Pogonopoma parahybae is a species of freshwater ray-finned fish belonging to the family Loricariidae, the armored catfishes, and the subfamily Rhinelepinae, the rhinelepine plecos. This catfish is endemic to Brazil, where it is found in the ParaÃÂba do Sul river basin, where it occurs in areas of medium to strong water current usually associated with rocky substrate. This species grows to a standard length of .