Dendronotus dalli is a species of sea slug, a dendronotid nudibranch, a shell-less marine gastropod mollusc in the family Dendronotidae.Bouchet, P. (2015). Dendronotus dalli. In: MolluscaBase (2015). Accessed through: World Register of Marine Species on 2016-01-28.
Distribution This species was described from the Bering Sea. It can be found along the west coast of North America from the Bering Sea, Alaska to Puget Sound, Washington.Rudman, W.B., 2000 (October 25) Dendronotus dalli Bergh 1879. [In] Sea Slug Forum. Australian Museum, Sydney.Behrens, D. W., & Hermosillo, A. (2005) Eastern Pacific nudibranchs, a guide to the opisthobranchs from Alaska to Central America. vi + 137 pp., 314 photos. Sea Challengers, Monterey, California, page 93. Similar looking animals from the White Sea and Barents Sea, North Atlantic have been demonstrated to be a distinct species, Dendronotus niveus.Ekimova, I.; Korshunova, T.; Schepetov, D.; Neretina, T.; Sanamyan, N.; Martynov, A. (2015). Integrative systematics of northern and Arctic nudibranchs of the genus Dendronotus (Mollusca, Gastropoda), with descriptions of three new species. Zoological Journal of the Linnean Society. 173(4): 841-886.
Diet Dendronotus dalli feeds on the hydroids Abietinaria rigida and Abietinaria amphora, family Sertulariidae.Robilliard, G.A. (1970). The systematics and some aspects of the ecology of the genus Dendronotus. The Veliger, 12: 433–479, page 452..
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