyodon)Graf & Cummings (2007)

 
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