Garman, S. (1913)
The Plagiostomia (Sharks, Skates and Rays).
Memoirs of the Museum of Comparative Zoology at Harvard College, 36, 1–528
Meek, S.E. & Hildebrand, S.F. (1923)
The marine fishes of Panama. Part I.
Field Museum of Natural History Zoological Series 15, (publication no. 215): 1–330.