Attributes / relations provided by
♦ ¹Analysis of stomach contents of the porbeagle shark (Lamna nasus Bonnaterre) in the northwest Atlantic, W. N. Joyce, S. E. Campana, L. J. Natanson, N. E. Kohler, H. L. Pratt Jr, and C. F. Jensen, ICES Journal of Marine Science, 59: 1263–1269. 2002
♦ ²Food of Northwest Atlantic Fishes and Two Common Species of Squid, Ray E. Bowman, Charles E. Stillwell, William L. Michaels, and Marvin D. Grosslein, NOAA Technical Memorandum NMFS-NE-155 (2000)
♦ ³CephBase - Cephalopod (Octopus, Squid, Cuttlefish and Nautilus) Database