{"title":"A New Species in the Rare Genus <i>Mesocrista</i> (Eutardigrada) from New York (U S A).","authors":"Judy Dobles, Piotr Gąsiorek","doi":"10.2108/zs260003","DOIUrl":null,"url":null,"abstract":"<p><p>During a recent survey of tardigrades at the Cumming Nature Center (owned by the Rochester Museum & Science Center; New York, U S A), a new species of the rare and oligospecific genus <i>Mesocrista</i> was discovered. We provide an integrative description of this new species based on morphology and genetics (four standard DNA markers used in eutardigrade taxonomy). <i>Mesocrista ojagwaji</i> sp. nov. exhibits a combination of characters intermediate between those of <i>M. spitzbergensis</i> (Richters, 1903) and <i>M. revelata</i> Gąsiorek, Stec, Morek, Zawierucha, Kaczmarek, Lachowska-Cierlik, and Michalczyk, 2016, but the conducted phylogenetic analyses indicated that it is a sister species of the latter. Subtle morphological disparities with regard to <i>M. revelata</i> suggest a recent divergence event and deliver a new case of pseudocryptic tardigrade species.</p>","PeriodicalId":24040,"journal":{"name":"Zoological Science","volume":"43 4","pages":"426-432"},"PeriodicalIF":1.0000,"publicationDate":"2026-08-01","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/zs260003","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
During a recent survey of tardigrades at the Cumming Nature Center (owned by the Rochester Museum & Science Center; New York, U S A), a new species of the rare and oligospecific genus Mesocrista was discovered. We provide an integrative description of this new species based on morphology and genetics (four standard DNA markers used in eutardigrade taxonomy). Mesocrista ojagwaji sp. nov. exhibits a combination of characters intermediate between those of M. spitzbergensis (Richters, 1903) and M. revelata Gąsiorek, Stec, Morek, Zawierucha, Kaczmarek, Lachowska-Cierlik, and Michalczyk, 2016, but the conducted phylogenetic analyses indicated that it is a sister species of the latter. Subtle morphological disparities with regard to M. revelata suggest a recent divergence event and deliver a new case of pseudocryptic tardigrade species.
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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