Having been investigated for over 40 years, some aspects of the biology of terrestrial gastropod’s olfactory system have been challenging and highly contentious, while others still remain unresolved. For example, a number of terrestrial gastropod species can track the odor of food, while others have no strong preferences toward food odor; rather they find it by random encounter. Here, while assessing the most recent findings and comparing them with earlier studies, the aspects of the food selection based on olfactory cues are examined critically to highlight the speculations and controversies that have arisen. We analyzed and compared the potential role of airborne odors in the feeding behavior of several terrestrial gastropod species. The available results indicate that in the foraging of most of the terrestrial gastropod species odor cues contribute substantially to food finding and selection. The results also suggest, however, that what they will actually consume largely depends on where they live and the species of gastropod that they are. Due to the voluminous literature relevant to this object, this review is not intended to be exhaustive. Instead, I selected what I consider to be the most important or critical in studies regarding the role of the olfaction in feeding of terrestrial gastropods.

中文翻译：

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陆栖腹足动物是否使用嗅觉线索来主动定位和选择食物？

经过40多年的研究，陆地腹足纲动物嗅觉系统生物学的某些方面具有挑战性和高度争议性，而另一些方面仍未解决。例如，许多陆生腹足纲物种可以追踪食物的气味，而其他种类对食物气味则没有强烈的偏好；而是他们通过随机相遇找到它。在这里，在评估最新发现并将其与早期研究进行比较时，将严格审查基于嗅觉提示的食物选择方面，以突出已出现的猜测和争议。我们分析并比较了空气中异味在几种陆生腹足纲动物的摄食行为中的潜在作用。现有的结果表明，在大多数陆生腹足纲物种的觅食中，气味提示对食物的发现和选择起了重要作用。但是，结果还表明，它们实际消耗的食物很大程度上取决于它们的居住地和腹足动物的种类。由于与该对象相关的文献众多，因此本文并不详尽。相反，我选择了我认为在嗅觉在陆生腹足纲动物摄食中的作用研究中最重要或最关键的部分。这篇评论并非详尽无遗。相反，我选择了我认为在嗅觉在陆生腹足纲动物摄食中的作用研究中最重要或最关键的部分。这篇评论并非详尽无遗。相反，我选择了我认为在嗅觉在陆生腹足纲动物摄食中的作用研究中最重要或最关键的部分。