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!

Bivalvia | Unionoida | Unionoidea | Unionidae | Parreysiinae | Coelaturini

genus Nyassunio Haas, 1936: synonymy
     2 Recent valid species (2 total species)

Taxonomic History (since 1900)

Parreysia (s.s.) — Simpson (1900), Simpson (1914)
Unio — E.A. Smith (1904), Pilsbry & Bequaert (1927)
Parreyssia [sic] — Kobelt (1910)
Parreysia — Pilsbry & Bequaert (1927), Leloup (1950)
Nyassunio — Haas (1936), Crowley et al. (1964), Haas (1969), Daget (1998), Graf & Cummings (2007), ... Ortiz-Sepulveda et al. (2020), Graf & Cummings (2021), Bolotov et al. (2022), Bolotov et al. (2022), Bolotov et al. (2024)
Indonaia — Crowley et al. (1964)
Parreysia (Nyassunio) — Haas (1969)
Caelatura [sic] — Appleton (1979), Mandahl-Barth (1988), Slugina (2006)
Coelatura — Daget (1998), Scholz & Glaubrecht (2004)