TOWNSEND, C.H. & NICHOLS, J.T. (1925)
Deep sea fishes of the 'Albatross' Lower California expedition. Bulletin of the American Museum of Natural History, 52 (1): 1–20, Pls. 1–4, map
BEEBE, W. & TEE-VAN, J. (1941)
Eastern Pacific expeditions of the New York Zoological Society. XXVIII. Fishes from the tropical eastern Pacific. [From Cedros Island, Lower California, south to the Galápagos Islands and northern Peru.] Part 3. Rays, Mantas and Chimaeras. Zoologica, Scientific Contributions of the New York Zoological Society, 26 (3): 245–280, Pls. 1–4.