Orconectes inermis testii

Orconectes inermis testii, known as the unarmed crayfish, is one of two subspecies of the northern cave crayfish (Orconectes inermis), along with Orconectes inermis inermis.

Distribution
It is endemic to Monroe County, Indiana in the United States, where it interbreeds to form intergrades with O. i. inermis.