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''Amphibola crenata'' (''titiko'' in the Māori language or mud-flat snail in English) is a species of air breathing snail with an operculum, a pulmonate gastropod mollusc which lives in a habitat that is intermediate between the land and the sea, not entirely terrestrial and not entirely marine. 〔 Rosenberg, G. (2011). Amphibola crenata (Gmelin, 1791). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=590660 on 2012-04-06 〕 This is not a true land snail, but it is also not a true sea snail. Unlike almost all other snails that have opercula, this species breathes air. It is common in New Zealand.〔Powell A. W. B. (1979). William Collins Publishers Ltd, Auckland, New Zealand, ISBN 0-00-216906-1〕 ==Description== The thick shell of this species is about 20 mm in size. File:Amphibola crenata 2.JPG|A shell of ''Amphibola crenata'' File:Amphibola crenata (underside) 2.JPG|A shell of ''Amphibola crenata'', underside view 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「Amphibola crenata」の詳細全文を読む スポンサード リンク
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