marginalis, Rhinotocinclus Reis [R. E.] & Lehmann A. [P.] 2022:73, Figs. 6E, 40 [Neotropical Ichthyology v. 20 (no. 2): e220002; ref. 39390] Rio Iriri at Cachoeira Grande, circa 15 km upstream from confluence with rio Xingu, Piranhaquara, Pará, 03°50'35.5"S, 52°44'08.3"W. Holotype: MCP 54748. Paratypes: ANSP, INPA, MCP, ROM. •Valid as Rhinotocinclus marginalis Reis & Lehmann A. 2022. Current status: Valid as Rhinotocinclus marginalis Reis & Lehmann A. 2022. Loricariidae: Hypoptopomatinae. Distribution: South America: lower Xingu and Iriri River drainages, Pará, Brazil. Habitat: freshwater.