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 | ... | Ambleminae | Quadrulini | Uniomerus tetralasmus nominal species Unio symmetricus Lea, 1845  Lea, 1845. Proc. Amer. Phil. Soc. 4: 164.
 Lea, 1848. Trans. Amer. Phil. Soc. 10 [O. 4]: 73 [47], pl. 4, fig. 11.
Type(s): HOLOTYPE USNM_85604, Alexandria, La.
= Uniomerus tetralasmus Taxonomic Opinions+ Uniomerus declivis (Say, 1831) — Watters et al., 2009 + Uniomerus tetralasmus (Say, 1830) — Williams et al., 2008 + Uniomerus tetralasmus (Say, 1830) — Parmalee & Bogan, 1998 + Uniomerus tetralasmus (Say, 1831) — Howells et al., 1996 + Uniomerus tetralasmus (Say, 1831) — Vidrine, 1993 + Uniomerus tetralasmus (Say, 1830) — Burch, 1975 + Uniomerus tetralasmus (Say, 1831) — R.I. Johnson, 1972 + Uniomerus tetralasmus (Say, 1831) — R.I. Johnson, 1970 + Uniomerus tetralasmus (Say, 1831) — Haas, 1969 + Elliptio (Uniomerus) tetralasmus (Say, 1831) — Frierson, 1927 + Unio (sec. Uniomerus) tetralasmus Say, 1831 — Simpson, 1914 + Unio (sec. Uniomerus) tetralasmus Say, 1830 — Simpson, 1900 + Unio (s.s.) tetralasmus Say, 1831 — Call, 1900 + Unio tetralasmus Say, 1830 — Call, 1895 = Unio symmetricus Lea — Singley, 1893 = Unio symmetricus — B.H. Wright, 1888 = Margaron (Unio) symmetricus (Lea) — Lea, 1870 = Unio (Niäa) symmetricus Lea — Adams & Adams, 1857 = Unio (Uniomerus) symmetricus Lea, 1845 — Conrad, 1853 = Margaron (Unio) symmetricus (Lea) — Lea, 1852
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