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Systematic review of the “Chromodoris quadricolor group” of East Africa, with descriptions of two new species of the genus Chromodoris Alder & Hancock, 1855 (Heterobranchia, Nudibranchia)
Journal of Zoological Systematics and Evolutionary Research ( IF 1.9 ) Pub Date : 2019-11-25 , DOI: 10.1111/jzs.12334
Yara Tibiriçá 1, 2 , Marta Pola 3 , Deneb Ortigosa 2, 4 , Juan Lucas Cervera 2, 5
Affiliation  

The similarities and variations in nudibranch species of the “Chromodoris quadricolor group” (Heterobranchia, Nudibranchia) have historically created identification problems among both nudibranch enthusiasts and experts. In this study, we combine molecular genetic analyses using one nuclear gene (histone h3) and two mitochondrial genes (cytochrome c oxidase subunit I and ribosomal 16S RNA) with morphological data to ameliorate the identification of specimens from this complex in East Africa. We include a detailed examination of polymorphisms within the group. As a result, Chromodoris boucheti is synonymized with Chromodoris lochi, and two new species are described, Chromodoris celinae sp. nov. and Chromodoris helium sp. nov. Chromodoris celinae sp. nov. is a common shallow water species that was previously misidentified as C. hamiltoni. Chromodoris helium sp. nov. is a species that appears to be restricted to depths below 30 m. This study agrees with previous research indicating the recent divergence of the genus Chromodoris.

中文翻译:

对东非“四色线虫(Chromodoris quadricolor)群”的系统评价,并描述了两种新的色线虫属(Chromodoris Alder&Hancock),1855年(Heterobranchia,Nudibranchia)

历史上,“四色线虫Chromodoris quadricolor group)”(裸翅目,Nudebranchia)的裸)科物种的相似性和变异性一直在裸udi科爱好者和专家之间造成识别问题。在这项研究中,我们将使用一个核基因(组蛋白h3)和两个线粒体基因(细胞色素c氧化酶亚基I核糖体16S RNA)的分子遗传学分析与形态学数据相结合,以改善从该复合物中东非的标本鉴定。我们在组内包括了多态性的详细检查。结果,Chromodoris boucheti称为Chromodoris lochi,并且描述了两个新物种,Chromodoris celinae sp。十一月 和Chromodoris氦气sp。十一月 Chromodoris celinae sp。十一月 是常见的浅水物种,以前被误认为C. hamiltoni。铬铬氦sp。十一月 是一种似乎仅限于30 m以下深度的物种。这项研究与先前的研究一致,表明嗜铬属(Chromodoris)属最近有分歧。
更新日期:2019-11-25
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