Epioblasma arcaeformis (Lea)
|Arc-Form Pearly Mussel;
|syn. Dysnomia arcaeformis (Lea), Margarita arcaeformis (Lea), Plagiola arcaeformis (Lea), Truncilla arcaeformis (Lea), Unio arcaeformis (Lea), Unio nexus (Say)|
USA: Alabama; Livingston County, Lyon County, Pulaski County, Todd County / Kentucky; Tennessee; Virginia
extinction date: ca. 1940 (?)
|This species occurred in the
larger rivers of the Cumberland and the Tennessee River systems, which
stretch over four US-American states. These river systems, on the one
hand, were built out for ship traffic, and, on the other hand, were dammed
up in parts.
Hence the species' habitat became destroyed.
Arc-Form Pearly Mussel (Epioblasma arcaeformis)
Depiction from: 'T. A. Conrad: Monography of the family Unionidae; or Naiades of Lamarck (freshwater bivalve shells) of North America. Philadelphia, J. Dobson, 1836'