displicatus, Trachelyichthys Calegari [B. B.], Akama [A.], Ferraris Jr. [C.] & Reis [R. E.] 2026:29, Figs. 12-13 [Neotropical Ichthyology v. 24 (no. 2): 250200; ref. 43281] Igarapé Juá, 7 km west of Santarém, Santarém, Pará Sate, Brazil, 02°26'00"S, 54°46'52"W. Holotype: INPA 61812. Paratypes: ANSP, INPA, MCP, MZUSP, NMBE. •Valid as Trachelyichthys displicatus Calegari, Akama, Ferraris & Reis 2026. Current status: Valid as Trachelyichthys displicatus Calegari, Akama, Ferraris & Reis 2026. Auchenipteridae: Auchenipterinae. Distribution: South America: lower Xingu, Tapajós, Negro and Tefé River drainages, near their confluences with the Amazon River, Brazil. Habitat: freshwater.