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Published: 2016-12-15

A new species of crayfish in the genus Orconectes (Decapoda: Cambaridae) from the Tennessee River Drainage with comments on and key to members of the O. juvenilis Species Complex

Illinois Natural History Survey, Prairie Research Institute, 607 E. Peabody Drive Champaign, IL 61820
Illinois Natural History Survey, Prairie Research Institute, 607 E. Peabody Drive Champaign, IL 61820
224 Primrose Circle Richmond, KY 40475
Crustacea Tennessee River drainage crayfish species complex Orconectes


The crayfish subgenus Procericambarus (genus Orconectes) found in the Eastern Highlands of the United States represents a rich assemblage of stream-dwelling macroinvertebrates. While the taxonomic status and distribution of its members were clarified in a previous study, newly diagnosed characters and newly collected specimens warranted a revision to previous hypotheses of Procericambarus membership in the southeastern United States. Using morphological characters, we describe herein a new species of crayfish occurring in the Tennessee River drainage of northern Alabama and southwestern Tennessee. We also provide a revised key for the identification of members of O. juvenilis Species Complex.



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