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The stromboid notch is an anatomical feature which is found in the shell of one taxonomic family of medium-sized to large sea snails, the conches. Marine gastropods in the family Strombidae have a notch in the edge of the shell aperture not far from the siphonal canal. This indentation is called the stromboid notch. Its function is to enable the animal to extend one of its two stalked eyes out through the notch when the animal is active.〔Kenneth R. Wye, ''The Encyclopedia of Shells,'' London, 2004, p. 70.〕 ==See also== * ''Strombus'' * siphonal notch * siphonal canal 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「Stromboid notch」の詳細全文を読む スポンサード リンク
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