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Waikura
''Waikura'' is a genus of very small sea snails, pyramidellid gastropod mollusks, or micromollusks. This genus is currently placed in the subfamily Chrysallidinae of the family Odostomiidae. ==Shell description== The original description by Marwick (1931) says that the genus consists of small shells that are subconical with a telexopic spire. The protoconch is heterostrophic and immersed. The sculpture consists of tubercles on the shouldes that extends axially for a short distance. There are no spiral sculpture except on the subsutural border. The surface is smooth and polished. The Aperture is subrhombic with a highly sinuous outer lip that is convex below. Columella has a week tooth at the top.
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「Waikura」の詳細全文を読む
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