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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 | ... | Unionoidea | Unionidae | Ambleminae | Quadrulini | Quadrulina

genus Cyclonaias Pilsbry in Ortmann & Walker, 1922: synonymy
     1 Recent valid species (1 total species)

Rotundaria Agassiz, 1852
‘Rafinesque’ of Authors.
Agassiz, 1852. Arch. Naturg. 18(1): 48.
Simpson, 1900. Proc. U.S. Nat. Mus. 22: 765.
Ortmann, 1909. Ann. Carnegie Mus. 5: 201.
Ortmann, 1910. Nautilus 23(11): 140.
Ortmann, 1912. Ann. Carnegie Mus. 8: 257.
Simpson, 1914. Descr. Cat. Naiades: 811.
Utterback, 1915. Amer. Midl. Nat. 4(4): 149.
Ortmann, 1918. Proc. Amer. Phil. Soc. 57(6): 543.
Haas, 1929. Senckenbergiana 11: 333.
Haas, 1930. Senckenbergiana 12(6): 319.
(reference to Rotundaria Rafinesque, 1820)
Type species: Obliquaria (Rotundaria) tuberculata Rafinesque, 1820 = Cyclonaias tuberculata

Cyclonaias Ortmann & Walker, 1922
Pilsbry in
Ortmann & Walker, 1922. Occ. Pap. Mus. Zool. Univ. Mich. (112): 18.
Type species: Obliquaria (Rotundaria) tuberculata Rafinesque, 1820 (orig. desig.) = Cyclonaias tuberculata

Taxonomic History (since 1900)

Quadrula (Rotundaria)Simpson (1900), Ortmann (1909), Ortmann (1910), Simpson (1914)
Unio (s.s.)Call (1900)
QuadrulaOrtmann (1909), Ortmann (1909), Vanatta (1915)
RotundariaOrtmann (1910), Ortmann (1912), Utterback (1915), Utterback (1915), Ortmann (1918), Thiele (1934), Campbell & Lydeard (2012), Campbell & Lydeard (2012)
Uniode Gregorio (1914)
CyclonaiasOrtmann & Walker (1922), Ortmann (1924), Ortmann (1925), F.C. Baker (1928), Haas (1969), ... FMCS (2021), Neemuchwala et al. (2023), Hopper et al. (2023), Hauck et al. (2023), Keogh et al. (2024)
Quadrula (Cyclonaias)Frierson (1927), Haas (1930)

 
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