pauciradiatus, Trichomycterus Alencar [A. R.] & Costa [W. J. E. M.] 2006:44, Fig. 1 [Zootaxa No. 1269; ref. 28959] Córrego Debaixo, stream tributary of córrego Aguna Limpa, rio Paraná basin, 21°26'40"S, 44°36'09"W, Municíipio de Carrancas, Estado de Minas Gerais, Brazil. Holotype: UFRJ 5831. Paratypes: MCP 38978 (6); UFRJ 5807 (22), 5807 (22), 5808 (6, c&s), 5830 (1), •Valid as Trichomycterus pauciradiatus Alencar & Costa 2006 -- (Ferraris 2007:440 [ref. 29155], Datovo et al. 2012:36 [ref. 31994], Barbosa & Azevedo-Santos 2012:360 [ref. 32318], Costa & Katz 2021:18 [ref. 38252], Vilardo et al. 2023:5 [ref. 40643]). Current status: Valid as Trichomycterus pauciradiatus Alencar & Costa 2006. Trichomycteridae: Trichomycterinae. Distribution: South America: Rio Grande drainage, Paraná River basin (southeastern Brazil). Habitat: freshwater.