The Unionidae are a family of freshwater mussels, the largest in the order Unionida, the bivalve molluscs sometimes known as river mussels, or simply as unionids.
Unionida is a monophyletic order of freshwater mussels, aquatic bivalve molluscs. The order includes most of the larger freshwater mussels, including the freshwater pearl mussels. The most common families are the Unionidae and the Margaritiferidae. All have in common a larval stage that is temporarily parasitic on fish, nacreous shells, high in organic matter, that may crack upon drying out, and siphons too short to permit the animal to live deeply buried in sediment.
Epioblasma is a North American genus of freshwater mussels, aquatic bivalve mollusks in the family Unionidae, the river mussels. Most of the species in this genus have been lost in modern times, and the entire genus is threatened with the possibility of extinction.
Lampsilis abrupta, the pink mucket or pink mucket pearly mussel, 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.
Lampsilis bracteata, also known as the Texas fatmucket, is a species of freshwater mussel in the family Unionidae, the river mussels. This species is endemic to the tributaries of the Colorado River within the Edwards Plateau region in Texas, the United States. Populations from the upper Guadalupe River basin are now assigned to a distinct species, Lampsilis bergmanni. The two species are morphologically indistinguishable but genetically distinct.
Lampsilis cardium is a species of freshwater mussel in the family Unionidae, the river mussels. It is known commonly as the plain pocketbook. It is widespread in eastern North America, where it is native to the Mississippi River and Great Lakes drainage systems.
Lampsilis cariosa, the yellow lampmussel, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels.
Lampsilis fullerkati, the Waccamaw fatmucket, is a former species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. This former species is endemic to the United States. It is now considered synonymous with Lampsilis radiata.
Lampsilis ovata, or pocketbook mussel, is a species of freshwater mussel, a bivalve mollusk in the family Unionidae, the river mussels. This species is endemic to eastern North America.
Hamiota perovalis, the orangenacre mucket or orange-nacre mucket, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels.
Lampsilis powellii is a rare species of freshwater mussel known by the common name Arkansas fatmucket. It is endemic to Arkansas in the United States, where it occurs in the Ouachita, Saline, and Caddo River systems. It is one of two mussels endemic to Arksansas, the other being speckled pocketbook. It is a federally listed threatened species of the United States.
Lampsilis rafinesqueana, the Neosho mucket or Neosho pearly mussel, is a species of North American freshwater mussel endemic to Arkansas, Oklahoma, Illinois, Missouri and Kansas.
Lampsilis streckeri, the speckled pocketbook, is a species of freshwater mussel in the family Unionidae, the river mussels. It is endemic to Arkansas in the United States, where it is threatened by habitat loss. It is a federally listed endangered species of the United States.
Lampsilis virescens, the Alabama lamp naiad, Alabama lamp pearly mussel or Alabama lampmussel, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels.
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.
Ptychobranchus is a genus of freshwater mussels in the family Unionidae.
Lampsilis fasciola, the wavy-rayed lampmussel, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels.
Hamiota is a genus of freshwater mussels, aquatic bivalve mollusks in the family Unionidae, the river mussels.
Ambleminae is a subfamily of freshwater mussel in the family Unionidae. They are found throughout much of eastern North America south to Central America, although fossils are also known from Siberia. Some species have also been introduced to East Asia. They are the most speciose radiation of the Unionidae, with more than 300 species.
Lampsilis radiata, also known as the eastern lampmussel, is a species of freshwater mussel in the family Unionidae. It is native to the north Atlantic coast of North America.
