Squamate reptiles (around 10,000 species of snakes and lizards) comprise a myriad of distinct terrestrial vertebrates. The diversity within this biological group offers a great opportunity for customized bio-inspired solutions that address a variety of current technological problems especially within the realm of surface engineering and tribology. One subgroup within squamata is of interest in that context, namely the legless reptiles (mainly snakes and few lizards). The promise of that group lies within their functional adaptation as manifested in optimized surface designs and locomotion that is distinguished by economy of effort even when functioning within hostile tribological environments. Legless reptiles are spread over a wide range in the planet, this geographical diversity demands customized response to local habitats. Customization, in turn, is facilitated through specialized surface design features. In legless reptiles, micro elements of texture, their geometry and topological layout advance mitigation of frictional effects both in locomotion and in general function. Lately, the synergy between functional traits and intrinsic surface features has emerged as focus of research across disciplines. Many investigations have sought to characterize the structural as well as the tribological response of legless species from an engineering point of view. Despite the sizable amount of data that have accumulated in the literature over the past two decades or so, no effort to review the available information, whence this review. This manuscript, therefore, endeavors to assess available data on surface metrology and tribological behavior of legless reptiles and to define aspects of that performance necessary to formulate an advanced paradigm for bio-inspired surface engineering.

鳞状爬行动物（约10,000种蛇和蜥蜴）包括无数不同的陆生脊椎动物。这个生物集团的多样性为定制的生物灵感解决方案提供了巨大的机会，这些解决方案可以解决各种当前的技术问题，尤其是在表面工程和摩擦学领域。在这种情况下，鳞癌中的一个亚组是感兴趣的，即无腿爬行动物（主要是蛇和少数蜥蜴）。该小组的希望在于他们的功能适应性，这表现在优化的表面设计和运动表现出来的，即使在不利的摩擦环境中发挥作用，也可以通过省力来实现。无脚爬行动物分布在地球上的各个角落，这种地理多样性要求对当地栖息地做出定制化反应。定制，反过来，通过专门的表面设计功能也可以实现此目的。在无腿爬行动物中，质地的微元素，其几何形状和拓扑布局可减轻运动和一般功能方面的摩擦作用。最近，功能性特征和内在表面特征之间的协同作用已经成为跨学科研究的重点。从工程学的角度来看，许多研究试图表征无腿物种的结构和摩擦学响应。尽管在过去的二十年左右的时间里，文献中积累了可观的数据量，但本次审查并没有努力回顾现有的信息。因此，这份手稿