The Acestrocephalus pallidus lives in the benthopelagic, freshwater environment.
Acestrocephalus pallidus was discovered in 1975 in the Rio Madeira, ilha do Puruzinho, by Expedi��o Permanente da Amaz�nia. Most of the type specimens are small fish, at around 4-6cm. The authors said: "Acestrocephalus pallidus is distinguished from A. boehlkei, A. More
Acestrocephalus pallidus is distinguished from A. boehlkei, A. maculosus and A. stigmatus by lacking the dark humeral blotch characteristic of these species. Acestrocephalus pallidus has the eye smaller than A. sardina and A. nigrifasciatus (Fig. More