Twelve species of introduced land molluscs, including seven slug species, have been found in the cold zone above 2000 m altitude in the Departamentos Cundinamarca and Boyacá, and the Distrito Especial in Colombia. The introduced land molluscs remain generally restricted to disturbed environments, from which native species are often absent. Most recorded species originated from Europe. Deroceras laeve has been present in Colombia for more than a century, whereas the other species are probably more recent introductions. The records of Boettgerilla pallens, which is indigenous to the Caucasus and has spread over Europe only during the last decades, demonstrates that the process of introduction of alien molluscs is continuing.

中文翻译：

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在哥伦比亚引进陆生蜗牛和蛞蝓

已在昆迪纳马卡省和博亚卡省海拔 2000 米以上的寒冷地带以及哥伦比亚的特殊地区发现了 12 种引进的陆生软体动物，包括 7 种蛞蝓。引入的陆生软体动物通常仅限于受干扰的环境，本地物种通常不存在。大多数记录的物种起源于欧洲。Deroceras laeve 已经存在于哥伦比亚一个多世纪，而其他物种可能是最近引进的。Boettgerilla pallens 原产于高加索，仅在过去几十年才在欧洲传播，其记录表明外来软体动物的引入过程仍在继续。