Fixing the identity of Scolelepis squamata (Annelida: Spionidae) – neotype designation, redescription and DNA barcode sequences

IF 1.8 3区环境科学与生态学 Q2 BIODIVERSITY CONSERVATION Systematics and Biodiversity Pub Date : 2022-02-04 DOI:10.1080/14772000.2021.2003906

V. Surugiu, M. Schwentner, K. Meißner

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引用次数: 3

Abstract

The identity of Scolelepis squamata (O.F. Müller, 1806) (Spionidae) has long been under debate. For clarification of this problem a collection of Scolelepis specimens at the type locality of this species, the island of Helgoland (North Sea) and in particular the Helgoland Dunes, has been undertaken. Based on morphological and molecular studies the occurrence of only one Scolelepis species can be reported in the eulittoral zone. The specimens are in good accordance with the morphology of S. squamata. Based on these newly collected specimens S. squamata is redescribed and illustrated comprehensively, and, in addition, molecular information on several markers is provided. A neotype has been designated and deposited in the collection of the Zoological Museum at Hamburg University, Germany. Molecular phylogenetic analyses based on COI, 18S rRNA and 28S rRNA reveal little genetic diversity along the Atlantic coast from Helgoland to Portugal and thus support the occurrence of S. squamata in these coastal regions of the Eastern North Atlantic Ocean. Our results further indicate the presence of a distinct Scolelepis species in the Black Sea, which is closely related to S. squamata. Also, S. mesnili is reinstated as a valid species. Furthermore, it is shown that several earlier genetic studies had misidentified S. squamata specimens wrongly as S. foliosa or S. bonnieri, highlighting the need for the taxonomic redescription as well as for providing DNA barcodes from unambiguously identified specimens. http://zoobank.org/urn:lsid:zoobank.org:pub:0D6C3783-FF06-4D84-8D92-B8691E88F0B9

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确定鳞片Scolelelepsis squamata（环节动物纲：蜘蛛科）的身份——新类型命名、重新描述和DNA条形码序列

Scolelelepsis squamata（O.F.Müller，1806）（蜘蛛科）的身份一直存在争议。为了澄清这一问题，已经在该物种的模式所在地黑尔戈兰岛（北海），特别是黑尔戈兰沙丘收集了Scolelepis标本。根据形态学和分子研究，只有一种Scolelepsis物种在真海岸带出现。标本与鳞片藻的形态基本一致。在这些新采集的标本的基础上，对鳞片藻进行了全面的重新描述和说明，并提供了几种标记的分子信息。德国汉堡大学动物博物馆已指定并收藏了一种新型动物。基于COI、18S rRNA和28S rRNA的分子系统发育分析显示，从黑尔戈兰到葡萄牙的大西洋沿岸几乎没有遗传多样性，因此支持了鳞片藻在北大西洋东部沿海地区的发生。我们的研究结果进一步表明，在黑海中存在一种独特的Scolelepis物种，它与鳞片藻密切相关。此外，S.mesnili被恢复为有效物种。此外，研究表明，早期的几项遗传学研究错误地将鳞片S.squamata标本鉴定为对开S.foliosa或S.bonnieri，这突出了分类学重新描述的必要性，以及从明确鉴定的标本中提供DNA条形码的必要性。http://zoobank.org/urn:lsid:zoobank.org:pub:0D6C3783-FF06-4D84-8D92-B8691E88F0B9

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来源期刊

Systematics and Biodiversity 环境科学-生物多样性保护

CiteScore

4.10

自引率

0.00%

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审稿时长

>24 weeks

期刊介绍： Systematics and Biodiversity is devoted to whole-organism biology. It is a quarterly, international, peer-reviewed, life science journal, without page charges, which is published by Taylor & Francis for The Natural History Museum, London. The criterion for publication is scientific merit. Systematics and Biodiversity documents the diversity of organisms in all natural phyla, through taxonomic papers that have a broad context (not single species descriptions), while also addressing topical issues relating to biological collections, and the principles of systematics. It particularly emphasises the importance and multi-disciplinary significance of systematics, with contributions which address the implications of other fields for systematics, or which advance our understanding of other fields through taxonomic knowledge, especially in relation to the nature, origins, and conservation of biodiversity, at all taxonomic levels. The journal does not publish single species descriptions, monographs or applied research nor alpha species descriptions. Taxonomic manuscripts must include modern methods such as cladistics or phylogenetic analysis.