{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T14:55:28Z","timestamp":1790866528726,"version":"4.1.0"},"reference-count":68,"publisher":"Pensoft Publishers","license":[{"start":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T00:00:00Z","timestamp":1790812800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["ZK"],"abstract":"<jats:p>\n                    The family Moniligastridae Claus, 1880 remains taxonomically poorly resolved, and its actual species diversity is likely severely underestimated. Despite its ecological significance as an East Asian endemic species,\n                    <jats:italic>Drawida gisti<\/jats:italic>\n                    Michaelsen, 1931 has been studied almost exclusively from non-taxonomic perspectives. Consequently, its species boundaries remain poorly understood. Here, we formally establish the\n                    <jats:italic>Drawida gisti<\/jats:italic>\n                    species complex (DiSC), comprising eight morphologically and geographically related species. We employed an integrative taxonomic approach combining morphology and molecular data to examine specimens of DiSC from northeastern China, leading to the description of a new species,\n                    <jats:italic>Drawida xuqini<\/jats:italic>\n                    <jats:bold>sp. nov<\/jats:bold>\n                    . The new species is characterized by a colorless body in alcohol, 3\u20135 gizzards, M-shaped prostates, a very short and uncoiled vas deferens, and thick penes with a swollen base and blunt, rounded apex. Phylogenetic analyses based on 13 protein-coding genes of the mitochondrial genome of\n                    <jats:italic>Drawida<\/jats:italic>\n                    employing two molecular species delimitation methods\u2014Assemble Species by Automatic Partitioning (ASAP), and Bayesian Phylogenetics and Phylogeography (BPP)\u2014recovered\n                    <jats:italic>D. xuqini<\/jats:italic>\n                    <jats:bold>sp. nov<\/jats:bold>\n                    . as a monophyletic lineage, and COI genetic distances (19.4\u201322.0% between\n                    <jats:italic>D. xuqini<\/jats:italic>\n                    <jats:bold>sp. nov<\/jats:bold>\n                    . and\n                    <jats:italic>D. gisti gisti<\/jats:italic>\n                    ) confirmed the species status of\n                    <jats:italic>D. xuqini<\/jats:italic>\n                    <jats:bold>sp. nov<\/jats:bold>\n                    . Additionally, we provide an updated redescription of\n                    <jats:italic>D. gisti gisti<\/jats:italic>\n                    based on newly examined specimens from multiple localities. Our findings highlight considerable external morphological plasticity in\n                    <jats:italic>D. gisti gisti<\/jats:italic>\n                    , which may likely be environmentally induced, and underscore the necessity of integrative approaches for accurate species delimitation in this group.\n                  <\/jats:p>","DOI":"10.3897\/zookeys.1293.204408","type":"journal-article","created":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T14:03:39Z","timestamp":1790863419000},"page":"327-346","source":"Crossref","is-referenced-by-count":0,"title":["Establishment of the Drawida gisti species complex and description of a new species from northeastern China (Oligochaeta, Moniligastridae)"],"prefix":"10.3897","volume":"1293","author":[{"given":"Saiyu","family":"Qiao","sequence":"first","affiliation":[{"name":"Hebei Key Laboratory of Animal Diversity, Langfang Normal University, Langfang, China"},{"name":"Hebei Key Laboratory of Zoological Systematics and Application, College of Life Sciences, Hebei University, Baoding, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiangni","family":"Li","sequence":"additional","affiliation":[{"name":"Hebei Key Laboratory of Animal Diversity, Langfang Normal University, Langfang, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yufeng","family":"Zhang","sequence":"additional","affiliation":[{"name":"Hebei Key Laboratory of Animal Diversity, Langfang Normal University, Langfang, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nonillon M.","family":"Aspe","sequence":"additional","affiliation":[{"name":"College of Environment and Life Sciences, Mindanao State University at Naawan, Naawan, Philippines"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Huifeng","family":"Zhao","sequence":"additional","affiliation":[{"name":"Hebei Key Laboratory of Animal Diversity, Langfang Normal University, Langfang, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"2258","published-online":{"date-parts":[[2026,10,1]]},"reference":[{"key":"204408_B1","doi-asserted-by":"publisher","DOI":"10.1186\/s12862-017-0973-4"},{"key":"204408_B2","doi-asserted-by":"publisher","DOI":"10.11646\/zootaxa.5763.2.6"},{"key":"204408_B3","doi-asserted-by":"publisher","DOI":"10.19336\/j.cnki.trtb.2025012201"},{"key":"204408_B4","doi-asserted-by":"publisher","DOI":"10.12651\/JSR.2012.1.1.035"},{"key":"204408_B5","doi-asserted-by":"crossref","unstructured":"Blakemore RJ, Kupriyanova EK (2010) Unraveling some Kinki worms (Annelida: Oligo- chaeta: Megadrili: Moniligastridae) - Part I. 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