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A new species ofOrobdella (Hirudinida, Arhynchobdellida, Gastrostomobdellidae) and redescription ofOrobdella kawakatsuorum from Hokkaido, Japan with the phylogenetic position of the new species

机译:一种新的Orobdella(Hirudinida,Arhynchobdellida,Gastrostomobdellidae)和重新命名来自日本北海道的Orobdella kawakatsuorum,具有该新物种的系统发生地位

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摘要

A new quadrannulate Orobdella Oka, 1895 species, Orobdella koikei sp. n., is described on the basis of six specimens collected from Hokkaido, Japan. In addition, an emended description of quadrannulate Orobdella kawakatsuorum Richardson, 1975 is also provided. Orobdella koikei differs from other quadrannulate species of Orobdella in possessing the following combination of characters: color dorsally brown, IV uniannulate, male gonopore at XI b6, gastropore and female gonopore at XIII a1, 1/2 + 4 + 1/2 between gonopores, XXV triannulate, tubular but bulbous at junctions with gastropore and crop gastroporal duct, epididymides in XVII to XIX, and atrial cornua ovate. The phylogenetic position of the newly described species is estimated using mitochondrial COI, tRNACys, tRNAMet, 12S rDNA, tRNAVal and 16S rDNA markers. Orobdella koikei is a sister taxon of Orobdella kakawatsuorum according to the molecular phylogenetic analyses.
机译:一种新的四角形Orobdella Oka,1895种,Orobdella koikei sp。 n。是根据从日本北海道收集的六个标本进行描述的。此外,还提供了对1975年川崎Orobdella kawakatsuorum Richardson的改进描述。小ike鱼与其他四翅species鱼不同,它们具有以下特征的组合:背棕色,IV单正色,XI b6处的雄性淋巴孔,XIII a1处的胃和雌性淋巴孔,淋巴孔之间的1/2 + 4 + 1/2, XXV三角状,管状,但在与胃孔和农作物胃管的交界处呈管状,在十七至十九的附睾中以及心房卵形。使用线粒体COI,tRNA Cys ,tRNA Met ,12S rDNA,tRNA Val 和16S rDNA标记估算新描述物种的系统发育位置。根据分子系统发育分析,小鸟Orobdella koikei是karobatsuorum的姊妹分类。

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