hualco, Trichomycterus Fernández [L.] & Vari [R. P.] 2009:195, Fig. 1 [Copeia 2009 (no. 1); ref. 30062] Río Hualco, 28°35'S, 67°11'W, Departamento San Blas de los Sauces, Provincia de La Rioja, Argentina, elevation 2000 meters. Holotype: FML 2601. Paratypes: FML 2602 (20), MCMI [MCNI] 1467 (1), USNM 383794 (4, 1 c&s). •Valid as Trichomycterus hualco Fernández & Vari 2009 -- (Koerber 2011:4 [ref. 31122], Koerber 2014:8 [ref. 33621], Mirande & Koerber 2015:38 [ref. 35117], García-Melo et al. 2016:237 [ref. 34471]). Current status: Valid as Trichomycterus hualco Fernández & Vari 2009. Trichomycteridae: Trichomycterinae. Distribution: La Rioja Province, Argentina. Habitat: freshwater.