ZooKeys最新文献

{"title":"Five new species of <i>Tetragoniceps</i> Brady, 1880 (Copepoda, Harpacticoida, Tetragonicipitidae) from Korea.","authors":"Kyuhee Cho, Jihye Seo, Jong Guk Kim, Jimin Lee","doi":"10.3897/zookeys.1293.206992","DOIUrl":"10.3897/zookeys.1293.206992","url":null,"abstract":"<p><p>Five new species of the genus <i>Tetragoniceps</i> Brady, 1880, collected from Korean waters, are described. These new species are readily distinguished from other congeners by a unique armature formula of legs 2-4, notably with one inner seta on the two proximal exopodal segments, and six, five, and seven elements on the distal exopodal segments of legs 2-4, respectively, a combination not previously reported in <i>Tetragoniceps</i>. Additional specific diagnostic features of the five new species include the shape and length of the caudal rami, the morphology of leg 5, relative lengths of the inner setae on exopods of legs 2-4, setation of the mandibular exopod, maxillular exopod, and distal endopod segment of leg 1, and sexually dimorphic features of the middle exopodal segment of leg 4 in the male. A comparative table for all known <i>Tetragoniceps</i> species, incorporating revised interpretations of several diagnostic characters including the armature formula for the distal exopodal segment of leg 4 in the female, is provided, together with an updated identification key. This study represents the first record of <i>Tetragoniceps</i> from the northwestern Pacific, substantially expanding the known geographic distribution of the genus.</p>","PeriodicalId":24051,"journal":{"name":"ZooKeys","volume":"1293 ","pages":"141-186"},"PeriodicalIF":1.5,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13639518/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149115684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Three new species of <i>Eucorydia</i> Hebard, 1929 (Blattodea, Corydioidea, Corydiidae) from China, with notes on female genitalia.","authors":"Ting-Ting Cai, Wei Han, Zong-Qing Wang, Yan-Li Che","doi":"10.3897/zookeys.1293.199475","DOIUrl":"10.3897/zookeys.1293.199475","url":null,"abstract":"<p><p>Three new species of <i>Eucorydia</i> from China are described using an integrative taxonomic approach combining morphology and <i>COI</i> sequences, with ASAP and GMYC methods: <i>Eucorydia parva</i> Cai & Che, <b>sp. nov</b>., <i>Eucorydia qinlingensis</i> Cai & Che, <b>sp. nov</b>., and <i>Eucorydia absens</i> Cai & Che, <b>sp. nov</b>. The female genitalia are illustrated and comparatively analyzed, demonstrating their taxonomic significance. Although genetic divergence between the zonata population of <i>E. dasytoides</i> and <i>E. qinlingensis</i> is low, phylogenetic analysis supports the distinctiveness of the three new species. A key to the Chinese species of <i>Eucorydia</i> is also provided.</p>","PeriodicalId":24051,"journal":{"name":"ZooKeys","volume":"1293 ","pages":"187-207"},"PeriodicalIF":1.5,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13639515/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149115781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"First larval description of <i>Nipponomyia</i> Alexander (Diptera, Pediciidae) with a new species from South Korea.","authors":"Sigitas Podenas, Virginija Podeniene, Jekaterina Havelka","doi":"10.3897/zookeys.1293.201884","DOIUrl":"https://doi.org/10.3897/zookeys.1293.201884","url":null,"abstract":"<p><p>This study presents the first description of the larval stage of the crane fly genus <i>Nipponomyia</i> Alexander, 1924 (Diptera: Pediciidae), based on material from South Korea. In addition, a new species, <i>Nipponomyia kalbongsanica</i> Podenas & Podeniene, <b>sp. nov</b>., is described, representing the first record of the genus from the Korean Peninsula. Detailed morphological descriptions of adults and larvae are provided, including diagnostic characters of the head capsule, mouthparts, spiracular field, and abdominal structures. The larva is shown to possess a combination of features typical of Pediciinae but also exhibits characters that distinguish <i>Nipponomyia</i> from related genera such as <i>Heterangaeus</i> and <i>Tricyphona</i>. Association of larval and adult stages was confirmed using mitochondrial COI DNA barcoding. Phylogenetic analysis supports this association but reveals incongruence between morphological classification and molecular relationships within the genus, as the new species groups morphologically with the <i>N. trispinosa</i> species group but clusters genetically closer to the <i>N. kuwanai</i> group. Ecological observations indicate that larvae develop in mud accumulated on stones beneath leaf litter in fast-flowing mountain streams. The study expands knowledge of the diversity, morphology, and biology of Pediciidae and highlights the importance of integrating morphological and molecular data in crane fly taxonomy.</p>","PeriodicalId":24051,"journal":{"name":"ZooKeys","volume":"1293 ","pages":"95-119"},"PeriodicalIF":1.5,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13635777/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149115666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A new species of <i>Bathyeliasona</i> (Annelida, Polynoidae) from the abyssal plain of the eastern Indian Ocean.","authors":"Cheah Hoay Chuar, Iffah Iesa, Tashfia Raquib","doi":"10.3897/zookeys.1293.208455","DOIUrl":"https://doi.org/10.3897/zookeys.1293.208455","url":null,"abstract":"<p><p>A new species of deep-sea polynoid, <i>Bathyeliasona oceanxplorer</i> <b>sp. nov</b>., is described from the abyssal plain located in international waters between Christmas Island and the Cocos (Keeling) Islands in the eastern Indian Ocean from a single specimen collected at a depth of 4977 m. The new species is characterised using morphology and molecular data from four genetic markers (COI, 16S rRNA, 18S rRNA, and 28S rRNA). <i>Bathyeliasona oceanxplorer</i> <b>sp. nov</b>. is distinguished from its congeners by a combination of characters, including the possession of 18 segments, slender frontal filaments, the presence of a buccal bulb, and ventral pygidial lobes with weakly undulate margins. This is the first species of <i>Bathyeliasona</i> for which the elytra are described and illustrated. This finding highlights the great value of ROV-based sampling for recovering comparatively intact deep-sea polynoid specimen with most delicate features preserved.</p>","PeriodicalId":24051,"journal":{"name":"ZooKeys","volume":"1293 ","pages":"121-140"},"PeriodicalIF":1.5,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13635780/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149115662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mitochondrial genome of <i>Scutiger boulengeri</i> (Anura, Megophryidae) reveals an exceptionally expanded non-coding region and its phylogenetic position within Megophryidae.","authors":"Wan-Ting Wang, Fu-Hao Zhang, Rui Wang, Xu-Ze Zhang","doi":"10.3897/zookeys.1293.203467","DOIUrl":"https://doi.org/10.3897/zookeys.1293.203467","url":null,"abstract":"<p><p><i>Scutiger boulengeri</i> is an amphibian distributed in high-altitude mountainous environments on the Qinghai-Xizang Plateau and its surrounding regions. However, its mitochondrial genomic characteristics and phylogenetic position remain to be further investigated. In this study, the complete mitochondrial genome of <i>S. boulengeri</i> was sequenced and assembled and a preliminary analysis conducted. The results revealed that the mitochondrial genome of <i>S. boulengeri</i> is 49,991 bp in length and comprises 13 protein-coding genes (PCGs), 22 tRNA genes, 2 rRNA genes, and an expanded non-coding region encompassing the putative mitochondrial control region. The overall organization is largely consistent with basic characteristics of vertebrate mitochondrial genomes. The overall A+T content of this mitochondrial genome is approximately 69.77%, indicating AT bias. The expanded non-coding region encompassing the putative control region reaches 22,418 bp in length, and large non-coding intergenic spacers were identified in the regions adjacent to <i>trnW</i>-<i>trnF</i> and <i>trnP</i>-<i>trnQ</i>. The Ka/Ks values of all 13 PCGs were lower than 1, suggesting that these protein-coding genes as a whole may be subject to purifying selection. Phylogenetic analyses based on <i>cytb</i> and concatenated sequences of the 13 PCGs revealed a close relationship between <i>S. boulengeri</i> and <i>Scutiger liupanensis</i>. Further analysis based on the 13 PCGs dataset suggested that these two species may form a sister group and, together with <i>Scutiger ningshanensis</i>, constitute a closely related clade. Divergence time estimation indicated that the divergence between <i>S. ningshanensis</i> and the clade comprising <i>S. boulengeri</i> and <i>S. liupanensis</i> occurred approximately 5.96 MYA, whereas the recent divergence between <i>S. boulengeri</i> and <i>S. liupanensis</i> occurred approximately 2.10 MYA. These divergence time estimates correspond to the timescale of regional environmental changes during the Pliocene/Pleistocene. In summary, the mitochondrial genome of <i>S. boulengeri</i> exhibits characteristics of structural expansion coexisting with functional conservation. This study provides complete mitochondrial genome data for the Tibetan spiny toad and offers fundamental molecular evidence for investigating molecular evolution and conservation genetics of amphibians in the southeastern Qinghai-Xizang Plateau region.</p>","PeriodicalId":24051,"journal":{"name":"ZooKeys","volume":"1293 ","pages":"17-44"},"PeriodicalIF":1.5,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13631551/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149115768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"<i>Trimma charon</i>, a new species of pygmygoby (Teleostei, Gobiidae) from the Red Sea with a key to the Red Sea species of the genus.","authors":"Viktor N Peinemann, Sergey V Bogorodsky, Matthew D Tietbohl Talas, Michael L Berumen","doi":"10.3897/zookeys.1293.204097","DOIUrl":"https://doi.org/10.3897/zookeys.1293.204097","url":null,"abstract":"<p><p><i>Trimma charon</i> <b>sp. nov</b>. is described based on two specimens collected at 30 m depth from the northern Red Sea, Saudi Arabia. The new species can be distinguished from its congeners by the following combination of characters: predorsal midline with scales; fifth pelvic-fin ray unbranched and 41-43% length of the fourth ray; cheek and opercle scaleless; 14 pectoral-fin rays, all unbranched; dorsal fins VI + I,8, with no elongate spines; anal-fin I,8; bony interorbital width 55-62% of pupil diameter; and 6 papillae in row c. In life, <i>T. charon</i> <b>sp. nov</b>. is translucent with a distinct, broad, orange-red midlateral stripe extending from the eye to the caudal-fin base and interrupted by three narrow pale bars, and with conspicuous golden spots on the caudal fin that extend onto the caudal peduncle; the iris is divided into four uneven white/orange sectors. The species is known from two specimens collected at the entrance of a cave on a steep outer-reef slope. <i>Trimma charon</i> <b>sp. nov</b>. was compared with congeners, especially with the very similar <i>T. anaima</i> and co-occurring Red Sea species. An illustrated dichotomous key to all <i>Trimma</i> currently known from the Red Sea is provided. With the description of <i>T. charon</i> <b>sp. nov</b>., the number of valid species in the Red Sea rises to 11.</p>","PeriodicalId":24051,"journal":{"name":"ZooKeys","volume":"1293 ","pages":"1-16"},"PeriodicalIF":1.5,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13631550/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149115623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"One new obligate commensal species of <i>Coenaletes</i> (Collembola, Coenaletidae) from the hermit crab <i>Coenobita compressus</i> (Crustacea, Coenobitidae) from Colombia.","authors":"Angela Arango, Margarita Ojeda, Francisco Serna, José G Palacios-Vargas","doi":"10.3897/zookeys.1293.206618","DOIUrl":"https://doi.org/10.3897/zookeys.1293.206618","url":null,"abstract":"<p><p>A new species of <i>Coenaletes</i> associated with the hermit crab <i>Coenobita compressus</i> H. Milne-Edwards, 1836, living in shells of <i>Tegula atra</i> Lesson, 1830 (Gastropoda: Tegulidae) on the seashores of Chocó, Colombia, is described and illustrated. The ontogenetic development, including measurements and ventral setation from first instar to adult, is provided. A key for the identification of the three species known in the genus is included.</p>","PeriodicalId":24051,"journal":{"name":"ZooKeys","volume":"1293 ","pages":"79-94"},"PeriodicalIF":1.5,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13631554/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149115739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Construction of a COI DNA barcode reference library for non-volant terrestrial mammals of Taiwan, with notes on the effects of nuclear mitochondrial pseudogenes (numts) on molecular identification.","authors":"Yen-Jean Chen, Yi-Lun Chiang, Meng-Jou Chi, Shih-Wei Chang, Nian-Hong Jang-Liaw","doi":"10.3897/zookeys.1293.190114","DOIUrl":"https://doi.org/10.3897/zookeys.1293.190114","url":null,"abstract":"<p><p>DNA barcoding using mitochondrial COI is widely applied for animal species identification, but its accuracy in mammals can be affected by uneven sampling, sequence artefacts, and nuclear mitochondrial pseudogenes (numts). In this study, we established a voucher-linked COI DNA barcode reference library for non-volant terrestrial mammals of Taiwan and evaluated its identification performance and potential limitations using the BOLD workbench, Barcode Index Number (BIN) assignments, barcode gap analyses, and comparisons with public sequence data. A total of 157 newly generated COI sequences were obtained, representing seven orders, 16 families, 37 genera and 48 species. Among the 48 sampled taxa, 15 (31.25%) had no COI barcode record available in BOLD before this study; therefore, the deposition of the present library increasing BOLD coverage for the sampled taxa from 68.8% to 100%. In the original BOLD project dataset, 145 of the 157 sequences were assigned to 49 BINs. To evaluate whether the observed barcode patterns were robust for broader sampling, 75 public Taiwanese mammalian COI sequences were incorporated into an expanded Taiwan dataset of 232 sequences. Barcode-gap and Neighbor-Joining analyses showed that 45 of the 48 taxa retained positive barcode gaps after public sequences were added, supporting the utility of COI barcodes for identifying most non-volant terrestrial mammals in Taiwan. Three taxa, <i>Mogera insularis</i>, <i>M. kanoana</i>, and <i>Petaurista grandis</i>, showed negative barcode gaps and/or split clustering patterns and were therefore highlighted for further investigation. In addition, all three newly generated <i>Rattus tanezumi</i> sequences were flagged as putative numts based on anomalous placement and full-length sequence inspection. Our results further emphasize the importance of integrating specimen traceability, functional sequence checks, comparisons with public data, distance-based analyses, and cautious interpretation of BIN results in mammalian DNA barcoding research.</p>","PeriodicalId":24051,"journal":{"name":"ZooKeys","volume":"1293 ","pages":"45-77"},"PeriodicalIF":1.5,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13631552/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149115671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Three species of Encyrtidae (Hymenoptera, Chalcidoidea) from Mongolia, with descriptions of two new species.","authors":"Boyu Zou, Huanji Liu, Byambasuren Mijidsuren, Yanzhou Zhang","doi":"10.3897/zookeys.1292.187191","DOIUrl":"https://doi.org/10.3897/zookeys.1292.187191","url":null,"abstract":"<p><p>Two species, <i>Trechnites bulgani</i> Zou & Zhang, <b>sp. nov</b>. and <i>Helegonatopus arkhangaiensis</i> Zou & Zhang, <b>sp. nov</b>. are described as new to science. <i>Psyllaephagus tamaricicola</i> Myartseva is recorded from Mongolia for the first time. A diagnosis or a description, figures of the characters, as well as the known distribution of each species, are provided.</p>","PeriodicalId":24051,"journal":{"name":"ZooKeys","volume":"1292 ","pages":"373-383"},"PeriodicalIF":1.5,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13628147/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149115649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"First records of the genera <i>Mariaplax</i> Rahayu & Ng, 2014 and <i>Hexapinus</i> Manning & Holthuis, 1981 from India, with descriptions of three new species (Crustacea, Decapoda, Brachyura, Hexapodidae).","authors":"Mani Prema, Sherine Sonia Cubelio, Peter K L Ng","doi":"10.3897/zookeys.1292.204005","DOIUrl":"https://doi.org/10.3897/zookeys.1292.204005","url":null,"abstract":"<p><p>Three new brachyuran crab species of Hexapodidae are described from the Arabian Sea and Bay of Bengal, based on material collected by FORV Sagar Sampada between 2015 and 2019, with the genera <i>Mariaplax</i> Rahayu & Ng, 2014, and <i>Hexapinus</i> Manning & Holthuis, 1981, reported from Indian waters for the first time. <i>Mariaplax kochazhi</i> <b>sp. nov</b>., and <i>M. albucus</i> <b>sp. nov</b>. were collected from the Arabian Sea at a depth 30 m while <i>Hexapinus clivus</i> <b>sp. nov</b>. was collected from the Bay of Bengal. <i>Mariaplax kochazhi</i> <b>sp. nov</b>. is most similar to <i>M. granulifera</i> (Campbell & Stephensen, 1970) from Australia but can be distinguished by its proportionately wider carapace with the surfaces possessing larger granules, the pterygostomial region smooth with 5-7 striae, a rectangular ischium and more granulated merus of the third maxilliped, a subpentagonal male pleon telson, and a strongly curved S-shaped male first gonopod with a rounded distal tip. <i>Mariaplax albucus</i> <b>sp. nov</b>. is similar to <i>M. sundaica</i> Rahayu & Widyastuti, 2018, from Java, but can easily be differentiated by a carapace that is as long as wide, a pterygostomial region that has 6 oblique striae, a relatively shorter and stouter P4 merus (4.0 times wider than long) and the distinctive structure of the vulva. In the latter species, the vulval operculum cover differs markedly from <i>M. kochazhi</i>, which is simple, rounded, and lacks a cover. <i>Hexapinus clivus</i> <b>sp. nov</b>. is morphologically close to the widely distributed <i>H. simplex</i> Rahayu & Ng, 2014, from the West Pacific, but it can easily be differentiated by the weaker granulation on the carapace surface; possession of a relatively shorter and stouter P4 merus (2.5 times as long as wide); a proportionately wider male thoracic sternum, with the fused sternites 1 and 2 being subtriangular and the lateral margins gently sloping; and the semilunate vulva elevated and protruded, and positioned adjacent to the suture between sternites 5 and 6.</p>","PeriodicalId":24051,"journal":{"name":"ZooKeys","volume":"1292 ","pages":"349-372"},"PeriodicalIF":1.5,"publicationDate":"2026-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13628174/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149115620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}