{"title":"<b>Two new species of the genus <i>Tiwaripotamon</i> Bott, 1970 (Crustacea, Decapoda, Brachyura, Potamidae) from Guangxi, China</b>.","authors":"Yuxin Chen, Hongying Sun, D A Pan","doi":"10.11646/zootaxa.5837.1.5","DOIUrl":null,"url":null,"abstract":"<p><p>Two new species of semiterrestrial freshwater crabs, <i>Tiwaripotamon</i><i>laibinense</i><b>sp. nov.</b> and <i>Tiwaripotamon</i><i>liuzhouense</i><b>sp. nov.</b>, are described from karst landscapes in Guangxi, China. These crabs are characterized by their relatively long and slender ambulatory legs, an adaptation commonly associated with a semiterrestrial lifestyle. Both species are distinguished from their congeners by a combination of characters, notably the structure of the male first gonopod and features of the carapace. Estimates of Kimura two-parameter distances based on mitochondrial COI sequences support the recognition of the two new species. With these additions, the number of <i>Tiwaripotamon</i> species known from China increases to six, further highlighting the karst regions of southern China as a hotspot of freshwater crab diversity.</p>","PeriodicalId":24072,"journal":{"name":"Zootaxa","volume":"5837 1","pages":"126-142"},"PeriodicalIF":0.9000,"publicationDate":"2026-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Zootaxa","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.11646/zootaxa.5837.1.5","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
Two new species of semiterrestrial freshwater crabs, Tiwaripotamonlaibinensesp. nov. and Tiwaripotamonliuzhouensesp. nov., are described from karst landscapes in Guangxi, China. These crabs are characterized by their relatively long and slender ambulatory legs, an adaptation commonly associated with a semiterrestrial lifestyle. Both species are distinguished from their congeners by a combination of characters, notably the structure of the male first gonopod and features of the carapace. Estimates of Kimura two-parameter distances based on mitochondrial COI sequences support the recognition of the two new species. With these additions, the number of Tiwaripotamon species known from China increases to six, further highlighting the karst regions of southern China as a hotspot of freshwater crab diversity.
期刊介绍：
Zootaxa is a peer-reviewed international journal for rapid publication of high quality papers on any aspect of systematic zoology, with a preference for large taxonomic works such as monographs and revisions. Zootaxa considers papers on all animal taxa, both living and fossil, and especially encourages descriptions of new taxa. All types of taxonomic papers are considered, including theories and methods of systematics and phylogeny, taxonomic monographs, revisions and reviews, catalogues/checklists, biographies and bibliographies, identification guides, analysis of characters, phylogenetic relationships and zoogeographical patterns of distribution, descriptions of taxa, and nomenclature. Open access publishing option is strongly encouraged for authors with research grants and other funds. For those without grants/funds, all accepted manuscripts will be published but access is secured for subscribers only.
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