Instituto Universitario de Investigación Marina (INMAR), Campus de Excelencia Internacional del Mar (CEI·MAR), Universidad de Cádiz, Av. República Saharaui, s/n, 11510 Puerto Real (Cádiz), Spain..
Department of Invertebrate Zoology and Geology, California Academy of Sciences, 55 Music Concourse Drive, San Francisco, CA 94118, USA..
Zootaxa. 2021 Jun 3;4981(1):151165. doi: 10.11646/zootaxa.4981.1.7.
The genus Orodoris Bergh, 1875 is a small genus that together with Miamira Bergh, 1875, was considered as a junior synonym of Ceratosoma A. Adams Reeve, 1850. This decision was based on a morphological phylogenetic study conducted in 1999 that recovered the monophyly of the Ceratosoma. However, in 2012, molecular evidences led to the resurrection of Miamira, while Orodoris was retained as a junior synonym of Miamira with no further details. Here we revise the status of the genus Orodoris in light of the rediscovery of M. striata (syn. Orodoris striata Eliot, 1904). Our phylogenetic analysis revealed a close sister relationship between Miamira striata and Miamira miamirana Bergh, 1875 which nested within the Miamira clade. Therefore, to retain the monophyly of Miamira, the genus Orodoris should be maintained as a junior synonym of the former. This study proposes a neotype for M. striata and underscores the importance of reviewing historical taxonomic changes and investigating ancient descriptions prior to describing new taxa. Our study also confirms that Miamira magnifica Eliot, 1910 from the Indian Ocean and Miamira flavicostata Baba, 1940 from the Pacific Ocean represent two distinct, sister species.
奥罗多里斯属（Orodoris）Bergh，1875 年与米亚米拉属（Miamira）Bergh，1875 年一起被认为是 Ceratosoma A. Adams Reeve，1850 的一个亚属同义词。这一决定基于 1999 年进行的形态系统发育研究，该研究恢复了 Ceratosoma 的单系性。然而，在 2012 年，分子证据导致米亚米拉属（Miamira）的复活，而奥罗多里斯属（Orodoris）则被保留为米亚米拉属（Miamira）的一个亚属同义词，没有进一步的细节。本文根据米亚米拉条纹蟹（M. striata，syn. Orodoris striata Eliot，1904）的重新发现，修订了奥罗多里斯属的地位。我们的系统发育分析表明，米亚米拉条纹蟹（Miamira striata）和米亚米拉米亚米拉属（Miamira miamirana Bergh，1875）之间存在密切的姐妹关系，后者嵌套在米亚米拉属（Miamira）分支内。因此，为了保持米亚米拉属（Miamira）的单系性，奥罗多里斯属（Orodoris）应作为其亚属同义词保留。本研究为米亚米拉条纹蟹（M. striata）提出了一个新的模式标本，并强调了在描述新分类单元之前，审查历史分类变化和调查古代描述的重要性。本研究还证实，来自印度洋的米亚米拉美丽蟹（Miamira magnifica Eliot，1910）和来自太平洋的米亚米拉黄斑蟹（Miamira flavicostata Baba，1940）是两个不同的、姐妹种。
