de Souza, L.S., Taphorn, D.C. and Armbruster, J.W. 2019. Review of Ancistrus (Siluriformes: Loricariidae) from the northwestern Guiana Shield, Orinoco Andes, and adjacent basins with description of six new species. Zootaxa. 4552, 1 (Feb. 2019), 1–67. DOI:https://doi.org/10.11646/zootaxa.4552.1.1.