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首页> 外文期刊>Zoological Science >A New Species of Osedax (Annelida: Siboglinidae) Associated with Whale Carcasses off Kyushu, Japan
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A New Species of Osedax (Annelida: Siboglinidae) Associated with Whale Carcasses off Kyushu, Japan

机译:日本九州附近鲸鱼尸体相关的Osedax的新物种(Annelida:Siboglinidae)

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摘要

A new whale-bone-eating polychaete species of the genus Osedax was found on sperm whale carcasses submerged off Cape Nomamisaki, Kyushu, Japan, at a depth of approximately 200 m. The new species, Osedax japonicus, is the fourth known species of the genus Osedax and the first species from the western Pacific. Female O. japonicus specimens (1) form dense clusters on whale carcasses; (2) have a body composed of crown, trunk, and root structure; (3) lack a digestive tract; and (4) have bacterium-like particles in the tissue of the root structure. Osedax japonicus shares all these characteristics with O. rubiplumus and O. frankpressi, and items (1) to (3) with O. mucofloris. Osedax japonicus is easily distinguished from the other three known species by oviduct morphology, body length, and palp coloration in females. No males of O. japonicus have yet been found.
机译:在日本九州野马崎岬附近淹没的抹香鲸尸体中,在约200 m的深度发现了一种新的Osedax食鲸骨骼多毛cha属。该新物种是日本滨鱼(Osedax japonicus),是该物种的第四个已知物种,也是西太平洋的第一个物种。雌性日本粳稻标本(1)在鲸鱼尸体上形成密集的簇; (2)具有由冠,躯干和根部结构组成的主体; (3)没有消化道; (4)在根结构的组织中具有细菌样颗粒。日本骨吸血鬼(Osedax japonicus)与红叶迷迭香(O. rubiplumus)和弗兰克斯乳杆菌(O. frankpressi)具有所有这些特征,黏液曲霉(O. mucofloris)具有第(1)至(3)项。通过雌虫的输卵管形态,体长和手掌着色,可以很容易地将日本松毛鱼与其他三个已知种区分开。尚未发现日本粳稻的雄性。

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