The yellowcheek darter is a species of freshwater ray-finned fish, a darter from the subfamily Etheostomatinae, part of the family Percidae, which also contains the perches, ruffes and pikeperches. It is endemic to the eastern United States where it is only known to occur in the state of Arkansas in the Little Red River. It inhabits medium-sized and smaller rivers in rocky riffles with strong current. This species can reach a length of 7.2 centimetres (2.8 in) TL though most only reach about 4.9 centimetres (1.9 in).
Cumberlandia monodonta is a freshwater mussel endemic to the United States. Currently, C. monodonta is listed as an endangered species by the U.S. Fish and Wildlife Service and the International Union for Conservation of Nature.
The Chipola slabshell is a part of the phylum Mollusca and the class Bivalvia. This species has suffered a large decrease with upwards of 75% of habitat lost. It is now confined to only a few remnant sites in small drainages within the Chipola River. The federal Endangered Species Act protects it as a designated threatened species by Florida’s Endangered and Threatened Species Rule.
The Cumberlandian Combshell is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae. This species is endemic to the United States, found mainly in the states of Tennessee and Virginia. This mussel resides in medium-sized streams to large rivers. The combshell is an endangered species and protected under the Endangered Species Act of 1973. The combshell is threatened by habitat modifications and pollution.
The Magazine Mountain middle-toothed snail, also known as the Magazine Mountain shagreen, scientific name Inflectarius magazinensis, is a species of small, air-breathing, land snails, terrestrial pulmonate gastropod molluscs in the family Polygyridae.
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 is a genus of freshwater mussels, aquatic bivalve mollusks in the family Unionidae, the river mussels. There are over 100 species in the genus.
The lined pocketbook was a species of freshwater river mussel, an aquatic bivalve in the family Unionidae the river mussels. This species was endemic to the United States. It is now extinct.
Lampsilis bracteata, also known as the Texas fatmucket, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels.
Lampsilis cariosa, the yellow lampmussel, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels.
Lampsilis dolabraeformis is a species of freshwater mussel in the family Unionidae, the river mussels. It is known commonly as the Altamaha pocketbook. It is endemic to Georgia in the United States, where it is known only from the Altamaha River system.
Lampsilis higginsii is a rare species of freshwater mussel known as Higgins' eye pearly mussel or simply Higgins' eye. It is endemic to the United States, where it occurs in the upper Mississippi River and the drainages of some of its tributaries. It is threatened by the introduced zebra mussel. Lapsilis higginsii is a federally listed endangered species.
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.
Leptodea leptodon, the scaleshell mussel or scale shell, is a species of freshwater mussel in the family Unionidae, the river mussels. This aquatic bivalve mollusk has disappeared from much of its historical range. It is endemic to the United States, where it is now present in four or fewer states; it is only found with any regularity in Missouri. It is a federally listed endangered species of the United States.
The Louisiana pearlshell, Margaritifera hembeli, is a rare species of bivalve mollusk in the family Margaritiferidae. This freshwater mussel is native to Louisiana in the United States, and was previously present also in Arkansas. It grows to a length of about 10 cm (4 in) and lives on the sand or gravel stream-bed in riffles and fast flowing stretches of small streams. Its life cycle involves a stage where it lives parasitically inside a fish. This mollusk is sensitive to increased sedimentation and cannot tolerate impoundments. Because of its limited range and its population decline, the International Union for Conservation of Nature has rated this mollusk as being "critically endangered".
Potamilus capax, the fat pocketbook pearly mussel or fat pocketbook, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels.
Villosa trabalis, the Cumberland bean pearly mussel, Cumberland bean, or purple bean, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae.
The Canoe Creek clubshell, also known as the Canoe Creek pigtoe, is an endangered species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels.
