The present study reports the occurrence of several specimens of the African caridean shrimp Lysmata uncicornis Holthuis & Maurin, 1952 in the NE Atlantic coast (Gulf of Cadiz, Spain and the Algarve, Portugal). Lysmata uncicornis is a poorly studied species that has been originally described from the Atlantic waters of Morocco, where it was first collected inside the port of Casablanca in a rocky bottom at 4–5-m depth. While no scientific publication has previously reported this species outside the waters of Morocco, several specimens have been collected in the coastal waters of the Gulf of Cadiz and the Algarve. This species may be able to expand successfully northward along European waters, probably favoured by global warming. It is possible that this expansion may also be enhanced through the marine aquarium trade. Recently, Lysmata arvoredensis Giraldes, Macedo, Brandão, Baeza & Freire, 2018 a new species of shrimp from the south coast of Brazil was described. However, morphological and genetic comparisons revealed no differences between L. uncicornis and L. arvoredensis. Therefore, L. arvoredensis should be considered as a junior synonym of L. uncicornis. While L. uncicornis may well be an amphi-Atlantic species, such as L. grabhami (Gordon, 1935), for now, the introduction of L. uncicornis in Brazilian waters cannot be ruled out.

中文翻译：

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非洲caridean虾Lysmata uncicornis Holthuis和Maurin在大西洋的扩张，1952年（Caridea：Lysmatidae）

本研究报告了1952年在东北大西洋沿岸（西班牙加的斯湾和葡萄牙的阿尔加维）出现了一些非洲caridean虾Lysmata uncicornis Holthuis＆Maurin。连翘草是一种未经充分研究的物种，最初是从摩洛哥的大西洋水域描述的，最初是在卡萨布兰卡港口内的4-5米深度的岩石底部收集的。尽管以前没有科学出版物在摩洛哥水域以外报道过该物种，但已在加的斯湾和阿尔加维的沿海水域中采集了一些标本。该物种可能能够沿着欧洲水域成功向北扩展，这可能是全球变暖的结果。也有可能通过海洋水族贸易来扩大这种扩张。近来，野草Lysmata arvoredensisGiraldes，Macedo，Brandão，Baeza和Freire，2018年描述了来自巴西南海岸的一种新虾。然而，形态学和遗传学比较显示Uncicornis L.和arvoredensis L.之间没有差异。因此，L. arvoredensis应该被视为异名L. uncicornis。尽管uncicornis L.很可能是两栖类大西洋物种，例如grashami L.（Gordon，1935），但目前仍不能排除在巴西水域引入uncicornis L.。