Atlanticoncha
Atlanticoncha ochracea, the tidewater mucket, is a species of freshwater mussel, an aquatic bivalve mollusc in the family Unionidae, the river mussels. Formerly classified in the now-defunct genus Leptodea, it is now considered the only member of the monotypic genus Atlanticoncha.
This species is native to the east coast of the United States and Canada.