| Reginaia ebenus | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Bivalvia |
| Order: | Unionida |
| Family: | Unionidae |
| Genus: | Reginaia |
| Species: | R. ebenus |
| Binomial name | |
| Reginaia ebenus (I. Lea, 1831) | |
| Synonyms | |
| |
Reginaia ebenus is a species of mussel. [1] [2] [3] It goes by the common name ebonyshell. [1] [2] [4]
The species is listed as least concern by the IUCN, [1] but is endangered in Missouri [5] and Minnesota. [6]
Originally the native range for this extended from around the Twin Cities in Minnesota and the Upper Mississippi, and went all the way downstream to the Gulf of Mexico. Then in 1913, a dam was built on the Mississippi River at Keokuk, Iowa cutting off the northern home range for breeding ebonyshells. [7]
The species was once in the genus Fusconaia but is currently in Reginaia. [1]
It has been found in states like Minnesota, Missouri, Wisconsin, Illinois, Indiana, Ohio, West Virginia and Oklahoma. [1]
In Minnesota pollution and dams have been a cause for its decline. [6]
The Mississippi River is the second-longest river and chief river of the second-largest drainage system in North America, second only to the Hudson Bay drainage system. From its traditional source of Lake Itasca in northern Minnesota, it flows generally south for 2,340 miles (3,766 km) to the Mississippi River Delta in the Gulf of Mexico. With its many tributaries, the Mississippi's watershed drains all or parts of 32 U.S. states and two Canadian provinces between the Rocky and Appalachian mountains. The main stem is entirely within the United States; the total drainage basin is 1,151,000 sq mi (2,980,000 km2), of which only about one percent is in Canada. The Mississippi ranks as the thirteenth-largest river by discharge in the world. The river either borders or passes through the states of Minnesota, Wisconsin, Iowa, Illinois, Missouri, Kentucky, Tennessee, Arkansas, Mississippi, and Louisiana.
The brown bullhead is a fish of the family Ictaluridae that is widely distributed in North America. It is a species of bullhead catfish and is similar to the black bullhead and yellow bullhead. It was originally described as Pimelodus nebulosus by Charles Alexandre Lesueur in 1819, and is also referred to as Ictalurus nebulosus.
The white crappie is a freshwater fish found in North America, one of the two species of crappies. Alternate common names for the species include goldring, silver perch, white perch and sac-a-lait. USS Goldring is named for the fish. The genus name Pomoxis refers to crappies' sharp operculum, while the species name annularis means 'having rings', i.e., it has vaguely vertical bars on the body.
The eastern elk is an extinct subspecies or distinct population of elk that inhabited the northern and eastern United States, and southern Canada. The last eastern elk was shot in Pennsylvania on September 1, 1877. The subspecies was declared extinct by the United States Fish and Wildlife Service in 1880. Another subspecies of elk, the Merriam's elk, also became extinct at roughly the same time.
The James River is a 130-mile-long (210 km) river in southern Missouri. It flows from northeast Webster County until it is impounded into Table Rock Lake. It is part of the White River watershed. The river forms Lake Springfield and supplies drinking water for the city of Springfield.
The Upper Mississippi River is the portion of the Mississippi River upstream of St. Louis, Missouri, United States, at the confluence of its main tributary, the Missouri River.
The pallid sturgeon is an endangered species of ray-finned fish, endemic to the waters of the Missouri and lower Mississippi river basins of the United States. It may have even reached the St. Croix River before colonization.
The crystal 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. This small North American fish is found in small, moderate, and swift rivers in the drainage basins of the Mississippi and Ohio Rivers. It is now extirpated from a majority of its range along the Ohio River.
The skipjack herring is a North American, migratory, fresh- and brackish water fish species in the herring family Clupeidae. The name skipjack shad comes from the fact that it is commonly seen leaping out of the water while feeding. Other common names include blue herring, golden shad, river shad, Tennessee tarpon, and McKinley shad. The skipjack shad is restricted to the Gulf of Mexico drainage basins. Skipjack are found in clear to moderately turbid water in areas with flow. Because they are a migratory species, dams often impede their reproduction. Records suggest that this species was much more abundant in the Upper Mississippi River basin before it was impounded. Currently, skipjack is most abundant in the Upper Mississippi River below the mouth of the Ohio River. They are known as an "early-run" species as they migrate to spawn in the early spring.
The shiny pigtoe is a species of bivalve in the family Unionidae. It is endemic to the United States.
Fusconaia cuneolus, the fine-rayed pigtoe pearly mussel or fine-rayed pigtoe, is a species of bivalve in the family Unionidae. It is native to Tennessee, Alabama, and Virginia in the United States, in each of which its population has declined severely. It is a federally listed endangered species of the United States.
Fusconaia escambia, the narrow pigtoe, is a freshwater bivalve mussel found in Alabama and northwestern Florida. The narrow pigtoe was first discovered in the Escambia River in Alabama and Florida.
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.
The round ebonyshell is a species of freshwater mussel, an aquatic bivalve mollusk.
The harlequin darter is a species of ray-finned fish, a darter from the subfamily Etheostomatinae, part of the family Percidae which includes the perches, ruffes and pike-perches. It is endemic to the eastern half of the United States.
Noturus exilis, also called the slender madtom, is a species of the catfish family Ictaluridae. Ictaluridae includes bullheads, madtoms, channel catfish, and blue catfish. Noturus exilis is found in the central portion of the Mississippi River basin, but is most abundant in Ozarkian streams. Slender madtoms occur west of the Mississippi River in the Ozarks of Oklahoma, Arkansas, and Missouri north to southern Wisconsin and Minnesota. It also occurs east of the Mississippi River in the uplands of Alabama, Tennessee, and Kentucky in the Tennessee, Cumberland, and Green drainages. Nelson first described Noturus exilis in 1876. The slender madtom is moderately large with a terminal to sub terminal mouth, flat head, small eyes, and black marginal bands on the median fins. Most slender madtoms are less than 90 millimetres (3.5 in). Noturus flavus and Noturus nocturnus are rather similar in shape and coloration to Norturus exilis. Slender madtoms inhabit small to medium-sized streams, in riffle and flowing pool habitats with coarse gravel to slab rock substrates. The presence of a shelter object, such as a large rock, seems to be important in habitat selection.
The Alabama shad is an anadromous species of clupeid fish endemic to the United States where it breeds in medium to large flowing rivers from the Mississippi River drainage to the Suwannee River, Florida, as well as some other Gulf coast drainages. The biology of this fish is little known but it has become increasingly rare. The International Union for Conservation of Nature rated it "near threatened" in 2020 and the United States National Marine Fisheries Service has listed it as a Species of Concern. A principal reason for its decline is thought to be the many locks and dams blocking access for the fish to up-river spawning grounds.
Reginaia is a genus of freshwater mussels, aquatic bivalve mollusks that is native to North America.
Faxonius lancifer, the shrimp crayfish, is a species of crayfish in the family Cambaridae. It is widespread in the South-Eastern United States.
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