ruficaudatus, Trichomycterus Costa [W. J. E. M.], Mattos [J. L. O.], Amorim [P. F.], Gago [I. C. V.] & Katz [A. M.] 2025:177, Figs. 1-3 [Zootaxa 5689 (no. 1); ref. 42356] Rio Mocotó, a tributary of Rio Imbé, Sistema Lagoa Feia, Município de Campos dos Goytacazes, Rio de Janeiro State, Brazil, 21˚50'26"S, 41˚44'22"W, elevation about 20 meters. Holotype: UFRJ 14437. Paratypes: CICCAA, UFRJ. •Valid as Trichomycterus ruficaudatus Costa, Mattos, Amorim, Gago & Katz 2025. Current status: Valid as Trichomycterus ruficaudatus Costa, Mattos, Amorim, Gago & Katz 2025. Trichomycteridae: Trichomycterinae. Distribution: South America: Mocotó River drainage, Imbé River basin, Lagoa Feia system, Rio de Janeiro State, Brazil. Habitat: freshwater.