Alabama orb

The Alabama orb, scientific name Quadrula asperata, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. This species is endemic to the United States.

Alabama orb

The Alabama orb, scientific name Quadrula asperata, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. This species is endemic to the United States.