Asteronotus spongicolus is a species of sea slug or dorid nudibranch, a marine gastropod mollusk in the family Discodorididae.Bouchet, P. (2016). Asteronotus spongicolus Gosliner & Valdés, 2002. In: MolluscaBase (2015). Accessed through: World Register of Marine Species on 2016-10-24.
Distribution This species was described from Zanzibar, Tanzania with additional material from the mainland coast of Tanzania and also from Lizard Island, North Queensland, Australia.Rudman, W.B., 2003 (January 15) Asteronotus spongicolus Gosliner & Valdes, 2002. [In] Sea Slug Forum. Australian Museum, Sydney. It is also known from Malaysia and the Philippines.Gosliner T.M., Behrens D.W. & Valdés A. (2008) Indo-Pacific nudibranchs and sea slugs. Sea Challengers Natural History Books and California Academy of Sciences. 426 pp., page 174.
Ecology Asteronotus spongicolus feeds on the leafy sponge Carteriospongia sp. and is well camouflaged on the undersides of the sponge blades.
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