Larvae: stage in an animal’s lifecycle after it hatches from the egg. Larvae are typically very different in appearance to adults; they are able to feed and move around but usually are unable to reproduce.
Molluscs: a diverse group of invertebrates, mainly marine, that have one or all of the following; a horny, toothed ribbon in the mouth (the radula), a shell covering the upper surface of the body, and a mantle or mantle cavity with a type of gill. Includes snails, slugs, shellfish, octopuses and squid.
Fredrickson, L.H. (2001) Steller's Eider (Polysticta stelleri). In: Poole, A. (Ed) The Birds of North America Online.Cornell Lab of Ornithology, Ithaca. Available at: http://bna.birds.cornell.edu/bna/species/571
Quakenbush, L., Suydam, R., Obritschkewitsch, T. and Deering, M. (2004) Breeding Biology of Steller’s Eiders (Polysticta stelleri) near Barrow, Alaska, 1991–99. Arctic, 57 (2): 166 - 182.