<i>Cambarus (C.) hatfieldi</i>, a new species of crayfish (Decapoda:Cambaridae) from the Tug Fork River Basin of Kentucky, Virginia and West Virginia, USA

Zachary J. Loughman; Raquel A. Fagundo; Evan Lau; Stuart A. Welsh; Roger F. Thoma

doi:10.11646/zootaxa.3750.3.3

Cambarus (C.) hatfieldi, a new species of crayfish (Decapoda:Cambaridae) from the Tug Fork River Basin of Kentucky, Virginia and West Virginia, USA

Zootaxa

By: Zachary J. Loughman, Raquel A. Fagundo, Evan Lau, Stuart A. Welsh, and Roger F. Thoma

https://doi.org/10.11646/zootaxa.3750.3.3

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Abstract

Cambarus (Cambarus) hatfieldi is a stream-dwelling crayfish that appears to be endemic to the Tug Fork River system of West Virginia, Virginia, and Kentucky. Within this region, it is prevalent in all major tributaries in the basin as well as the Tug Fork River’s mainstem. The new species is morphologically most similar to Cambarus sciotensis and Cambarus angularis. It can be differentiated from C. sciotensis by its squamous, subtrinagular chelae compared to the elongate triangular chelae of C. sciotensis; its shorter palm length/palm depth ratio (1.9) compared to C. sciotensis (2.3); and a smaller areola length/total carapace length ratio (30.4% vs.36.5% respectively). Cambarus hatfieldican be differentiated from C. angularis by its smaller areola length/total carapace length ratio (30.4% vs. 36.7% respectively); a smaller rostrum width/rostral length ratio (59.4% vs. 67.2% respectively); its rounded abdominal pleura as compared to the subtruncated pleura of C. angularis; the length of the central projection and mesial process of C. hatfieldi which both extend to the margin of the gonopod shaft or slightly beyond the margin compared to the central projection of C. sciotensis and C. angulariswhere both extend well beyond the margin of the gonopod shaft.

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Additional publication details
Publication type	Article
Publication Subtype	Journal Article
Title	Cambarus (C.) hatfieldi, a new species of crayfish (Decapoda:Cambaridae) from the Tug Fork River Basin of Kentucky, Virginia and West Virginia, USA
Series title	Zootaxa
DOI	10.11646/zootaxa.3750.3.3
Volume	3750
Issue	3
Publication Date	December 19, 2013
Year Published	2013
Language	English
Publisher	Magnolia Press
Contributing office(s)	Coop Res Unit Leetown
Description	14 p.
First page	223
Last page	236
Country	United States
State	Kentucky, Virginia, West Virginia
Other Geospatial	Tug Fork River
Online Only (Y/N)	N
Additional Online Files (Y/N)	N