Plethodon dixi Pope & Fowler 1949

English name: Roanoke salamander, Conant et al. 1956

Plethodon wehrlei dixi, Bogert 1954, Conant 1958

Plethodon wehrlei (part), Highton 1962

Plethodon dixi, Kuchta et al. 2018

Holotype: Chicago Natural History Museum (CNHM) 56510

Type locality: Dixie Caverns, Roanoke County, Virginia

Remarks: This species was described as a cave-dwelling form within the P. wehrlei group (Pope & Fowler 1949). It is sister to all other members of the group. Originally synonymized with P. wehrlei by Highton (1962), Kuchta et al. (2018) resurrected it as a species based on its genetic and phenotypic distinctiveness. Its known range is two caves in Roanoke County in the Ridge and Valley physiographic province of Virginia (Pope and Fowler 1949, Fowler 1951), and its conservation status is unknown.