Mexichromis pusilla is a species of sea slug or dorid nudibranch, a marine gastropod mollusk in the family Chromodorididae.Bouchet, P. (2012). Mexichromis pusilla. Accessed through: World Register of Marine Species at on 2012-05-28Johnson R.F. & Gosliner T.M. (2012) Traditional taxonomic groupings mask evolutionary history: A molecular phylogeny and new classification of the chromodorid nudibranchs. PLoS ONE 7(4): e33479.
Distribution This nudibranch is found in the tropical Indo-Pacific Ocean.Rudman, W.B., 1999 (November 6) Durvilledoris pusilla (Bergh, 1874). [In] Sea Slug Forum. Australian Museum, Sydney.
Description Mexichromis pusilla has a pink-orange body, gills and rhinophores. The mantle is edged with a broad pale yellow band, and there are two white spots on its dorsum. This species is easily confused with other similarly coloured nudibranchs, especially Verconia varians and Verconia norba.Rudman, W. B. (1986) The Chromodorididae (Opisthobranchia: Mollusca) of the Indo-West Pacific: Noumea purpurea and Chromodoris decora colour groups. Zoological Journal of the Linnean Society 86(4): 309-353Rudman W.B. (1990) The Chromodorididae (Opisthobranchia: Mollusca) of the Indo-West Pacific: further species of Glossodoris, Thorunna and the Chromodoris aureomarginata colour group. Zoological Journal of the Linnean Society 100: 263-326 page(s): 287Gosliner, T.M., Behrens, D.W. & Valdés, Á. (2008) Indo-Pacific Nudibranchs and seaslugs. A field guide to the world's most diverse fauna. Sea Challengers Natural History Books, Washington, 426 pp. page(s): 256
This species can reach a total length of at least 20 mm, and like all Chromodorids, feeds on sponges.
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