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 | ... | Unionidae | Ambleminae | Quadrulini | Quadrulina | Quadrula quadrula nominal species Unio asper Lea, 1831   Lea, 1831. Trans. Amer. Phil. Soc. 4 [O. 1]: 85 [95], pl. 9, fig. 15.
Type(s): UNKNOWN USNM_84212, Claiborne, Ala. R., Alabama.
= Quadrula quadrula Taxonomic Opinions+ Quadrula quadrula (Rafinesque, 1820) — Lopes-Lima et al., 2019 + Quadrula apiculata (Say, 1829) — Williams et al., 2008 + Quadrula quadrula (Rafinesque, 1820) — Vidrine, 1993 + Quadrula quadrula (Rafinesque, 1820) — R.I. Johnson, 1980 + Quadrula quadrula (Rafinesque, 1820) — Burch, 1975 = Quadrula (s.s.) quadrula aspera (Lea, 1831) — Haas, 1969 = Quadrula (s.s.) quadrula-aspera (Lea, 1831) — Frierson, 1927 = Quadrula aspera (Lea) — Utterback, 1915 = Quadrula (sec. Theliderma) aspera (Lea, 1831) — Simpson, 1914 + — de Gregorio, 1914 = Quadrula aspera (Lea, 1831) — Ortmann, 1912 = Quadrula (sec. Theliderma) asper (Lea, 1831) — Simpson, 1900 = Unio asper Lea — Singley, 1893 = Unio (sec. Quadrula) apiculatus vr. asper Lea, 1831 — Paetel, 1890 = Unio asper Lea — B.H. Wright, 1888 = Margaron (Unio) asper (Lea) — Lea, 1870 = Unio asper Lea, 1831 — Reeve, 1864 = Unio (Quadrula) asper Lea — Adams & Adams, 1857 = Unio asper Lea, 1832 — Conrad, 1853 = Unio (Quadrula) asper Lea — Mørch, 1853 = Margaron (Unio) asper (Lea) — Lea, 1852 = Unio asper Lea — Hanley, 1843 = Margarita (Unio) asper Lea — Lea, 1838 + Unio apiculatus Say, 1829 — Conrad, 1837 = Margarita (Unio) asper (Lea, 1831) — Lea, 1836 + Unio apiculatus Say — Ferussac, 1835 = Unio asper — Jay, 1835
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