Aquino, A. E., & Pérez, M. H. S. (2016). Oxyropsis ephippia, a New Hypoptopomatine Catfish (Siluriformes: Loricariidae) from Guyana. Zootaxa, 4136(1), 129–140. https://doi.org/10.11646/zootaxa.4136.1.5