G. A. Ballen, “ A new species of Chaetostoma Tschudi (Siluriformes: Loricariidae) from Colombia with a definition of the C. anale species group ”, Pap. Avulsos Zool., vol. 51, no. 26, pp. 383–398, Jan. 2011, doi: 10.1590/S0031-10492011002600001.