Macrobrachium carcinus is reported for the first time from the Cayman Islands. Specimens were collected on multiple occasions from an unusual habitat for this species – an anchialine cave. It is likely the cave was colonized by M. carcinus larvae via movement through subterranean karst tunnels from the sea inland to the cave entrance. Because only juveniles were collected, it is uncertain whether reproduction is occurring in this cave. However, it is possible M. carcinus may continue to colonize this and other similar caves, and sustained populations may eventually become established on Grand Cayman.

中文翻译：

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从大开曼岛上的An鱼洞发现的淡水Caridean虾Macrobrachium carcinus种群的首次报告

开曼群岛首次报告了大臂car。曾多次从该物种的不寻常栖息地-chi鱼洞中收集标本。这个洞穴很可能是由M. carcinus幼虫通过从海内陆到洞穴入口的地下岩溶隧道移动而定居的。由于仅收集了幼鱼，因此无法确定该洞穴是否正在繁殖。但是，卡氏支原体可能会继续在这个和其他类似的洞穴中殖民，最终在大开曼岛上可能会形成持续的种群。