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Liotella corona : ウィキペディア英語版 | Liotella corona
''Liotella corona'' is a species of minute sea snail, a marine gastropod mollusc in the family Skeneidae.〔Marshall, B. (2013). Liotella corona (Hedley, 1902). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=720331 on 2013-10-25〕 ==Description== The height of the white shell attains 0.28 mm, its diameter 0.82 mm. The minute shell has a discoid shape. It is not nacreous. The spire is sunken. The umbilicus is wide and shallow. The shell consists of three whorls. The last half-whorl comes scarcely in contact with the others, and is suddenly and deeply deflected. Sculpture: The body whorl is ringed by 16 thick, projecting, distant ribs which fade above and below at the sutures. These ribs continue on the suture for about half a whorl. The interstices of the ribs are faintly spirally scratched. The very oblique aperture is circular and fortified by a varix.〔(Hedley Charles (1902) Studies on Australian Mollusca. Part VI; Proceedings of the Linnean Society of New South Wales vol. 27 (1902) )〕
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