Cambarus bartonii
species of crustacean
Cambarus bartonii is a species of crayfish native to eastern North America, where it is called the common crayfish or Appalachian brook crayfish.
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. The locality where his specimen was captured is not known, but is thought to be near Philadelphia, Pennsylvania.
Cambarus bartonii lives in fast–flowing, cool, rocky streams as well as shallow lakes, and is found in the Canadian provinces of Ontario, Quebec and New Brunswick, and in the United States from Maine to Alabama. In the south of its range, C. bartonii is restricted to the Appalachian Mountains and their foothills.
Colouration is usually plain dark brown, although mottling is occasionally seen, as is a saddle-shaped marking.
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.
Cambarus bartonii is included as a species of Least Concern on the IUCN Red List. It is listed as a Species of Special Concern in the state of Connecticut.
“Cambarus bartonii” enters the record as species of crustacean. Crown Archives preserves that source wording while asking what Cambarus, bartonii and species can confirm, complicate or overturn.
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This entry incorporates text from “Cambarus bartonii” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.