Asteronotus mimeticus is a species of sea slug or dorid nudibranch, a marine gastropod mollusk in the family Discodorididae.Bouchet, P. (2016). Asteronotus mimeticus Gosliner & Valdés, 2002. In: MolluscaBase (2015). Accessed through: World Register of Marine Species on 2016-10-24
Distribution The holotype of this species was described from Luzon Island, Philippines. Additional specimens included in the original description were from elsewhere in the Philippines, Palau, Papua New Guinea, Australia and Bali, Indonesia.Rudman, W.B., 2003 (January 15) Asteronotus mimeticus Gosliner & Valdes, 2002. [In] Sea Slug Forum. Australian Museum, Sydney. It is also known from Malaysia.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 173.
Ecology Asteronotus mimeticus is found on the underside of blades of the leafy sponge Phyllospongia lamellosa and other sponges with flattened blades.
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