Umbraculum, common name the "umbrella slugs", is a genus of unusual sea snails or false limpets, marine gastropod molluscs in the family Umbraculidae.Bouchet, P.; Gofas, S. (2012). Umbraculum Schumacher, 1817. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=138620 on 2013-04-16
Species There are probably only two species in the genus Umbraculum.Rudman W. B. (1999 January 14). "Umbraculum mediterraneum (Lamarck, 1819)". Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/factsheet/umbrmedi accessed 11 January 2011. Umbraculum ovale (Carpenter, 1856) Umbraculum umbraculum (Lightfoot, 1786) - Atlantic umbrella slug.
Other synonymised taxa Umbraculum bermudense (Mörch, 1875): synonym of Umbraculum umbraculum (Lightfoot, 1786) Umbraculum botanicum (Hedley, 1923): synonym of Umbraculum umbraculum (Lightfoot, 1786) Umbraculum indicum (Lamarck, 1819): synonym of Umbraculum umbraculum (Lightfoot, 1786) Umbraculum mediterraneum (Lamarck, 1819): synonym of Umbraculum umbraculum (Lightfoot, 1786) Umbraculum ovalis (Carpenter, 1856): synonym of Umbraculum umbraculum (Lightfoot, 1786) Umbraculum plicatulum (Martens, 1881): synonym of Umbraculum umbraculum (Lightfoot, 1786) Umbraculum pulchrum (Lin, 1981): synonym of Umbraculum umbraculum (Lightfoot, 1786) Umbrella indica (Lamarck, 1819): synonym of Umbraculum umbraculum (Lightfoot, 1786) Umbrella mediterranea (Lamarck, 1819):World Register of Marine Species synonym of Umbraculum umbraculum (Lightfoot, 1786) Umbraculum rushii Dall, 1889: synonym of Plesiothyreus rushii (Dall, 1889) Umbraculum sinicum (Gmelin, 1791):Wägele H., Vonnemann V. & Rudman W. B. (2006). "Umbraculum umbraculum (Lightfoot, 1786) (Gastropoda, Opisthobranchia, Tylodinoidea) and the synonymy of U. mediterraneum (Lamarck, 1812)". Records of the Western Australian Museum Supplement 69: 69-82. synonym of Umbraculum umbraculum (Lightfoot, 1786)
References
Vaught, K.C. (1989). A classification of the living Mollusca. American Malacologists: Melbourne, FL (USA). . XII, 195 pp Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 180–213 Wägele H., Vonnemann V. & Rudman W.B. (2006) Umbraculum umbraculum (Lightfoot, 1786) (Gastropoda, Opisthobranchia, Tylodinoidea) and the synonymy of U. mediterraneum (Lamarck, 1812). Records of the Western Australian Museum Supplement 69: 69-8