{"title":"日本卡利虫属一新种(甲壳纲:两栖纲:卡利虫科)","authors":"Ryuma Shimoji, T. Nakano, K. Tomikawa","doi":"10.2988/20-00001","DOIUrl":null,"url":null,"abstract":"Abstract. A new species of calliopiid amphipod, Calliopius ezoensis, from the eastern coasts of Hokkaido, Japan, is described and named. Calliopius ezoensis is similar to the North Atlantic C. sablensis Bousfield & Hendrycks, 1997, but can be discriminated from it in possessing two rows of calceoli on the peduncular articles of antennae 1 and 2 of the female, having a mandibular palp of article 3 longer than article 2, and setation of epimeral plate 3 on the ventral submargin. The new species is distinguished from North Pacific congeners by a combination of characteristics: in having dorsally smooth pereonites, the number of marginal and submarginal setal rows on epimeral plate 2, setation of palp article 2 of maxilla 1, indistinct sexually dimorphic gnathopods 1 and 2, and the length ratio of the inner and outer rami of uropod 2. In addition to previously provided DNA sequences of nuclear histone H3 and mitochondrial 16S rRNA genes, nuclear 28S rRNA and mitochondrial cytochrome c oxidase subunit I sequences of this new species are provided for the future comparative purposes.","PeriodicalId":54578,"journal":{"name":"Proceedings of the Biological Society of Washington","volume":null,"pages":null},"PeriodicalIF":0.5000,"publicationDate":"2020-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A new species of Calliopius (Crustacea: Amphipoda: Calliopiidae) from Japan\",\"authors\":\"Ryuma Shimoji, T. Nakano, K. Tomikawa\",\"doi\":\"10.2988/20-00001\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Abstract. A new species of calliopiid amphipod, Calliopius ezoensis, from the eastern coasts of Hokkaido, Japan, is described and named. Calliopius ezoensis is similar to the North Atlantic C. sablensis Bousfield & Hendrycks, 1997, but can be discriminated from it in possessing two rows of calceoli on the peduncular articles of antennae 1 and 2 of the female, having a mandibular palp of article 3 longer than article 2, and setation of epimeral plate 3 on the ventral submargin. The new species is distinguished from North Pacific congeners by a combination of characteristics: in having dorsally smooth pereonites, the number of marginal and submarginal setal rows on epimeral plate 2, setation of palp article 2 of maxilla 1, indistinct sexually dimorphic gnathopods 1 and 2, and the length ratio of the inner and outer rami of uropod 2. In addition to previously provided DNA sequences of nuclear histone H3 and mitochondrial 16S rRNA genes, nuclear 28S rRNA and mitochondrial cytochrome c oxidase subunit I sequences of this new species are provided for the future comparative purposes.\",\"PeriodicalId\":54578,\"journal\":{\"name\":\"Proceedings of the Biological Society of Washington\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.5000,\"publicationDate\":\"2020-04-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of the Biological Society of Washington\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://doi.org/10.2988/20-00001\",\"RegionNum\":4,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"Agricultural and Biological Sciences\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the Biological Society of Washington","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.2988/20-00001","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Agricultural and Biological Sciences","Score":null,"Total":0}
A new species of Calliopius (Crustacea: Amphipoda: Calliopiidae) from Japan
Abstract. A new species of calliopiid amphipod, Calliopius ezoensis, from the eastern coasts of Hokkaido, Japan, is described and named. Calliopius ezoensis is similar to the North Atlantic C. sablensis Bousfield & Hendrycks, 1997, but can be discriminated from it in possessing two rows of calceoli on the peduncular articles of antennae 1 and 2 of the female, having a mandibular palp of article 3 longer than article 2, and setation of epimeral plate 3 on the ventral submargin. The new species is distinguished from North Pacific congeners by a combination of characteristics: in having dorsally smooth pereonites, the number of marginal and submarginal setal rows on epimeral plate 2, setation of palp article 2 of maxilla 1, indistinct sexually dimorphic gnathopods 1 and 2, and the length ratio of the inner and outer rami of uropod 2. In addition to previously provided DNA sequences of nuclear histone H3 and mitochondrial 16S rRNA genes, nuclear 28S rRNA and mitochondrial cytochrome c oxidase subunit I sequences of this new species are provided for the future comparative purposes.
期刊介绍:
The official publication of the Biological Society of Washington, the Proceedings of the Biological Society of Washington is an international journal containing peer-reviewed papers that broadly bear on systematics in the biological sciences (botany and zoology), paleontology, and notices of business transacted at Society meetings.