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Fossarina patula : ウィキペディア英語版 | Fossarina patula
''Fossarina patula'' is a species of very small sea snail, a marine gastropod mollusc or micromollusk in the family Trochidae, the top snails.〔Marshall, B. (2013). Fossarina patula (A. Adams & Angas, 1864). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=719227 on 2014-03-02〕 ==Description== The shell grows to a length of 6 mm. The shell is widely umbilicated, with alternate larger and smaller tuberculated spiral ribs. The ribs are simple on the base. The umbilicus is acutely carinate-margined. The shell is whitish, sparsely maculated with dark brown. The three whorls are convex. The outer lip is ascending posteriorly.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Fossarina patula」の詳細全文を読む
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