翻訳と辞書 |
Lithopoma
''Lithopoma'' is a genus of medium-sized to large sea snails with a calcareous operculum, marine gastropod mollusks in the family Turbinidae, the turban snails.〔Bouchet, P.; Rosenberg, G. (2011). Lithopoma Gray, 1850. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=240760 on 2011-11-09〕 ==Description== The elevated, imperforate shell has a turbinate or trochiform shape. with a plicate spire that is flat or concave below. Its periphery is carinated or rounded. The base of the shell is somewhat convex. The whorls above are radiately plicate. The operculum is oval, outside coarsely granulose, and either simply convex or with a curved spiral rib with its terminations connected by a straight one. The nucleus is submarginal. 〔 (G.W. Tryon (1888), Manual of Conchology X; Academy of Natural Sciences, Philadelphia ) 〕
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「Lithopoma」の詳細全文を読む
スポンサード リンク
翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|