humboldti, Trichomycterus Costa [W. J. E. M.] & Katz [A. M.] 2021:12, Figs. 2C, 3I-J, 4C, 4I, 4M [Systematics and Biodiversity v. 19 (no. 6); ref. 38252] Small stream tributary to Córrego Paranhos, about 1.2 km from the road Mirantão-Santo Antônio, upper Rio Grande drainage, Rio Paraná basin, Município de Bocaina de Minas, Estado de Minas Gerais, Brazil, 22°12'34"S, 44°29' 18"W, elevation 1,180 meters. Holotype: UFRJ 10218. Paratypes: CICCAA, UFRJ. •Valid as Trichomycterus humboldti Costa & Katz 2021 -- (Vilardo et al. 2023:5 [ref. 40643]). Current status: Valid as Trichomycterus humboldti Costa & Katz 2021. Trichomycteridae: Trichomycterinae. Distribution: South America: upper Rio Grande drainage, Rio Paraná basin (Minas Gerais, Brazil). Habitat: freshwater.