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Federal
Molecular resources combined with morphology and geography to provide insights into the evolutionary history of a wide-ranging freshwater mussel species complex (Unionida: Quadrula)
Department of the Interior —
The freshwater mussel Quadrula quadrula of eastern North America occupies several isolated river drainages along the coastal Gulf of Mexico and northward in the... -
Federal
Pearl darter (Percina aurora) final critical habitat
Department of the Interior —
Pearl darter (Percina aurora) final critical habitat unit coordinates/plot points are provided here as a .txt file. As noted in the final rule (FWS-R4-ES-2020-0062),...