{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,15]],"date-time":"2025-07-15T00:04:44Z","timestamp":1752537884789,"version":"3.41.2"},"reference-count":0,"publisher":"Cambridge University Press (CUP)","issue":"6","license":[{"start":{"date-parts":[[2025,6,16]],"date-time":"2025-06-16T00:00:00Z","timestamp":1750032000000},"content-version":"unspecified","delay-in-days":46,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0"}],"content-domain":{"domain":["cambridge.org"],"crossmark-restriction":true},"short-container-title":["Parasitology"],"published-print":{"date-parts":[[2025,5]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The caryophyllidean tapeworm <jats:italic>Khawia armeniaca<\/jats:italic> has long been regarded as an exceptionally widespread species within its genus, notable for its significant morphological variability. However, with the accumulation of molecular data from different fish hosts, <jats:italic>K. armeniaca<\/jats:italic> was suspected to represent a species complex. To clarify the true identity of these parasites, a comprehensive morphological and molecular study (using 18S, 28S and ITS2 ribosomal regions) of <jats:italic>K. armeniaca<\/jats:italic> tapeworms from barbels (Barbinae) across the Iberian Peninsula and the Middle East has been conducted. The results revealed two genetically distinct lineages within the <jats:italic>K. armeniaca<\/jats:italic> complex. The first lineage, found in <jats:italic>Arabibarbus grypus, Barbus lacerta, Capoeta birunii, Carassobarbus luteus, Luciobarbus barbulus, L. esocinus<\/jats:italic> and <jats:italic>L. kersin<\/jats:italic> in Iraq and Iran, is genetically congruent with <jats:italic>K. armeniaca<\/jats:italic> (Cholodkovsky, 1915), originally described from the Sevan khramulya (<jats:italic>Capoeta sevangi<\/jats:italic>) in Armenia. The second lineage, identified in <jats:italic>Luciobarbus bocagei<\/jats:italic> (type host), <jats:italic>L. comizo<\/jats:italic> and <jats:italic>L. guiraonis<\/jats:italic> from Portugal and Spain, is described as <jats:italic>Khawia iberica<\/jats:italic> n. sp. In addition to clear molecular divergence, <jats:italic>K. iberica<\/jats:italic> can be distinguished from <jats:italic>K. armeniaca<\/jats:italic> by notable morphological differences, including variations in the shape, structure and size of the ovary, the anterior extension of the vitelline follicles, the testes and several morphometric parameters.<\/jats:p>","DOI":"10.1017\/s0031182025100206","type":"journal-article","created":{"date-parts":[[2025,6,16]],"date-time":"2025-06-16T07:44:24Z","timestamp":1750059864000},"page":"618-631","update-policy":"https:\/\/doi.org\/10.1017\/policypage","source":"Crossref","is-referenced-by-count":0,"title":["The diversity of <i>Khawia<\/i> tapeworms (Cestoda: Caryophyllidea) of barbels (Cyprinidae: Barbinae) in the western Palearctic: the existence of vicariant lineages and the description of a new species from the Iberian Peninsula"],"prefix":"10.1017","volume":"152","author":[{"given":"Kamila","family":"Koutn\u00e1","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4358-9332","authenticated-orcid":false,"given":"Michal","family":"Benovics","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6340-3750","authenticated-orcid":false,"given":"Tom\u00e1\u0161","family":"Scholz","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"56","published-online":{"date-parts":[[2025,6,16]]},"container-title":["Parasitology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S0031182025100206","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,7,14]],"date-time":"2025-07-14T08:06:49Z","timestamp":1752480409000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S0031182025100206\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,5]]},"references-count":0,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2025,5]]}},"alternative-id":["S0031182025100206"],"URL":"https:\/\/doi.org\/10.1017\/s0031182025100206","relation":{},"ISSN":["0031-1820","1469-8161"],"issn-type":[{"type":"print","value":"0031-1820"},{"type":"electronic","value":"1469-8161"}],"subject":[],"published":{"date-parts":[[2025,5]]},"assertion":[{"value":"\u00a9 The Author(s), 2025. Published by Cambridge University Press.","name":"copyright","label":"Copyright","group":{"name":"copyright_and_licensing","label":"Copyright and Licensing"}},{"value":"This is an Open Access article, distributed under the terms of the Creative Commons Attribution-NonCommercial licence (http:\/\/creativecommons.org\/licenses\/by-nc\/4.0), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original article is properly cited. The written permission of Cambridge University Press must be obtained prior to any commercial use.","name":"license","label":"License","group":{"name":"copyright_and_licensing","label":"Copyright and Licensing"}},{"value":"This content has been made available to all.","name":"free","label":"Free to read"}]}}