Cambarus bartonii

Cambarus bartonii
Conservation status
Least Concern  (IUCN 3.1)[1]
Secure  (NatureServe)[2]
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Malacostraca
Order:	Decapoda
Suborder:	Pleocyemata
Family:	Cambaridae
Genus:	Cambarus
Species:	C. bartonii
Binomial name
Cambarus bartonii (Fabricius, 1798)
Synonyms [3]
Astacus bartonii Astacus ciliaris (Rafinesque, 1817) Astacus pusillus (Rafinesque, 1817) Cambarus montanus (Girard, 1852) Cambarus pusillus (Girard, 1852)

Cambarus bartonii is a species of crayfish native to eastern North America, where it is called the common crayfish^[3] or Appalachian brook crayfish.^[2]

Cambarus bartonii was the first crayfish to be described from North America, when Johan Christian Fabricius published it under the name Astacus bartonii in his 1798 work Supplementum entomologiae systematicae.^[4] The locality where his specimen was captured is not known, but is thought to be near Philadelphia, Pennsylvania.^[3]

Cambarus bartonii lives in fast–flowing, cool, rocky streams as well as shallow lakes,^[5] and is found in the Canadian provinces of Ontario, Quebec and New Brunswick, and in the United States from Maine to Alabama.^[2] In the south of its range, C. bartonii is restricted to the Appalachian Mountains and their foothills.^[3]

Colouration is usually plain dark brown, although mottling is occasionally seen, as is a saddle-shaped marking.^[6]

Several subspecies of C. bartonii have been recognised, but it is unclear how advisable this is, and work is ongoing to determine patterns of infraspecific variation.^[7]

Cambarus bartonii is included as a species of Least Concern on the IUCN Red List.^[1]

1. ^ ^{a b} Cordeiro, J.; Hamr, P.; Skelton, C. & Thoma, R.F. (2010). "Cambarus bartonii". IUCN Red List of Threatened Species. 2010 e.T153748A4540162. doi:10.2305/IUCN.UK.2010-3.RLTS.T153748A4540162.en. Retrieved 20 November 2021.
2. ^ ^{a b c} "Cambarus bartonii". NatureServe Explorer. 7.1. Retrieved August 20, 2007.
3. ^ ^{a b c d} James W. Fetzner Jr. (December 6, 2006). "Cambarus (Cambarus) bartonii bartonii (Fabricius, 1798)". Crayfish Taxon Browser. Carnegie Museum of Natural History. Archived from the original on September 27, 2007. Retrieved August 20, 2007.
4. ^ Horton H. Hobbs Jr. (1942). "A generic revision of the crayfishes of the subfamily Cambarinae (Decapoda, Astacidae) with the description of a new genus and species". American Midland Naturalist. 28 (2). The University of Notre Dame: 334–357. doi:10.2307/2420820. JSTOR 2420820.
5. ^ Simone Rose. "The Crayfish". McMaster University. Archived from the original on July 6, 2007. Retrieved August 20, 2007.
6. ^ Aimee H. Fullerton. "Cambarus (Cambarus) bartonii (Fabricius 1798)". The Crayfishes of North Carolina. North Carolina Wildlife Resources Commission. Archived from the original on September 28, 2007. Retrieved August 20, 2007.
7. ^ Keith A. Crandall; James W. Fetzner Jr. & Horton H. Hobbs Jr. (January 1, 2001). "Cambarus (Cambarus) bartonii carinirostris Hay 1914". Tree of Life Web Project.

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