Clark, E. & Kristof, E. (1990)
Deep-sea elasmobranchs observed from submersibles off Bermuda, Grand Caymen, and Freeport, Bahamas. In Pratt, H.L., Gruber, S.H., Taniuchi, T., editors. Elasmobranchs as living resources: advances in the biology, ecology, systematics, and the status of the fisheries: NOAA Technical Report NMFS, 90: 269–284