The Strait of Sicily in the middle of the Mediterranean Sea is considered a crossroads between the western and the eastern basins for species immigrating from the Atlantic Ocean and Lessepsian species. Among the latter, the African sailfin flyingfish Parexocoetus mento was recently collected from Lampedusa Island in November 2017, and represents the first documented record in Italian waters. In this paper, the morphological and meristic characteristics of this specimen are reported and discussed, compared with the other species of the genus Parexocoetus. Furthermore, as mapping and monitoring the distribution of invasive species is crucial to understanding their establishment and spread and then to manage the invasion process, the occurrences distribution of P. mento in the Mediterranean Sea was studied. The application of GIS-based spatial statistics allowed to identify significant clustering areas and dispersion areas of the species, summarizing the key characteristics, and underlining directional trends of distribution. GIS analysis identified two similar groups of records (1935/1966 and 1986/2017 time period), showing a change of distribution spatial pattern over time. An earlier spread direction in the Mediterranean east coast and a settled area of P. mento were found. The analysis also includes the specimen caught in Italian waters.

中文翻译：

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意大利水域 Lesepsian 鱼 Parexocoetus Mento 的首次记录和基于 GIS 的地中海时空分布

位于地中海中部的西西里海峡被认为是从大西洋移民的物种和莱塞普西亚物种的西部和东部盆地之间的十字路口。其中，非洲旗鳍飞鱼曼陀螺最近于 2017 年 11 月从兰佩杜萨岛采集，代表了意大利水域的第一个记录。本文报道并讨论了该标本的形态和分生特征，并与该属的其他物种进行了比较。长尾鱼. 此外，由于绘制和监测入侵物种的分布对于了解它们的建立和传播以及管理入侵过程至关重要，因此入侵物种的发生分布薄荷脑在地中海进行了研究。应用基于 GIS 的空间统计可以识别物种的重要聚集区域和分散区域，总结关键特征，并强调分布的方向趋势。GIS 分析确定了两组相似的记录（1935/1966 和 1986/2017 时间段），显示出分布空间格局随时间的变化。较早的地中海东海岸的传播方向和一个定居区薄荷脑被发现。分析还包括在意大利水域捕获的标本。