Cambarus setosus

{{Short description|Species of crayfish}}

{{Speciesbox

| image =

| status = NT

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=DiStefano, R.|author2= Thoma, R.F. |author3= Cordeiro, J. |name-list-style=amp |year=2021 |title= Cambarus setosus |amends= 2010 |page= e.T153995A198269186 |doi=10.2305/IUCN.UK.2021-2.RLTS.T153995A198269186.en|access-date=8 February 2023}}

| status2 = G3

| status2_system = TNC

| status2_ref = {{cite web |title=Cambarus setosus |url=https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.116048/Cambarus_setosus |website=NatureServe Explorer An online encyclopedia of life |version=7.1|publisher=NatureServe|accessdate= 8 February 2023}}

| genus = Cambarus

| species = setosus

| authority = Faxon & Garman, 1889

| synonyms = Cambarus ayersii Steele, 1902

| synonyms_ref = {{cite web |url=https://academic.oup.com/jcb/article/37/5/615/4060680?login=false |work=The Crayfish and Lobster Taxonomy Browser |title=An updated classification of the freshwater crayfishes (Decapoda: Astacidea) of the world, with a complete species list |author1=Keith A Crandall |author-link1=Keith A. Crandall |author2=Sammy De Grave. |date=2017 |volume=37 |issue=5 |pages=615–653 |publisher=Oxford University Press|doi=10.1093/jcbiol/rux070 }}

}}

Cambarus setosus, the bristly cave crayfish, is a freshwater crayfish native to Missouri and Arkansas in the United States. It is a cave-dwelling species known from 164 localities with the majority on the Springfield Plateau in southwestern Missouri.