largoperculatus, Trichomycterus Costa [W. J. E. M.] & Katz [A. M.] 2022:14, Figs. 1-4 [Zoosystematics and Evolution v. 98 (no. 1); ref. 38971] Rio Paraíba do Sul just below Ilha dos Pombos Dam, Município de Além Paraíba, Rio de Janeiro State, Brazil, 21°50'36"S, 42°34'46"W, elevation about 105 meters. Holotype: UFRJ 6987. Paratypes: (12) CICCAA, UFRJ. •Valid as Trichomycterus largoperculatus Costa & Katz 2022 -- (Costa et al. 2022:512 [ref. 39820] in subgenus Psammocambeva, Sarmento-Soares et al. 2024:558 [ref. 42662]). Current status: Valid as Trichomycterus largoperculatus Costa & Katz 2022. Trichomycteridae: Trichomycterinae. Distribution: South America: middle Rio Paraíba do Sul drainage, Rio de Janeiro State (southeastern Brazil). IUCN (2025): Not Assessed. Habitat: freshwater.