seridoensis, Parotocinclus Ramos [T. P. A.], Barros-Neto [L. F.], Britski [H. A.] & Lima [S. M. Q.] 2013:788, Figs. 1-4 [Neotropical Ichthyology v. 11 (no. 4); ref. 33028] Rio Grande do Norte State, Caicó Municipality, rio Seridó, rio Piranhas-Açu basin, 6°27’28.4'S, 37°05’10.7'W, Brazil. Holotype: MZUSP 113422. Paratypes: MCP, MNRJ, MZUSP, UFPB, UFRN. •Valid as Parotocinclus seridoensis Ramos, Barros-Neto, Britski & Lima 2013 -- (Ramos et al. 2016:[10] [ref. 34352], Ramos et al. 2017:[2] [ref. 35268], Silva-Junior et al. 2020:12 [ref. 37598], Ramos et al. 2021:2 [ref. 38561]). Current status: Valid as Parotocinclus seridoensis Ramos, Barros-Neto, Britski & Lima 2013. Loricariidae: Hypoptopomatinae. Distribution: Upper rio Piranhas-Açu basin, Rio Grande do Norte, northeastern Brazil. Habitat: freshwater.