Garman, S. (1913)
The Plagiostomia (Sharks, Skates and Rays). Memoirs of the Museum of Comparative Zoology at Harvard College, 36, 1–528

Radcliffe, L. (1916)
The sharks and rays of Beaufort, North Carolina. Bulletin of the United States Bureau of Fisheries, 34, 239–284

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