chromocaudatus, Rhinotridens Datovo [A.], Ochoa [L.], Vita [G.], Presti [P.], Ohara [W. M.] & Pinna [M. C. C. de] 2023:4, Figs. 1-9 [Neotropical Ichthyology v. 21 (no. 3): e230076; ref. 40547] Rio Ipixuna, mouth of Lago Comprido, rio Purus drainage, Amazon basin, Humaitá Municipality, Amazonas State, Brazil, 07°30'37"S, 63°20'23"W. Holotype: MZUSP 128216. Paratypes: INPA, MCP, MNRJ, MPEG, UFRO. Plus additional non-type material. •Valid as Rhinotridens chromocaudatus Datovo, Ochoa, Vita, Presti, Ohara & Pinna 2023. Current status: Valid as Rhinotridens chromocaudatus Datovo, Ochoa, Vita, Presti, Ohara & Pinna 2023. Trichomycteridae: Tridentinae. Distribution: South America: Purus River drainage, Amazon basin, Brazil. Habitat: freshwater.