Plethodon dunni Bishop, 1934, Proc. Biol. Soc. Washington, 47: 169. Holotype: USNM 95196, by original designation. Type locality: "Just outside the city limits of Portland, Oregon in Clackamas County", USA.
Plethodon gordoni Brodie, 1970, Herpetologica, 26: 497. Holotype: USNM 166687, by original designation. Type locality: "Dinner Creek (T13S, R7W, Sec. 1, NW quarter), Benton County, Oregon", USA. Synonymy by Feder, Wurst, and Wake, 1978, Herpetologica, 34: 69.
Plethodon (Hightonia) dunni — Vieites, Román, Wake, and Wake, 2011, Mol. Phylogenet. Evol., 59: 632.
Dunn Salamander (Stebbins, 1951, Amph. W. North Am.: 68).
Western Tan-backed Salamander (Bishop, 1943, Handb. Salamanders: 242).
Dunn's Salamander (Bishop, 1943, Handb. Salamanders: 242; Schmidt, 1953, Check List N. Am. Amph. Rept., Ed. 6: 38; Conant, Cagle, Goin, Lowe, Neill, Netting, Schmidt, Shaw, Stebbins, and Bogert, 1956, Copeia, 1956: 175; Stebbins, 1966, Field Guide W. North Am. Rept. Amph.: 40; Collins, Huheey, Knight, and Smith, 1978, Herpetol. Circ., 7: 8; Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 32; Collins, 1997, Herpetol. Circ., 25: 8; Crother, Boundy, Campbell, de Queiroz, Frost, Highton, Iverson, Meylan, Reeder, Seidel, Sites, Taggart, Tilley, and Wake, 2001 "2000", Herpetol. Circ., 29: 26; Stebbins, 2003, Field Guide W. Rept. Amph., Ed. 3: 169; Tilley, Highton, and Wake, 2008, in Crother (ed.), Herpetol. Circ., 37: 20; Collins and Taggart, 2009, Standard Common Curr. Sci. Names N. Am. Amph. Turtles Rept. Crocodil., ed. 6: 14; Tilley, Highton, and Wake, 2012, in Crother (ed.), Herpetol. Circ., 39: 29).
Mary's Peak Salamander (Plethodon gordoni [no longer recognized]: Nussbaum, Brodie, and Storm, 1983, Amph. Rept. Pacific Northwest: 93).
From southwestern Washington south through western Oregon to northern Del Norte County, California, USA.
In the Plethodon vehiculum group of Highton and Larson, 1979, Syst. Zool., 28: 579-599. Reviewed by Storm and Brodie, 1970, Cat. Am. Amph. Rept., 82: 1-2. See Nussbaum, Brodie, and Storm, 1983, Amph. Rept. Pacific Northwest: 93-94, for discussion of the status of Plethodon gordoni. Stebbins, 2003, Field Guide W. Rept. Amph., Ed. 3: 169-170, provided a brief account, figure, and map.
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