Sunday, January 20, 2019

[Crustacea • 2018] Cambarus loughmani • A New Species of Crayfish (Decapoda: Cambaridae) endemic to the Pre-glacial Teays River Valley in West Virginia, USA

Cambarus loughmani
Foltz, Sadecky, Fetzner & Thoma

in Foltz, Sadecky, Myers, Fetzner, Welsh, Stocker, Glon & Thoma, 2018. 

Blue Teays Mudbug  ||

A new species of crayfishCambarus loughmani sp. nov., is described from the preglacial Teays River Valley of Cabell, Kanawha, Lincoln, Mason, and Putnam counties, West Virginia. The species was previously considered to be part of the Cambarus dubius complex. Loughman et al. restricted C. dubius to an orange colour morph found in central and northern portions of the Allegheny Mountains and Appalachian Plateau in central West Virginia, western Maryland, and south-central Pennsylvania. The new species described herein can be distinguished from all other members of Cambarus Erichson, 1846 by a double row of cristiform tubercles on the palm, an open areola with two rows of punctations, and a consistent blue colouration.

KEYWORDSAppalachian Plateau, Cambarus, crayfish, new species, West Virginia

Figure 3. Dorsal view of a female specimen of Cambarus loughmani collected from the type locality, burrows adjacent to Little Island Creek, Lincoln County, West Virginia, displaying typical life colours for the species.
Photo by Guenter Schuster.

Cambarus loughmani Foltz, Sadecky, Fetzner and Thoma sp. nov.
 Cambarus dubius Faxon 1884: 114 [in part]. Faxon 1885: 70, pl. 4: fig. 3; pl. 8: figs 7, 7ʹ [in part]; Dewees 1972: 1, figs 1b–l, 2c–h, 3, 4, 5b–h, 6–16 [in part]. 
Cambarus carolinus dubius.–Faxon 1914: 396, 425 [in part]. 
Cambarus (Jugicambarus) dubius.–Hobbs and Bouchard 1973: 62 [in part]; Hobbs 1974: 18, fig. 60 [in part]; Hobbs 1989: 22, fig. 78 [in part]; Jezerinac et al. 1995: 121, fig. 61 [in part]. 
Cambarus aff. dubius. – Loughman et al. 2015: 534 [in part].

Etymology: The authors of this paper name this crayfish in honour of Dr Zachary J. Loughman, assistant professor of biology, West Liberty University. In recent years, prior to the naming of this species, Dr Loughman has served as one of the primary astacological researchers, contributing greatly to our understanding of ecology, taxonomy, conservation and distribution of Appalachian crayfish species. It is fitting that this crayfish be named in his honour, as both he and this crayfish are reclusive, hard to track down, and when faced with adversity never back down and often advance with arms flailing. The authors of this paper are composed of a mix of age classes. For the younger authors, Dr Loughman has served as a teacher, advisor and mentor. For the older authors he has served as a colleague, collaborator and student. For all of us, he has been a friend and an inspiration. Common name: The suggested common name for this species is Blue Teays Mudbug as it inhabits the Teays River Valley.

David A. Foltz II, Nicole M. Sadecky, Greg A. Myers, James W. Fetzner Jr., Stuart A. Welsh, G. Whitney Stocker, Mael G. Glon and Roger F. Thoma. 2018. 
Cambarus loughmani, A New Species of Crayfish (Decapoda: Cambaridae) endemic to the Pre-glacial Teays River Valley in West Virginia, USA. Journal of Natural History.  52(45-46);  DOI: 10.1080/00222933.2018.1557271