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Orconectes is a genus of cave dwelling freshwater crayfish, endemic to suitable habitats in the eastern United States.Surface dwelling species, formerly categorised here, were moved to Faxonius in 2017.
From 1964 until recent years, the Hell Creek Cave crayfish was only believed to exist in the cave system that is its namesake. [9] Yet in 2005, a second population of crayfish was found in Nesbitt Spring cave in the same county. Then in 2010, a third population was discovered at an upwelling near Town Branch River in Yellville, Arkansas. These ...
This crayfish was first described to science as a new species in 1987. [3] There has been little formal study of this species due to its rarity. [5]It has been postulated that the four subterranean crayfish species inhabiting the Ozarks, including Cambarus aculabrum, derive from a common epigean ancestor species that gained access to a historic cave channel in the Ozark Plateau.
The genus Cambarus is the second largest freshwater crayfish genus inhabiting the Northern Hemisphere, with only sixty fewer species than the genus Procambarus. [2] Though Cambarus are varied across species, the two terminal elements that make up the male form I gonopod form ninety degree angles with the central appendage, allowing for their identification.
A troglobite (or, formally, troglobiont) is an animal species, or population of a species, strictly bound to underground habitats, such as caves.These are separate from species that mainly live in above-ground habitats but are also able to live underground (eutroglophiles), and species that are only cave visitors (subtroglophiles and trogloxenes). [1]
Procambarus clarkii, known variously as the red swamp crayfish, Louisiana crawfish or mudbug, [3] is a species of cambarid crayfish native to freshwater bodies of northern Mexico, and southern and southeastern United States, but also introduced elsewhere (both in North America and other continents), where it is often an invasive pest.
Cambarus obeyensis, the Obey crayfish, is a species of crayfish in the family Cambaridae. It is found in North America. [2] [3] [1] The IUCN conservation status of Cambarus obeyensis is "CR", critically endangered. The species faces an extremely high risk of extinction in the immediate future. The population is decreasing.
Cambarus nerterius, the Greenbrier cave crayfish, [1] [2] is a species of crayfish in the family Cambaridae. It is endemic to the state of West Virginia in the United States . It is found only in or immediately adjacent to caves in Greenbrier and Pocahontas counties, and is included on the IUCN Red List as a Near Threatened species.
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