科研之友
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摘要
A new species of nudibranch mollusc of the genus Okenia Menke, 1830 is described from Pico Island, in the archipelago of the Azores (Portugal). This genus has a worldwide distribution but there were no published records of Okenia species from this area. Okenia picoensis spec. nov. shows intraspecific variation in its colour pattern. It may present white colouration with the top of their appendices yellow, or bright yellow with the top of its appendices orange. The description is complemented with molecular data obtained from the mitochondrial genes cytochrome c oxidase and 16S rRNA. The new species is compared with other Okenia regarding morphological characters as well as genetic distances and geographic distribution. A preliminary phylogenetic tree based on COI sequences including all Okenia available at the moment is also included.
- 出版日期2017-8
