''Orconectes inermis testii'', known as the unarmed crayfish, is one of two subspecies of the northern cave crayfish (''

Orconectes inermis ''Orconectes inermis'', the Northern cave crayfish, is a troglomorphic freshwater crayfish native to Kentucky and Indiana Indiana ( ) is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. It border ...

''), along with '' Orconectes inermis inermis''.

Distribution

It is

endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...

Monroe County, Indiana Monroe County is a County (United States), county in the U.S. state of Indiana. In 1910 the United States Census Bureau, US Census Bureau calculated the nation's mean center of U.S. population, mean population center to lie in Monroe County. The ...

in the United States, where it interbreeds to form intergrades with ''O. i. inermis''.

References

{{Taxonbar, from=Q12746413 Subspecies Cambaridae Cave crayfish Crustaceans described in 1891 Endemic fauna of Indiana Freshwater crustaceans of North America