Harttia dissidens
Harttia dissidens is a species of freshwater ray-finned fish belonging to the family Loricariidae, the mailed catfishes, and the subfamily Loricariinae, the armored suckermouth catfishes. This catfish is endemic to Brazil where it is found in the Tapajós River basin in the state of Pará. This species attains a maximum standard length of.