| Entosphenus | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Hyperoartia |
| Order: | Petromyzontiformes |
| Family: | Petromyzontidae |
| Genus: | Entosphenus Gill, 1862 |
| Type species | |
| Entosphenus tridentatus (Richardson 1836) | |
Entosphenus is a genus of lampreys.
Seven species in this genus are recognized: [1]
The northern lampreys (Petromyzontidae) are a family of lampreys. Northern lampreys have the highest number of chromosomes (164–174) among vertebrates.
The Pacific lamprey is an anadromous parasitic lamprey from the Pacific Coast of North America and Asia. It is a member of the Petromyzontidae family. The Pacific lamprey is also known as the three-tooth lamprey and tridentate lamprey.
The European river lamprey, also known as the river lamprey or lampern, is a species of freshwater lamprey.
The Western brook lamprey is a small (<18 cm), widely distributed, non-parasitic species of jawless fish endemic to the freshwater coastal waterways of the western United States and Canada. Its range extends from the North American Pacific coast from Taku River, southern Alaska, to central California, including Vancouver Island, with major inland distributions in the Columbia and Sacramento-San Joaquin watersheds.
The mountain brook lamprey or Allegheny brook lamprey is a lamprey found in parts of the Mississippi river basin, New York, Pennsylvania, Ohio, and in the Cumberland River and Tennessee River. This fish is jawless with a small sucker mouth and a long, eel-like body. It is fairly small, only growing to about 8 inches (20 cm) in length.
Mordacia is the sole genus of the family Mordaciidae, also known as the southern topeyed lampreys.
The southern brook lamprey is a lamprey found in the Southern United States including Arkansas, Louisiana, Mississippi, Alabama, and Georgia. It is a jawless fish with a sucking mouth on one end of it It can appear to be a small eel, since it is rarely longer than 1 foot in length.
The northern brook lamprey is a freshwater fish in the family Petromyzontidae. It is closely related to the silver lamprey and may represent an ecotype of a single species with I. unicuspis.
Eudontomyzon is a genus of lamprey in the Petromyzontidae family. Most species are found in Eastern Europe.
The Greek lamprey is a species of jawless fish in the Petromyzontidae family. It is endemic to Greece. Its natural habitats are rivers and freshwater springs. It is threatened by habitat loss. This species may be better included in the genus Caspiomyzon. It is the most endangered species of lamprey. It lives only in the Strymon and Louros river basins.
Vladykov's lamprey is a species of lamprey in the Petromyzontidae family. It is found in Austria, Germany, The Czech Republic, Bulgaria, Romania, Serbia, and Montenegro.
The Kern brook lamprey is a species of lamprey in the Petromyzontidae family endemic to the United States. It is found on the east side of San Joaquin Valley, in lower Merced, Kaweah, Kings, and San Joaquin rivers in California. It can grow to up to around 14 centimeters, and is characterized by its grayish brown and white coloring, and black spots on its fins.
Lampetra is a genus of lampreys in the subfamily Petromyzontinae.
The lake lamprey, Entosphenus macrostomus, also known as the Vancouver lamprey or Cowichan lamprey, a recent derivative of the pacific lamprey, is a species of freshwater lamprey endemic to two North American lakes: Lake Cowichan and Mesachie Lake in Vancouver Island, Canada. The lamprey was originally called the Vancouver Island lamprey, until an error in filing shortened it to the Vancouver lamprey. The alternate common name of "Cowichan lamprey" was coined and promoted by the species' describer, Dr. Dick Beamish, who originally identified the species in the 1980s.
The Miller Lake lamprey is a species of lamprey in the Petromyzontidae family endemic to the United States. Its natural habitat is the Miller Lake drainage in the state of Oregon.
Lethenteron is a genus of lamprey in the family Petromyzontidae.
Lampreys are an ancient extant lineage of jawless fish of the order Petromyzontiformes, placed in the superclass Cyclostomata. The adult lamprey may be characterized by a toothed, funnel-like sucking mouth. The common name "lamprey" is probably derived from Latin lampetra, which may mean "stone licker", though the etymology is uncertain. The plural form lamprey is sometimes seen.
Ichthyomyzon is a genus of northern lampreys in the sub-family Petromyzontinae, native to North America.
Tetrapleurodon is a genus of lampreys that are endemic to the Lerma–Chapala basin in west–central Mexico. Both species are threatened.
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