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 | ... | Quadrulini | Quadrulina | Quadrula quadrula nominal species Unio speciosus Lea, 1862  Lea, 1862. Proc. Acad. Nat. Sci. 14: 168.
 Lea, 1862. Jour. Acad. Nat. Sci. 5 [O. 9]: 207 [29], pl. 31, fig. 276.
Type(s): HOLOTYPE USNM_84172, Leon Co., Texas.
= Quadrula quadrula Taxonomic Opinions+ Quadrula apiculata (Say, 1829) — R.I. Johnson, 1999 + Quadrula quadrula (Rafinesque, 1820) — Burch, 1975 = Quadrula (s.s.) quadrula speciosa (Lea, 1862) — Haas, 1969 = Quadrula (s.s.) quadrula-speciosa (Lea, 1862) — Frierson, 1927 = Quadrula (sec. Theliderma) speciosa (Lea, 1862) — Simpson, 1914 + — de Gregorio, 1914 = Quadrula speciosa (Lea) — Ortmann, 1910 = Quadrula (sec. Theliderma) speciosa (Lea, 1862) — Simpson, 1900 = Unio speciosus Lea — Call, 1895 = Unio speciosus Lea — Singley, 1893 = Unio speciosus Lea — B.H. Wright, 1888 = Margaron (Unio) speciosus (Lea) — Lea, 1870 = Unio speciosus Lea, 1862 — Sowerby, 1868
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