Hypoptopoma incognitum live colouration (83.9 mm SL; INPA 43865; UFAM:CTGA:14310).

 
  Part of: Collins R, Duarte Ribeiro E, Nogueira Machado V, Hrbek T, Farias I (2015) A preliminary inventory of the catfishes of the lower Rio Nhamundá, Brazil (Ostariophysi, Siluriformes). Biodiversity Data Journal 3: e4162. https://doi.org/10.3897/BDJ.3.e4162