Biology:Orconectes

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Short description: Genus of crayfish

Orconectes
Unidentified Orconectes
Scientific classification e
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Malacostraca
Order: Decapoda
Suborder: Pleocyemata
Family: Cambaridae
Genus: Orconectes
Cope, 1872
Type species
Orconectes inermis
Cope, 1872

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.[1]

Due to their subterranean habitat, they are usually depigmented, often blind, and are long-lived. Ages of 176 years have been claimed for O. australis, though this was reduced to ≤22 years in a 2012 study.[2]

Taxonomy

The genus Orconectes was erected in 1872 by Edward Drinker Cope to house Astacus pellucidus (now Orconectes pellucidus) and his new species, Orconectes inermis.[3]

Prior to the 2017 review by Oxford university, the genus contained 85 species in 11 subgenera. The Faxonius subgenus was raised to a full genus, and the majority of species formerly recorded as Orconectes were moved there. Following the review, approximately 8 species are known:[1]

O. pellucidus (Mammoth Cave, Kentucky, USA)


Scientific name Authority Common name Red List status[4] Type locality
O. australis (Rhoades, 1941) southern cave crayfish 1 LC Shelta Cavern, Madison County, Alabama
O. barri Buhay & Crandall, 2008 Cumberland Plateau cave crayfish 2 DD Tonya's Cave, Wayne County, Kentucky
O. incomptus Hobbs & Barr, 1972 Tennessee cave crayfish 3 VU Cherry Cave, Jackson County, Tennessee
O. inermis Cope, 1872 ghost crayfish 1 LC Wyandotte Caves, Crawford County, Indiana
O. i. testii (Hay, 1891) unarmed crayfish 1 LC Mayfield's Cave, Monroe County, Indiana
O. packardi Rhoades, 1944 Appalachian cave crayfish 4 EN Cumberland Crystal Cave, Pulaski County, Kentucky
O. pellucidus (Tellkampf, 1844) Mammoth Cave crayfish 1 LC Mammoth Cave National Park, Kentucky
O. sheltae Cooper & Cooper, 1997 Shelta cave crayfish 5 CR Shelta Cave, Madison County, Alabama
O. stygocaneyi Hobbs III, 2001 Caney Mountain cave crayfish 1 LC Mud Cave, Caney Mountain Conservation Area, Ozark County, Missouri

References

External links

Wikidata ☰ Q1311791 entry