Attributes / relations provided by
♦ ¹CephBase - Cephalopod (Octopus, Squid, Cuttlefish and Nautilus) Database
♦ ²Niche Partitioning, Distribution And Competition In North Atlantic Beaked Whales, Colin D. MacLeod, A thesis submitted to the School of Biological Sciences for a degree of Doctor of Philosophy at the University of Aberdeen, Aberdeen, UK. January 2005
♦ ³Cephalopod Remains in Regurgitations of the Wandering Albatross Diomedea exulans at South Georgia, M. R. Clarke, J. P. Croxall, P. A. Prince, British Antarctic Survey Bulletin
♦ ⁴Insights into the diet of beaked whales from the atypical mass stranding in the Canary Islands in September 2002, M.B. Santos, V. Martin, M. Arbelo, A. Fernández and G.J. Pierce, J. Mar. Biol. Ass. U.K. (2007), 87, 243–251