Oliver P Graham, Garzia Matteo, Paulay Gustav, Salvi Daniele
National Museum of Wales, Cathays Park, Cardiff CF10 3NP, UK National Museum of Wales Cardiff United Kingdom.
Department of Health, Life and Environmental Sciences, University of L'Aquila, Via Vetoio snc, 67100 L'Aquila-Coppito, Italy University of L'Aquila L'Aquila-Coppito Italy.
Zookeys. 2025 Jun 27;1243:207-224. doi: 10.3897/zookeys.1243.152856. eCollection 2025.
Molecular and morphological data suggest that the Mediterranean populations of the non-indigenous genus are part of a single clade. This clade includes oysters from Rodrigues but is distinct from oysters from Hawaii and Mauritius. Based on morphology and sequence data, the Hawaiian and Mauritian oysters can be referred to as Sowerby, 1871. The Mediterranean/Rodrigues clade, although morphologically very similar to , is significantly genetically distant from it and from and . As a result, the Mediterranean/Rodrigues clade cannot be assigned to any currently accepted nominal species. However, the statuses of the junior synonyms of are based on morphology and are therefore reconsidered with the result that Sowerby, 1871 is shown to be morphologically very similar to the Mediterranean/Rodrigues clade. Given that the type locality of is the Red Sea, and that Mediterranean populations are considered tropical invaders, is a likely candidate name. However, without supporting sequence data from the type locality in the Red Sea, we conservatively conclude that the most appropriate name for the Mediterranean/Rodrigues clade is Dendostreacf.crenulifera (Sowerby, 1871).
分子和形态学数据表明，非本土属的地中海种群是单一进化枝的一部分。该进化枝包括来自罗德里格斯岛的牡蛎，但与来自夏威夷和毛里求斯的牡蛎不同。根据形态学和序列数据，夏威夷和毛里求斯的牡蛎可归为1871年的索厄比（Sowerby）所描述的种类。地中海/罗德里格斯进化枝虽然在形态上与该种类非常相似，但在基因上与它以及其他相关种类有显著差异。因此，地中海/罗德里格斯进化枝不能被归入任何目前被认可的命名物种。然而，该种类的次异名地位是基于形态学的，因此需要重新考虑，结果表明1871年的索厄比（Sowerby）所描述的种类在形态上与地中海/罗德里格斯进化枝非常相似。鉴于该种类的模式产地是红海，并且地中海种群被认为是热带入侵者，这是一个可能的候选名称。然而，由于没有来自红海模式产地的支持性序列数据，我们保守地得出结论，地中海/罗德里格斯进化枝最合适的名称是Dendostreacf.crenulifera（索厄比，1871年）。
