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Turris
''Turris'' is a genus of sea snails, marine gastropod mollusks in the family Turridae, the turrids. ==Description== The generally large shells are variegated with spots. The fusiform shell is turriculated with a long, sharp spire. The aperture is ovate. The columellar lip is smooth. The outer lip is separated with a narrow profound sinus from the suture rather than distantly. The siphonal canal is long and narrow, straight and open.〔George Washington Tryon, Manual of Conchology VI, p. 160; 1884〕 The foot of the animal is anteriorly truncated but obtuse posteriorly. The tentacles are cylindrical, with the eyes externally near their base The teeth of the toxoglossan radula are falciform and angulated (formula 1-0-1).
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「Turris」の詳細全文を読む
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