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Type locality: Venezuela, Yaracuy, Río Yaracuy basin (Caribbean coast), Quebrada Guaquira on Hacienda Guaquira, south-east of El Peñon Reservoir, 10°17′40″N, 68°39′35″W .
Etymology: The species name ferrarisi is in honour of Carl J. Ferraris Jr, in recognition of his many contributions to our knowledge of tropical freshwater fishes worldwide and his invaluable assistance to the authors, particularly the second author, over the years.
- de Santana, C. D. & Vari, R. P.; 2013: Brown ghost electric fishes of the Apteronotus leptorhynchus species-group (Ostariophysi, Gymnotiformes); monophyly, major clades, and revision. Zoological Journal of the Linnean Society, 168 (3): 564–596.