Our freshwater mussels are not only the most overlooked and underappreciated of our native fauna, they are disappearing faster than most species in the U.S. Tenessee, my home state, has recorded at least 150 of the 300 known species in the U.S. We have the second-most diverse account of species next to Alabama. At least 40 species are on the Federal Endangered Species List, and many are already extinct or extirpated. Others can only be found in one or two isolated locations in the state. These creatures are one of the most critical indicator species for water quality, and truly deserve our appreciation.