Pseudancistrus pediculatus:

FMNH-58352, Holotype, 84.10 mm SL, Colombia, Villavicencio, Río Negro. FMNH-58564, 2 of 3 Paratypes, 34.46–63.12 mm SL. FMNH-58565, 2 of 4 Paratypes, 32.04–69.9 mm SL.