crassilabrum, Phenacobius Minckley [W. L.] & Craddock [J. E.] 1962:369, Figs. 1a, 3a [Copeia 1962 (no. 2); ref. 6261] Elk River (tributary to Watauga River), Carter County, Tennessee, U.S.A., 36°18'N, 81°57'53"W. Holotype: UMMZ 179151. Paratypes: UMMZ 157418 (23), 157434 (29, 1 c&s). Additional material: UMMZ (10 lots). Type catalog: Gilbert 1998:68 [ref. 23395]. •Valid as Phenacobius crassilabrum Minckley & Craddock 1962 -- (Lee et al. 1980:331 [ref. 22416], Burkhead & Jenkins 1991:359 [ref. 21804], Page & Burr 1991:97 [ref. 18983], Etnier & Starnes 1993:240 [ref. 22809], Jenkins et al. in Jenkins & Burkhead 1994:342 [ref. 21581], Gilbert 1998:68 [ref. 23395], Nelson et al. 2004:76 [ref. 27807], Scharpf 2005:34 [ref. 28940], Page & Burr 2011:202 [ref. 31215], Page et al. 2013:76 [ref. 32708], Page et al. 2023:74 [ref. 40505]). Current status: Valid as Phenacobius crassilabrum Minckley & Craddock 1962. Leuciscidae: Pogonichthyinae. Distribution: Eastern North America: eastern U.S.A. Habitat: freshwater.