1. Bean TH (1881) Descriptions of new fishes from Alaska and Siberia. Proc U S Natl Mus 4(210):144–159
2. 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. Zool Sci Contrib NY Zool Soc 26:245–280
3. Bigelow HB, Schroeder WC (1953) Fishes of the Western North Atlantic. Part two. Sawfishes, guitarfishes, skates and rays, Chimaeroids. Mem Sears Found Mar Res 1(2):1–588
4. Bigelow HB, Schroeder WC (1965) Notes on a small collection of rajids from the sub-Antarctic region. Limnol Oceanogr 10(Suppl):R38–R49
5. Clark RS (1926) Rays and skates, a revision of the European species. Fish Bd Scotland Sci Inv 1:1–66