Original description as Crenicichla haroldoi:
ZooBank:865857FF-D03A-4B42-A28B-1263E00B8018.
- Luengo, José Antonio & H. A. Britski. 1974. "Una Crenicichla nueva del río Paraná, Brasil (Osteichthyes, Cichlidae)". Acta Biológica Venezolana. v. 8 (ns. 3-4): pp. 553-565 (crc01638)
Conservation: Crenicichla haroldoi is not evaluated by the international union for the conservation of nature in the iucn red list of threatened species.