BACKGROUND Currently, seven dasyatid species have been described in the Mediterranean Sea: Bathytoshia lata, Dasyatis marmorata, Dasyatis pastinaca, Dasyatis tortonesei, Himantura uarnak, Pteroplatytrygon violacea and Taeniura grabata. Papaconstantinou (2014) listed four species of Dasyatidae occurring in Greece (P. violacea, D. pastinaca, D. tortonesei and D. centroura; the latter was a case of misidentification and it is currently identified as B. lata, according to genetic analysis). However, the marbled stingray (D. marmorata) was not amongst them. Here, the presence of D. marmorata was examined for the first time in Greece. NEW INFORMATION The present study provides updated information on the geographical distribution of D. marmorata in the Eastern Mediterranean Sea. A juvenile male stingray was captured in February 2019, during an onshore survey in Maliakos Gulf, located in the central Aegean Sea, Greece. The ray was examined at the Fisheries laboratory of the Hellenic Centre for Marine Research (HCMR) in Athens and was identified as D. marmorata. Morphological characters were recorded and DNA barcoding was applied to confirm the species identification. The combination of the two methods verified the occurrence of the marbled ray in the Greek waters. This is the first record of D. marmorata from the Aegean Sea.

中文翻译：

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来自希腊（爱琴海中部）的大理石鳐的首次记录，Dasyatis marmorata (Elasmobranchii: Dasyatidae)。

背景技术目前，已在地中海描述了七种dasyatid物种：Bathytoshia lata、Dasyatis marmorata、Dasyatis Pastinaca、Dasyatis tortonesei、Himantura uarnak、Pteroplatytrygon violacea和Taeniura grabata。Papaconstantinou (2014) 列出了在希腊发生的四种达夏科（P. violacea、D. Pastinaca、D. tortonesei 和 D. centroura；后者是一个误认案例，根据遗传分析，目前被鉴定为 B. lata ）。然而，大理石黄貂鱼（D. marmorata）不在其中。在这里，首次在希腊检查了 D. marmorata 的存在。新信息 本研究提供了有关 D. marmorata 在东地中海的地理分布的最新信息。2019 年 2 月捕获了一只幼年雄性黄貂鱼，在位于希腊爱琴海中部的马利亚科斯湾的陆上勘测期间。这条射线在雅典的希腊海洋研究中心 (HCMR) 的渔业实验室进行了检查，并被确定为 D. marmorata。记录形态特征并应用DNA条形码确认物种鉴定。两种方法的结合验证了大理石射线在希腊水域中的出现。这是来自爱琴海的 D. marmorata 的第一个记录。两种方法的结合验证了大理石射线在希腊水域中的出现。这是来自爱琴海的 D. marmorata 的第一个记录。两种方法的结合验证了大理石射线在希腊水域中的出现。这是来自爱琴海的 D. marmorata 的第一个记录。