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Page last updated
Thu 3 September 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 | Rhipidodontini | Diplodon

species Diplodon paranensis (Lea, 1834): synonymy
     114 specimens

Unio paranensis Lea, 1834
Lea, 1834. Trans. Amer. Phil. Soc. 5 [O. 1]: 99 [211], pl. 14, fig. 42.
Type(s): POSSIBLE SYNTYPES ANSP_41798, South America.

Diplodon (Cyclomya s.s.) paranensisSimpson (1900), Simpson (1914)
Unio paranensisCorsi (1900)
Diplodon paranensisMarshall (1917), Bonetto (1959), Parodiz (1968), Quintana (1982), Graf (2000), Pereira et al. (2014), Torres et al. (2018), Graf & Cummings (2021)
Diplodon (Cyclomya) paranensisOrtmann (1921), Pilsbry (1933)
Diplodon (Cyclomya) paranensis paranensisHaas (1931)
Diplodon (Rhipidodonta) paranensisThiele (1934), Figueiras (1965), Haas (1969)
Diplodon (Rhipidodonta) paranaensis [sic]Morretes (1949)
Diplodon (Rhipidodonta) variabilisParodiz & Bonetto (1963), Bonetto (1965)
Diplodon (Rhipidodonta) paranensis paranensisHaas (1969)
Rhipidodonta variabilisSimone (2006), Graf & Cummings (2007)
Rhipidodonta paranensisMansur et al. (2020), Torres et al. (2024)

Unio paraguayanus Martens, 1895
Martens, 1895. S.-Ber. Ges. Naturf. Freunde zu Berlin 1895: 34.

Diplodon paraguayanusSimpson (1900), Simpson (1914)
Diplodon (Cyclomya) paranensisOrtmann (1921)
Diplodon (Cyclomya) paranensis paranensisHaas (1931)
Diplodon (Rhipidodonta) variabilisBonetto (1965)
Diplodon (Rhipidodonta) paranensisFigueiras (1965)
Diplodon delodontus delodontusParodiz (1968), Quintana (1982)
Diplodon (Rhipidodonta) paranensis paranensisHaas (1969)
Rhipidodonta variabilisSimone (2006)

Diplodon (Rhipidodonta) paranaensis Morretes, 1949
‘Lea’ of Authors.
Morretes, 1949. Arqu. Mus. Paranaense 7: 20.
Simone, 2006. Land. Freshw. Moll. Brazil.: 273.

Rhipidodonta variabilisSimone (2006)

Taxonomic History (since 1900)

Diplodon (Cyclomya s.s.) paranensisSimpson (1900), Simpson (1914)
Unio paranensisCorsi (1900)
Diplodon paraguayanusSimpson (1900), Simpson (1914)
Diplodon paranensisMarshall (1917), Bonetto (1959), Parodiz (1968), Quintana (1982), Graf (2000), Pereira et al. (2014), Torres et al. (2018), Graf & Cummings (2021)
Diplodon (Cyclomya) paranensisOrtmann (1921), Pilsbry (1933)
Diplodon (Cyclomya) paranensis paranensisHaas (1931)
Diplodon (Rhipidodonta) paranensisThiele (1934), Figueiras (1965), Haas (1969)
Diplodon (Rhipidodonta) paranaensis [sic]Morretes (1949)
Diplodon (Rhipidodonta) variabilisParodiz & Bonetto (1963), Bonetto (1965)
Diplodon delodontus delodontusParodiz (1968), Quintana (1982)
Diplodon (Rhipidodonta) paranensis paranensisHaas (1969)
Rhipidodonta variabilisSimone (2006), Graf & Cummings (2007)
Rhipidodonta paranensisMansur et al. (2020), Torres et al. (2024)

 
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