Monotypic no more, a description of a new crayfish of the genus Barbicambarus Hobbs, 1969 (Decapoda Cambaridae) from the Tennessee River drainage using morphology and molecules

Recent fieldwork in the Shoal Creek drainage of the Tennessee River drainage in Tennessee has uncovered the presence of a new species of crayfish in the formerly monotypic genus Barbicambarus The new species differs from the type species in possessing a median carina, less dense setae on the antennae, a less angular central projection, a spine at the dorsodistal margin of the merus of the cheliped, and a high level of divergence in the COI gene region Collecting efforts have so far found the new taxon at only two locations and it is thought to be rare