Author: (Regan, 1912)
Remark: See Steindachner (1911c:432, as <i>Ancistrus stigmaticus</i>) for a description of species, Muller (1989:894, fig. 4, tab. 3) for morphological data and illustration of the lectotype, Buck and Sazima (1995, as <i>Ancistrus</i> sp.) for ecological observations and illustration of living specimen, and Montoya-Burgos et al. (1997: fig. 4; 1998: figs. 3, 5, 6) for phylogenetic relationships based on 12S and 16S mitochondrial rRNA gene sequences (EMBL/GenBank Y08279, Y08327).