Desmognathus orestes Tilley and Mahoney, 1996, Herpetol. Monogr., 10: 27. Holotype: AMNH 146066, by original designation. Type locality: "a seepage area at 1329 m above sea level in the headwaters of Daves Branch, along the Elk Garden trail just north of Elk Garden on the divide between Mt. Rogers and Whitetop Mountain, Smyth Co[unty]., Virginia", USA.
Blue Ridge Dusky Salamander (Tilley and Mahoney, 1996, Herpetol. Monogr., 10: 27; Collins, 1997, Herpetol. Circ., 25: 6; Tilley, Highton, and Wake, 2012, in Crother (ed.), Herpetol. Circ., 39: 16; Collins and Taggart, 2009, Standard Common Curr. Sci. Names N. Am. Amph. Turtles Rept. Crocodil., ed. 6: 12; Tilley, Highton, and Wake, 2012, in Crother (ed.), Herpetol. Circ., 39: 26).
From Floyd County, Virginia, to between Linville Falls and McKinney Gap on the Blue Ridge Divide (Burke and McDowell counties, North Carolina) and to the headwaters of Toms and Clark Creeks ca. 1.5 im northeast of Iron Mountain Gap on the North Carolina-Tennessee boundary (Mitchell--Unicoi counties), USA.
See comment under Desmognathus carolinensis. Highton, 2000, in Bruce et al., Biol. Plethodontid Salamanders: 233, suggested that two species might be covered under this one name. Mead, Tilley, and Katz, 2001, Evolution, 55: 2287-2302, discussed molecular geographic variation in the species.
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