One important autapomorphy of the Mollusca is the radula, a key evolutionary innovation that aids in the collection and mechanical processing of food. This structure with its diverse morphologies has allowed the Gastropoda, in particular, to colonize diverse ecosystems and occupy different ecological niches.

中文翻译：

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选定的taenioglossan腹足纲中的牙齿形态促进了胚根的包装和贮藏

软体动物的一个重要的自变种是radula，它是一种重要的进化创新，有助于食品的收集和机械加工。这种具有多样形态的结构尤其使腹足纲动物能够定殖在不同的生态系统中并占据不同的生态位。