{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,7]],"date-time":"2026-10-07T05:50:06Z","timestamp":1791352206918,"version":"4.3.1"},"reference-count":32,"publisher":"Zoological Society of Japan","issue":"6","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Zoological Science"],"published-print":{"date-parts":[[2026,10,9]]},"abstract":"<jats:p>A new troglobitic dipluran species of the campodeid genus Pacificampa Chevrizov, 1978, P. dodecas sp. nov., collected from four caves in Akiyoshidai district, Yamaguchi Prefecture, Japan, is described. This new species is clearly distinguishable from other congeners by the following characteristics: body size, macrosetae distribution on the mesonotum and tergite, and the ratio of the antenna length to the body length. Additionally, partial sequences of the mitochondrial cytochrome c oxidase subunit I gene extracted from specimens collected from the four caves support the con-specificity of the populations, which form a lineage distinct from those of other Japanese Pacificampa species. Although the phylogenetic position of Pacificampa remains unclear, the present phylogeny based on the 18S rRNA gene indicates a close relationship between Pacificampa and the campodeid genus Metriocampa Silvestri, 1911. Furthermore, the present molecular phylogeny suggests the non-monophyly of the subfamily Campodeinae.<\/jats:p>","DOI":"10.2108\/zs260018","type":"journal-article","created":{"date-parts":[[2026,10,7]],"date-time":"2026-10-07T04:52:41Z","timestamp":1791348761000},"source":"Crossref","is-referenced-by-count":0,"title":["A New Species of Pacificampa (Diplura: Campodeidae) from Akiyoshidai, Honshu Island, Japan, and the Phylogenetic Position of the Genus"],"prefix":"10.2108","volume":"43","author":[{"given":"Tomoyuki","family":"Yokogawa","sequence":"first","affiliation":[{"name":"Faculty of Science, Kyoto University, Kitashirakawa-oiwakecho, Sakyo, Kyoto 606-8502, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takashi","family":"Murakami","sequence":"additional","affiliation":[{"name":"Tourism Promotion Division, Mine City Government, Akiyoshi, Shihocho, Mine, Yamaguchi 754-0511, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takafumi","family":"Nakano","sequence":"additional","affiliation":[{"name":"Department of Zoology, Graduate School of Science, Kyoto University, Kitashirakawa-oiwakecho, Sakyo, Kyoto 606-8502, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"848","reference":[{"key":"17","doi-asserted-by":"crossref","unstructured":"YX Luan, JM Mallatt, RD Xie, et al.  \"Mol Biol Evol.\"  22, \"The phylogenetic positions of three basal-hexapod groups (Protura, Diplura, and Collembola) based on ribosomal RNA gene sequences.\" 1579 (2005)","DOI":"10.1093\/molbev\/msi148"},{"key":"1","unstructured":"RT Allen,  \"Trans Am Entomol Soc.\"  128, \"A synopsis of the Diplura of North America: keys to higher taxa, systematics, distributions and descriptions of new taxa (Arthropoda: Insecta).\" 403 (2002)"},{"key":"2","doi-asserted-by":"crossref","unstructured":"C Bareth  and B Cond\u00e9  \"Rev Suisse Zool.\"  88, \"Nouveaux campod\u00e9id\u00e9s de grottes d'Espagne.\" 775 (1981)","DOI":"10.5962\/bhl.part.82407"},{"key":"3","doi-asserted-by":"crossref","unstructured":"WJ Chen, M Koch, JM Mallatt, et al.  \"Genome Biol Evol.\"  6, \"Comparative analysis of mitochondrial genomes in Diplura (Hexapoda, Arthropoda): taxon sampling is crucial for phylogenetic inferences.\" 105 (2014)","DOI":"10.1093\/gbe\/evt207"},{"key":"4","doi-asserted-by":"crossref","unstructured":"O Chernomor, AV Haeseler, BQ Minh,  \"Syst Biol.\"  65, \"Terrace aware data structure for phylogenomic inference from supermatrices.\" 997 (2016)","DOI":"10.1093\/sysbio\/syw037"},{"key":"5","unstructured":"BP Chevrizov,  \"Zool Zh.\"  57, \"Two new genera of the family Campodeidae from the Far East Caves.\" 197 (1978)"},{"key":"6","unstructured":"B Cond\u00e9,  \"Ann Transvaal Mus.\"  12, \"Campodeides du Natal.\" 69 (1951)"},{"key":"7","unstructured":"B Cond\u00e9,  \"M\u00e9m Mus Natl Hist nat S\u00e9r A Zool.\"  12, \"Mat\u00e9riaux pour une monographie des diploures campod\u00e9id\u00e9s.\" 1 (1956)"},{"key":"8","unstructured":"LM Ferguson,  \"Proceedings of the 12th International Congress of Speleology La Chaux-de-Fonds.\"  3, \"A report on a new species of Pacificampa (Diplura: Campodeidae) from a cave in China and a comparison of some North America genera to Pacificampa and Plutocampa previously only known from the Far East of Russia.\" 315 (1997)"},{"key":"11","unstructured":"J Ishikawa,  \"Bull Kochi Women's Coll.\"  5, \"The limestone caves and their faunae on Akiyoshi Plateau, Yamaguchi Prefecture.\" 31 (1957)"},{"key":"12","doi-asserted-by":"crossref","unstructured":"S Kalyaanamoorthy, BQ Minh, TKF Wong, et al.  \"Nat Method.\"  14, \"ModelFinder: fast model selection for accurate phylogenetic estimates.\" 587 (2017)","DOI":"10.1038\/nmeth.4285"},{"key":"14","unstructured":"T Komatsu,  \"Riku no shinkai seibutsu: Nihon no chika ni sumu ikimono [Deep-sea organisms of the land: Creatures living underground in Japan].\"  (2023)"},{"key":"15","unstructured":"T Kuramoto  and H Nakamura  \"Takaga-ana Limestone Cave Akiyoshi Plateau, Western Japan.\"  \"The fauna of Takaga-ana Cave.\" 139 (1981)"},{"key":"16","doi-asserted-by":"crossref","unstructured":"YX Luan, YG Yao, RD Xie, et al.  \"Pedobiologia.\"  48, \"Analysis of 18S rRNA gene of Octostigma sinensis (Projapygoidea: Octostigmatidae) supports the monophyly of Diplura.\" 453 (2004)","DOI":"10.1016\/j.pedobi.2004.06.005"},{"key":"20","unstructured":"J Paclt,  \"Diplura. 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