Norman, J.R. (1926)
A synopsis of the rays of the family Rhinobatidae, with a revision of the genus Rhinobatus. Proceedings of the Zoological Society of London, 96(4), 941–982
DOI: 10.1111/j.1096-3642.1926.tb02228.x
Jordan, D.S. & Evermann, B.W. & Clark, H.W. (1930)
Check list of the fishes and fishlike vertebrates of North and Middle America north of the northern boundary of Venezuela and Colombia. Report of the United States Fish Commission, 1928(2), 1–670