Cambarus (Tubericambarus) polychromatus (Decapoda: Cambaridae), a new species of crayfish from the United States

Abstract

A new species of crayfish, Cambarus (Tubericambarus) polychromatus is described from the western Ohio, Indiana, southern and east-central Illinois, western and central Kentucky, southern Michigan, and western Tennessee areas of North America. Of the recognized members of the subgenus, it is most closely related to Cambarus (T.) thomai, found primarily in eastern Ohio, Kentucky, and Tennessee and western West Virginia. It is easily distinguished from other recognized members of the subgenus by its strongly deflected rostrum and lack of spines overhanging the telson.