Fissurella obscura is a species of sea snail, a marine gastropod mollusk in the family Fissurellidae, the keyhole limpets and slit limpets.WoRMS (2012). Fissurella obscura G.B. Sowerby, 1835. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=575123 on 2012-12-31Keen M. (1971) Sea shells of tropical West America. Marine mollusks from Baja California to Perú, ed. 2. Stanford University Press. 1064 pp.
References
External links Biodiversity Heritage Library (11 publications) World Register of Marine Species