Attributes / relations provided by
♦ 1Field observations on the feeding habits of Littorina scutulata Gould and L. sitkana Philippi (Gastropoda, Prosobranchia) of southern Vancouver Island (British Columbia, Canada), Domenico Voltolina & Cesare F. Sacchi, Hydrobiologia 193: 147-154, 1990
♦ 2Winter food habits of Barrow's Goldeneyes in southeast Alaska, Philip S. Koehl, Thomas C. Rothe, and Dirk V. Derkson, Canadian Wildlife Service, 1984
♦ 3CephBase - Cephalopod (Octopus, Squid, Cuttlefish and Nautilus) Database
♦ 4COMPETITION FOR FOOD BETWEEN TWO INTERTIDAL STARFISH SPECIES AND ITS EFFECT ON BODY SIZE AND FEEDING, BRUCE A. MENGE, Ecology, Vol. 53, No. 4 (1972) p. 635-644
♦ 5Food Web Relationships of Northern Puget Sound and the Strait of Juan de Fuca : a Synthesis of the Available Knowledge, Charles A. Simenstad, Bruce S. Miller, Carl F. Nyblade, Kathleen Thornburgh, and Lewis J. Bledsoe, EPA-600 7-29-259 September 1979
♦ 6Gibson, D. I., Bray, R. A., & Harris, E. A. (Compilers) (2005).
Host-Parasite Database of the Natural History Museum, London