The fountain 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 found in the headwaters of only two rivers in Texas, United States: the Comal River and the San Marcos River. It is generally smaller than 3 cm (1.2 in) long and feeds on small invertebrates. It is a federally listed endangered species of the United States and is also listed as endangered by the IUCN.
The watercress 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 from the Black Warrior River drainage basin near Birmingham, Alabama.
The Okaloosa 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 indigenous to freshwater streams and tributary systems in Okaloosa and Walton Counties in northwest Florida.
The redband 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 state of Tennessee in the eastern United States.
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).
Etheostoma osburni, the candy darter or finescale saddled darter, is a species of fish in the family Percidae, a member of the group known as darters. This species is endemic to the eastern United States where it is known only from the Kanawha River system in the states of Virginia and West Virginia.
The Bayou darter is a rare 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 western Mississippi in the United States, where it is found only in the Bayou Pierre River and its tributaries. Its typical habitat is fast-flowing creeks and streams, in riffles and in areas between riffles with firm gravel bottoms. It feeds on small insects and their larvae. Breeding probably takes place twice a year, in spring and late summer. The population of this fish is declining due to loss of suitable habitat. This is caused by siltation and pollution, particularly erosion caused by changes in land use. The International Union for Conservation of Nature has assessed its conservation status as being "endangered".
The striated 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. It occurs in the Duck River system in Tennessee. It inhabits rocky pools in creeks. This species can reach a length of 5.6 centimetres (2.2 in) TL though most only reach about 3.8 centimetres (1.5 in).
The greenside 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 inhabits swift riffles in the eastern United States and southern Ontario.
The bluemask 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. It is a federally listed endangered species of the United States. This fish was not formally described until 2009, but it was added to the US Endangered Species List in 1993. During breeding, the male has bright blue patches on its head and other areas. This fish is found only in the Caney Fork River system, a tributary of the Cumberland River in Tennessee. The species name akatulo comes from the Cherokee for "mask", referring to the solid blue coloration on the lower face of the fish.
The fringed 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 occurs in the drainage of the Cumberland River, the Duck River system, the Shoal Creek system, and the tributaries of the Reelfoot Lakes of Kentucky, Tennessee, and Alabama. It is an inhabitant of small streams and rocky pool and nearby riffles where they prey on insect larvae and nymphs, as well as small crustaceans. This species can reach a length of 10 cm (3.9 in).
The cherry 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 upper Caney Fork system of the Cumberland River drainage in the U.S. state of Tennessee.
The greenbreast 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 southeastern United States, where it occurs in the systems of the Alabama River and the Black Warrior River. It is an inhabitant of streams and rocky riffles of creeks and smaller rivers. This species can reach a length of 7.9 cm (3.1 in), though most only reach about 5 cm (2.0 in).
The Highland Rim 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 Tennessee and Kentucky in the Barren River system. This species can reach a length of 5.6 centimetres (2.2 in) SL.
The headwater 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 found in Kentucky and Tennessee in the upper Green River system down to the Mud River, in the Cumberland River and upper Salt River systems. It is an inhabitant of streams up to about 5 metres (16 ft) wide with gravel or cobble substrates. Males of this species can reach a length of 6.2 centimetres (2.4 in) SL while females only reach 5.7 centimetres (2.2 in). The headwater darter was first formally described in 2002 by Patrick A. Ceas and Brooks M. Burr With the type locality given as Koger Creek, which is in the drainage of the Wolf River, about 0.8 kilometers northwest of Rolan, Kentucky along Kentucky Route 415 at the confluence of McIver Creek in Clinton County. The specific name honors the American ichthyologist Lawrence M. Page of the Florida Museum of Natural History.
The lollipop 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. Lollipop darters are approximately 1.4 to 2.4 inches long.
The blackfin 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 occurs in the Tennessee River drainage, being found from the Paint Rock River to the Duck River system. It is an inhabitant of small rivers and creeks, living in small pools and nearby riffles. This species can reach a length of 8.8 centimetres (3.5 in) TL.
The spottail 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. It is found in the Ohio River basin and in the Red River system of the Cumberland River drainage. It inhabits rocky pools and nearby riffles of flowing waters up to the size of small rivers.
The Swannanoa 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 occurs in the drainage of the Tennessee River. It prefers flowing water in riffles in cool, clear mountain streams, with boulder substrates. The diet and natural history of this species have been little studied but are probably similar to those of its close relative, the greenside darter. The population trend of this fish seems to be stable and it is a common species with numerous sub-populations over its limited range, and the International Union for Conservation of Nature has assessed its conservation status as being of "least concern".
The rush darter is a rare 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 Alabama in the United States, where it occurs in three river systems. It was federally listed as an endangered species of the United States on August 9, 2011.
