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The confusion seems attributable to the substantial intraspecific variation in color and other morphological characteristics of species of <jats:italic>Oxygaster<\/jats:italic> and <jats:italic>Parachela<\/jats:italic>. Morphological data on 401 specimens from throughout the range of <jats:italic>Parachela<\/jats:italic> and molecular phylogenetic analyses indicate that six available species names for <jats:italic>Parachela<\/jats:italic> are valid: <jats:italic>Parachela cyanea<\/jats:italic>, <jats:italic>P. hypophthalmus<\/jats:italic>, <jats:italic>Parachela ingerkongi<\/jats:italic>, <jats:italic>Parachela johorensis<\/jats:italic> (removed from the synonymy of <jats:italic>P. oxygastroides<\/jats:italic>), <jats:italic>P. oxygastroides<\/jats:italic>, and <jats:italic>Parachela williaminae<\/jats:italic>. In addition, two new species of <jats:italic>Parachela<\/jats:italic>, <jats:italic>Parachela melanosticta<\/jats:italic> and <jats:italic>Parachela microlepis<\/jats:italic>, are described. <jats:italic>Chela pointoni<\/jats:italic> is a synonym of <jats:italic>P. oxygastroides<\/jats:italic>, not a valid species of <jats:italic>Oxygaster<\/jats:italic> as previously hypothesized, and <jats:italic>Parachela maculicauda<\/jats:italic> is a synonym of <jats:italic>Parachela johorensis<\/jats:italic>. Considerable morphological and genetic variation is present in all well\u2010sampled species of <jats:italic>Parachela<\/jats:italic>.<\/jats:p>","DOI":"10.1111\/jfb.15869","type":"journal-article","created":{"date-parts":[[2024,9,20]],"date-time":"2024-09-20T05:46:47Z","timestamp":1726811207000},"page":"1875-1905","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["A taxonomic revision of <i>Parachela<\/i> with descriptions of two new species (Cypriniformes: Xenocyprididae)"],"prefix":"10.1111","volume":"105","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8823-0729","authenticated-orcid":false,"given":"Lawrence M.","family":"Page","sequence":"first","affiliation":[{"name":"Florida Museum of Natural History University of Florida  Gainesville Florida USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-1961-7210","authenticated-orcid":false,"given":"Weerapongse","family":"Tangjitjaroen","sequence":"additional","affiliation":[{"name":"Faculty of Veterinary Medicine Chiang Mai University  Chiang Mai Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0006-0785-0114","authenticated-orcid":false,"given":"Jirasin","family":"Limpichat","sequence":"additional","affiliation":[{"name":"Faculty of Science Ramkhamhaeng University  Bangkok Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8973-3304","authenticated-orcid":false,"given":"Zachary S.","family":"Randall","sequence":"additional","affiliation":[{"name":"Florida Museum of Natural History University of Florida  Gainesville Florida USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8516-6696","authenticated-orcid":false,"given":"David A.","family":"Boyd","sequence":"additional","affiliation":[{"name":"Louisiana State University Museum of Natural Science  Baton Rouge Louisiana USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-4899-908X","authenticated-orcid":false,"given":"Sampan","family":"Tongnunui","sequence":"additional","affiliation":[{"name":"Department of Conservation Biology Mahidol University  Kanchanaburi Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5368-0589","authenticated-orcid":false,"given":"John M.","family":"Pfeiffer","sequence":"additional","affiliation":[{"name":"Department of Invertebrate Zoology Smithsonian Institution, National Museum of Natural History  Washington DC USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2024,9,19]]},"reference":[{"key":"e_1_2_8_2_1","first-page":"128","article-title":"Notes on a re\u2010examination of some Bleeker type specimens of Indo\u2010Malayan fresh\u2010water fishes. 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