Description
The species are moderate-sized. The orbicular shell is turbinately depressed. The Whorl (mollusc), whorls are convex, smooth or transversely striated, the last one rounded at the periphery. They have a mottled or streaked color-pattern. The Umbilicus (mollusc), umbilicus is partly closed by a callus deposit. The Columella (gastropod), columellar Lip (gastropod), lip ends anteriorly in an obtuse dilated callus. The callus emitted at the columellar-parietal angle of the aperture is tongue-shaped, closing the umbilicus except a rather narrow chink, or even entirely, in some species.Distribution
This marine genus occurs in the Central and East Indian Ocean, off East Africa, off Indo-Malaysia, and off Australia.Species
Species within the genus ''Ethalia'' include: * ''Ethalia bellardii'' (Issel, 1869) * ''Ethalia bysma'' Herbert, 1992 * ''Ethalia carneolata'' Melvill, 1897 * ''Ethalia catharinae'' Poppe, Tagaro & Dekker, 2006 * ''Ethalia electra'' Herbert, 1992 * ''Ethalia gilchristae'' Herbert, 1992 * ''Ethalia guamensis'' (Quoy & Gaimard, 1834) * ''Ethalia minolina'' Melvill, 1897 * ''Ethalia nitida'' A. Adams, 1863 * ''Ethalia omphalotropis'' A. Adams, 1863 * ''Ethalia polita'' A. Adams, 1862 * ''Ethalia rufula'' Gould, 1861 * ''Ethalia sanguinea'' Pilsbry, 1905 * ''Ethalia striolata'' (A. Adams, 1855) ;Species brought into synonymy: * ''Ethalia (Ethaliella)'' Pilsbry, 1905: synonym of ''Ethaliella'' Pilsbry, 1905 * ''Ethalia candida'' A. Adams, 1862: synonym of ''Leucorhynchia candida'' (A. Adams, 1862) * ''Ethalia capillata'' Gould, 1862: synonym of ''Ethaliella capillata'' (Gould, 1862) * ''Ethalia floccata'' G. B. Sowerby III, 1903: synonym of ''Ethaliella floccata'' (Sowerby, 1903) * ''Ethalia lirata'' E.A. Smith, 1871: synonym of ''Leucorhynchia lirata'' (E.A. Smith, 1871) * ''Ethalia multistriata'' A. E. Verrill, 1884: synonym of ''Solariorbis multistriatus'' (A. E. Verrill, 1884) * ''Ethalia perspicua'' A. Adams, 1861: synonym of ''Teinostoma perspicuum'' (A. Adams, 1861) * ''Ethalia philippii'' (A. Adams, 1855): synonym of ''Monilea philippii'' A. Adams, 1855 * ''Ethalia plicata'' E. A. Smith, 1872: synonym of ''Leucorhynchia plicata'' (E. A. Smith, 1872) * ''Ethalia pulchella'' (A. Adams, 1855): synonym of ''Ethaliella pulchella'' (A. Adams, 1855) * ''Ethalia sobrina'' A. Adams, 1861: synonym of ''Lissotesta sobrina'' (A. Adams, 1861) * ''Ethalia striolata'' Kilburn, 1977: synonym of ''Ethalia carneolata'' Melvill, 1897References
* Wilson, B., 1993. ''Australian Marine Shells. Prosobranch Gastropods''. Odyssey Publishing, Kallaroo, WA * Higo, S., Callomon, P. & Goto, Y. (1999) Catalogue and Bibliography of the Marine Shell-Bearing Mollusca of Japan. Elle Scientific Publications, Yao, Japan, 749 pp. * Williams S.T., Karube S. & Ozawa T. (2008) ''Molecular systematics of Vetigastropoda: Trochidae, Turbinidae and Trochoidea redefined.'' Zoologica Scripta 37: 483–506.External links