| Page last updatedWed 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 | Rhipidodontini | Diplodon species Diplodon pfeifferi (Dunker, 1848): synonymy2 specimens
 | Unio pfeifferi Dunker, 1849
  Dunker, 1849. Z. Malak. 5(12): 181. Pfeiffer, 1860. Novit. Conch. 2(13): 151, pl. 39, figs. 4, 9.
 Type(s): TYPE ZMB_108717, Rio Negro, Brazil.
 
 Diplodon (s.s.) granosus — Simpson (1900), Simpson (1914)
 Diplodon (s.s.) granosus multistriatus — Haas (1931), Bonetto (1964), Bonetto (1965), Haas (1969)
 Diplodon burroughianus wheatleyanus — Parodiz (1968)
 Diplodon pfeifferi — IUCN (1996), Pereira et al. (2014), Graf & Cummings (2021)
 Diplodon multistriatus — Simone (2006), Miyahira et al. (2019)
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 Taxonomic History (since 1900)Diplodon (s.s.) granosus — Simpson (1900), Simpson (1914)Diplodon (s.s.) granosus multistriatus — Haas (1931), Bonetto (1964), Bonetto (1965), Haas (1969)
 Diplodon burroughianus wheatleyanus — Parodiz (1968)
 Diplodon pfeifferi — IUCN (1996), Pereira et al. (2014), Graf & Cummings (2021)
 Diplodon multistriatus — Simone (2006), Miyahira et al. (2019)
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