megastictus, Guyanancistrus Fisch-Muller [S.], Mol [J. H. A.] & Covain [R.] 2018:46, Figs. 6c, 17 [PLoS ONE v. 13 (no. 1) e0189789; ref. 35723] Crique Alama, tributary of Crique Saranou, Maroni River basin, Massif du Mitaraka, French Guiana, 2˚18'08"N, 54˚32'00"W. Holotype: MNHN 2002-3508. Paratype: MHNG. •Valid as Guyanancistrus megastictus Fisch-Muller, Mol & Covain 2018 -- (Brosse et al. 2019:134 [ref. 38320]). Current status: Valid as Guyanancistrus megastictus Fisch-Muller, Mol & Covain 2018. Loricariidae: Hypostominae. Distribution: Northern South America: upper Maroni River basin, Massif du Mitaraka (French Guiana). Habitat: freshwater.