{"title":"Discovery of a New Sea Spider Belonging to the Genus <i>Pycnogonum</i> (Pycnogonida: Pycnogonidae) in the Mesophotic Zone of Jejudo Island, Korea.","authors":"Damin Lee, Jin-Ho Park, Taeseo Park","doi":"10.6620/ZS.2023.62-23","DOIUrl":null,"url":null,"abstract":"<p><p>A new species of the genus <i>Pycnogonum</i> was discovered in the mesophotic zone of Munseom Islet, Jejudo Island, Korea. <i>Pycnogonum</i> (<i>Nulloviger</i>) <i>bifurcatum</i> sp. nov. is the first case of sea spiders in Korean fauna not only included in the subgenus <i>Nulloviger</i> but also collected in the mesophotic zone of Munseom Islet. The new species is morphologically close to <i>Pycnogonum</i> (<i>Pycnogonum</i>) <i>asiaticum</i> and <i>P.</i> (<i>N.</i>) <i>carinatum</i>, sharing the granular integument, the dorsomedian tubercles on the trunk, and the post-ocular tubercle. The new species can be easily distinguished from the congeners by combination of the following characteristics: the prominent dorsomedian tubercles on the trunk, the lateral processes 1-3 touching each other, and the small auxiliary claws. A key is provided to distinguish 12 species of the subgenus <i>Nulloviger</i> morphologically, and molecular data of the new species are provided for species identification and further studies.</p>","PeriodicalId":49331,"journal":{"name":"Zoological Studies","volume":"62 ","pages":"e23"},"PeriodicalIF":1.5000,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10317987/pdf/zoolstud-62-023.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Zoological Studies","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.6620/ZS.2023.62-23","RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ZOOLOGY","Score":null,"Total":0}
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Abstract
A new species of the genus Pycnogonum was discovered in the mesophotic zone of Munseom Islet, Jejudo Island, Korea. Pycnogonum (Nulloviger) bifurcatum sp. nov. is the first case of sea spiders in Korean fauna not only included in the subgenus Nulloviger but also collected in the mesophotic zone of Munseom Islet. The new species is morphologically close to Pycnogonum (Pycnogonum) asiaticum and P. (N.) carinatum, sharing the granular integument, the dorsomedian tubercles on the trunk, and the post-ocular tubercle. The new species can be easily distinguished from the congeners by combination of the following characteristics: the prominent dorsomedian tubercles on the trunk, the lateral processes 1-3 touching each other, and the small auxiliary claws. A key is provided to distinguish 12 species of the subgenus Nulloviger morphologically, and molecular data of the new species are provided for species identification and further studies.
期刊介绍：
Zoological Studies publishes original research papers in five major fields: Animal Behavior, Comparative Physiology, Evolution, Ecology, and Systematics and Biogeography. Manuscripts are welcome from around the world and must be written in English. When the manuscript concerns the use of animals or specimens in research, a statement must be included to the effect that the author(s) has adhered to the legal requirements of the country in which the work was carried out or to any institutional guidelines.
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