{"title":"<i>Polydendrorhynchus amaleshii</i> sp. nov., a New Species With Branched Proboscis (Nemertea: Heteronemertea) From the North-East Coastal Bay of Bengal.","authors":"Soumik Dhara, Jhumpa Majhi, Biplab Mandal, Punyasloke Bhadury, Sachchidananda Bhattacharya, Sudipta Kumar Ghorai","doi":"10.2108/zs240093","DOIUrl":null,"url":null,"abstract":"<p><p>A new lineid heteronemertean with a branched proboscis, <i>Polydendrorhynchus amaleshii</i> sp. nov., is described as the second member of the genus <i>Polydendrorhynchus</i> Yin and Zeng, 1986, following <i>Polydendrorhynchus zhanjiangensis</i> (Yin and Zeng, 1984). The description is based on specimens collected from the northeastern coastal Bay of Bengal, including the Subarnarekha Estuary and Frazerganj in the Indian Sundarbans mangrove ecosystem. The new species is distinguished from its congener by having up to 56 terminal branchlets of the proboscis and the absence of rhynchocoel compartments. In a maximum-likelihood phylogenetic analysis based on COI and 16S rRNA genes, <i>P. amaleshii</i> and <i>P. zhanjiangensis</i> formed a well-supported clade. <i>Polydendrorhynchus amaleshii</i> represents the ninth nemertean species recorded from India.</p>","PeriodicalId":24040,"journal":{"name":"Zoological Science","volume":"42 3","pages":"326-334"},"PeriodicalIF":1.0000,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Zoological Science","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.2108/zs240093","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ZOOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
A new lineid heteronemertean with a branched proboscis, Polydendrorhynchus amaleshii sp. nov., is described as the second member of the genus Polydendrorhynchus Yin and Zeng, 1986, following Polydendrorhynchus zhanjiangensis (Yin and Zeng, 1984). The description is based on specimens collected from the northeastern coastal Bay of Bengal, including the Subarnarekha Estuary and Frazerganj in the Indian Sundarbans mangrove ecosystem. The new species is distinguished from its congener by having up to 56 terminal branchlets of the proboscis and the absence of rhynchocoel compartments. In a maximum-likelihood phylogenetic analysis based on COI and 16S rRNA genes, P. amaleshii and P. zhanjiangensis formed a well-supported clade. Polydendrorhynchus amaleshii represents the ninth nemertean species recorded from India.
期刊介绍：
Zoological Science is published by the Zoological Society of Japan and devoted to publication of original articles, reviews and editorials that cover the broad field of zoology. The journal was founded in 1984 as a result of the consolidation of Zoological Magazine (1888–1983) and Annotationes Zoologicae Japonenses (1897–1983), the former official journals of the Zoological Society of Japan. Each annual volume consists of six regular issues, one every two months.
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