Integrative taxonomy supports the establishment of a new deep-sea family of Tanaidacea (Peracarida)

IF 3 2区生物学 Q1 ZOOLOGY

Zoological Journal of the Linnean Society Pub Date : 2024-04-06 DOI:10.1093/zoolinnean/zlae013

Magdalena Błażewicz, Aleksandra Jakiel, Graham J Bird, Maciej Studzian

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引用次数: 0

Abstract

The tanaidacean family Colletteidae is large and exhibits highly diverse morphologies. A significant structural feature, the cephalothorax-cheliped attachment, is one of the sources of this variation but is still poorly understood or resolved in phylogenetic terms. The presence (and wide intrafamily disparities) of a lateral carapacial sclerite associated with this articulation is the main contributor to the diversity and this is investigated by us and shown to have valuable information for paratanaoidean phylogenies. We used integrative taxonomy to evaluate the status of several described colletteid genera, Caudalonga, Macrinella and Pseudoarthrura, based on analysis of COI and 18S genes, comparison with molecular data from ten other paratanaoidean families and detailed morphological study including confocal imaging of whole specimens, with the ‘sclerite’ a prime target for analysis. The results supported the establishment of a new family, Caudalongidae fam. nov., extracted from the overburdened Colletteidae, the narrow-bodied taxa defined principally by the small cheliped sclerite partly covered by a wide membrane and a short one-articled uropodal exopod. Apart from redescriptions/redefinitions of the genera Caudalonga, Macrinella, and Pseudoarthrura, two new genera Facultatotanais gen. nov. and Universitatotanais gen. nov. are erected and six new species are described, Caudalonga kurilensis sp. nov., F. bios sp. nov., U. freie sp. nov., U. gandavensis sp. nov., U. harvardi sp. nov., and U. jagiellonensis sp. nov. The Clarion Clipperton-Fracture Zone appears to support a high diversity of the family.

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综合分类法支持建立一个新的深海坛鲷科（Peracarida）

海牛科（Colletteidae）种类繁多，形态各异。一个重要的结构特征--头胸部与螯足的连接，是造成这种差异的原因之一，但人们对它的了解还很少，在系统发育方面也很难解决。与这一连接相关的侧腕骨的存在（以及广泛的科内差异）是造成多样性的主要原因，我们对其进行了研究，结果表明它对副腕足动物的系统发育具有重要价值。我们根据 COI 和 18S 基因的分析、与其他十个副栉水母科的分子数据的比较以及详细的形态学研究（包括整个标本的共聚焦成像），以 "硬骨 "为主要分析目标，采用综合分类法评估了几个已描述的栉水母属（Caudalonga、Macrinella 和 Pseudoarthrura）的地位。研究结果支持建立一个新的科，Caudalongidae fam. nov.除了对 Caudalonga 属、Macrinella 属和 Pseudoarthrura 属进行重新描述/定义外，还建立了两个新属 Facultatotanais gen、F. bios sp. nov.、U. freie sp. nov.、U. gandavensis sp. nov.、U. harvardi sp. nov.和 U. jagiellonensis sp. nov.克拉里昂-克利珀顿-断裂带似乎支持该科的高度多样性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Zoological Journal of the Linnean Society 生物-动物学

CiteScore

6.50

自引率

10.70%

发文量

116

审稿时长

6-12 weeks

期刊介绍： The Zoological Journal of the Linnean Society publishes papers on systematic and evolutionary zoology and comparative, functional and other studies where relevant to these areas. Studies of extinct as well as living animals are included. Reviews are also published; these may be invited by the Editorial Board, but uninvited reviews may also be considered. The Zoological Journal also has a wide circulation amongst zoologists and although narrowly specialized papers are not excluded, potential authors should bear that readership in mind.