The first report of two new janiroid isopod species (Asellota, Janiroidea) from the western Indian Ocean.

IF 1.3 3区 生物学 Q2 ZOOLOGY ZooKeys Pub Date : 2024-12-03 eCollection Date: 2024-01-01 DOI:10.3897/zookeys.1219.130895
Valiallah Khalaji-Pirbalouty, Manal Abdulrahman Al-Kandari
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Abstract

Two new janiroid isopod species, Heterosignumbehbehanii sp. nov. and Uromunnaalyamanii sp. nov., are described from the Kuwaiti waters, representing the first record of the genera in the western Indian Ocean. Heterosignumbehbehanii sp. nov. is distinguished from its congeners by pereonites 2-7 with a pair of short single lateral spine-like processes; the relatively short length of the anterior part of its pleotelson, which accounts for about 0.1 of the total length of the pleotelson; and the stylet with an elongate, downwardly curved, and distally pointed apex. Uromunnaalyamanii sp. nov. is equally unique, with the pleotelson bearing two denticles on each lateral margin, pleopod 2 endopod stylet extending beyond the apex of the protopod, and pleopod 4 exopod distal tip with a long plumose seta. This discovery of unique characteristics of the new species significantly enhances our understanding of marine biodiversity in the western Indian Ocean and underscores the importance of further research in this area. The identification keys are provided to all known species of Heterosignum and Indian Ocean Uromunna species.

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The西印度洋janirod类等足动物二新种(Asellota, janiro总科)首次报道。
在科威特海域发现了异种等足类动物Heterosignumbehbehanii sp. nov和Uromunnaalyamanii sp. nov两个新种,这是该属在西印度洋的首次记录。Heterosignumbehbehanii sp. 11 .与其同类的区别在于具有一对短的单侧棘状突起的珍珠岩2-7;其褶子前部长度较短,约占褶子总长度的0.1左右;花柱有一细长的,向下弯曲的,上部尖的先端。Uromunnaalyamanii sp. 11 .同样独特,pleotelson在每侧缘上都有两个小齿,pleopod 2内足类的柱头延伸到原始足类的顶端之外,pleopod 4外足类的远端有一个长羽状的刚毛。这一新物种的独特特征的发现大大提高了我们对西印度洋海洋生物多样性的认识,并强调了在这一领域进一步研究的重要性。提供了所有已知的异尾蛛和印度洋尾蛛的识别密钥。
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来源期刊
ZooKeys
ZooKeys 生物-动物学
CiteScore
2.70
自引率
15.40%
发文量
400
审稿时长
3 months
期刊介绍: ZooKeys is a peer-reviewed, open-access, online and print, rapidly produced journal launched to support free exchange of ideas and information in systematic zoology, phylogeny and biogeography. All papers can be freely copied, downloaded, printed and distributed at no charge. Authors and readers are thus encouraged to post the pdf files of published papers on homepages or elsewhere to expedite distribution. There is no charge for color.
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