北极高纬度地区罕见深水底栖动物棘足菌属(桡足目:棘足目:棘足菌科)的首次记录及棘足菌属一新种的描述。

IF 0.7 4区农林科学 Q4 ENTOMOLOGY

Arthropoda Selecta Pub Date : 2022-09-01 DOI:10.15298/arthsel.31.3.02

E. Markhaseva, E. Soldatenko, J. Renz

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引用次数: 1

摘要

摘要。描述了一种新的深水底栖桡足类物种Crassarietellus septentrism，来自北极高地的斯瓦尔巴地区。该新种与Arietellidae的Crassarietellus Ohtsuka属（Boxshall et Roe，1994）在身体结构、口腔部位和游泳腿的形态上具有共同的主要特征，与同类物种的不同之处在于较小的体型、没有凹陷的被膜、触角和口腔部位的一些细节以及刚毛尾支IV，其具有特殊的膨胀形状。本文首次描述了Crassarietellus septentrilis sp.n的一个完整的雄性P5。Crassarietellus属首次记录在高纬度北极（81°N）。这代表了该属最北端的发现。

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First record of the rare deep-water benthopelagic genus Crassarietellus (Copepoda: Calanoida: Arietellidae) from the high Arctic with the description of a new species Crassarietellus septentrionalis sp.n.

the ABSTRACT. A new deep-water benthopelagic copepod species Crassarietellus septentrionalis is described from the Svalbard area in the high Arctic. The new species shares the main characters of the body structure and the morphology of oral parts and swimming legs with the genus Crassarietellus Ohtsuka, Boxshall et Roe, 1994 of the Arietellidae and differs from its congeners in the smaller size, the integument, which is not pitted, some details of the antennule and oral parts armament and the caudal rami seta IV, which is of peculiar swollen shape. An intact male P5 of Crassarietellus septentrionalis sp.n. is herein described for the first time for the genus. The genus Crassarietellus is for the first time recorded in the high Arctic (81°N). This represents the northernmost finding of the genus.

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来源期刊

Arthropoda Selecta Agricultural and Biological Sciences-Insect Science

CiteScore

1.60

自引率

33.30%

发文量

期刊介绍： The open-access, peer-reviewed journal is published mostly in English. The scope of the journal is the morphology, taxonomy, development, life histories, zoogeography, phylogeny and evolution of Crustacea, Chelicerata, Myriapoda and other arthropods, both recent and fossil.