Bigelow, H.B. & Schroeder, W.C. (1948)
Fishes of the western North Atlantic, Part I: Lancelets, Cyclostomes, Sharks.
In J. Tee–Van, C.M. Breder, S.F. Hildebrand, A.E. Parr, and W.C. Schroeder (Eds.), Fishes of the Western North Atlantic. Part 1. Sears Foundation for Marine Research, Yale University, New Haven (pp. 59–576)