{"refrec":{"BRefID":416561,"RR":"<b>Sørensen, M.V.; Macheriotou, L.; Braeckman, U.; Smith, C.R.; Ingels, J.</b> (2025). Antarctic Kinorhyncha: Seven new species from the Antarctic Peninsula. <i>Eur. J. Taxon. 1000</i>: 1-102. <a href=\"https://dx.doi.org/10.5852/ejt.2025.1000.2947\" target=\"_blank\">https://dx.doi.org/10.5852/ejt.2025.1000.2947</a>","BEntID":414391,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Eur. J. Taxon. 1000</i>: 1-102. <a href=\"https://dx.doi.org/10.5852/ejt.2025.1000.2947\" target=\"_blank\">https://dx.doi.org/10.5852/ejt.2025.1000.2947</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Sørensen, M.V.; Macheriotou, L.; Braeckman, U.; Smith, C.R.; Ingels, J.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Sørensen, M.V. <i>et al.</i>","Englishabstract":"With only three named species, Antarctica is the continent with the least explored kinorhynch biodiversity. The present contribution provides the most comprehensive study of Antarctic kinorhynchs collected along the coast of the West Antarctic Peninsula. Quantitative samples were collected in three regions along the Peninsula: in Andvord Bay Fjord at the Danco Coast, in the Gerlache Strait, and on the open continental shelf west of the Peninsula. Comparison of the sampling areas suggests that the highest kinorhynch abundance was in the Gerlache Strait, where kinorhynchs were over six times more abundant than in Andvord Bay. Lowest abundance was on the open shelf, where the abundance was four times lower than in Andvord Bay. Among all examined specimens 98% were found in the top 4 cm of the sediment. All adult kinorhynchs were identified, and the study revealed the presence of the known Antarctic species <i>Polacanthoderes shiraseae </i>and at least seven species new to science: <i>Condyloderes notios</i> sp. nov., <i>Polacanthoderes grzelakae </i>sp. nov., <i>Echinoderes ahlfeldae </i>sp. nov., <i>E. nataliae</i> sp. nov., <i>E. kathleenhannae</i> sp. nov., <i>E. antarcticus</i> sp. nov., and <i>E. crux</i> sp. nov. In addition to the five new species of <i>Echinoderes</i>, two potentially known species are reported. <i>Echinoderes</i> aff.<i> angustus</i> shows close resemblance to the Arctic <i>E. angustus</i>, and the specimens only differed by their lack of a midventral fissure in segment 2, present in Arctic specimens of <i>E. angustus </i>only. A detailed examination of the <i>E. angustus </i>type material revealed new diagnostic details for the species, i.e., a complete mapping of sensory spots, presence of a middorsal protuberance between segments 10 and 11, and a tergal division of segment 11. Another unidentified species, <i>Echinoderes </i>aff. <i>beringiensis/romanoi/xalkutaat</i>, showed such close resemblance to three congeners that further studies are needed to identify clear diagnostic characters for the species, or alternatively clarify whether they should be synonymised. The comparisons prompted by the two unidentified species led to the suggestion of a new species group, the <i>Echinoderes remanei</i> species group, including <i>E. remanei</i>, <i>E. angustus</i>, <i>E. beringiensis</i>, <i>E. cernunnos</i>, <i>E. drogoni</i>, <i>E. galadrielae</i>, <i>E. obtuspinosus</i>, <i>E. quasae</i>, <i>E. pennaki</i>, <i>E. romanoi</i>, and <i>E. xalkutaat</i>. In addition, the <i>Echinoderes aragorni</i> species group is proposed, including the New Zealand species&nbsp;<br><i>E. aragorni </i>and the new species <i>E. crux</i>.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Antarctic Kinorhyncha: Seven new species from the Antarctic Peninsula","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-17 01:33:02.324431","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"kinorhynchs, Scalidophora","OtherDescriptors":null,"Notes":null,"AnaPub":2025,"MonPub":null,"DateUpdate":"2025-09-19","DateCreate":"2025-09-15","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:001530355500001","VABBcode":null,"OpenAcc":1,"DOI":"10.5852/ejt.2025.1000.2947"},"refs":null,"anarec":{"AnaID":416561,"PubliDate":2025,"Pagination":"1-102","XtraPublOfAnaID":null,"ISBN":null,"Volume":"1000","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":215336,"SerRR":"European Journal of Taxonomy. 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