基于拓扑类型的空Torix重新描述

IF 0.5 4区生物学 Q3 Agricultural and Biological Sciences

Proceedings of the Biological Society of Washington Pub Date : 2020-08-11 DOI:10.2988/20-00003

Chiaki Kambayashi, A. Kurabayashi, T. Nakano

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引用次数: 2

摘要

摘要根据从其模式产地日本本州筑波山采集的新标本，重新描述了一种鲜为人知的长鼻水蛭物种，Torix tukubana（Oka，1935），其中体节背侧为双核，腹侧为三角形。该重新描述首次提供了杜库巴纳的内部消化和生殖器官。我们的观察表明，该物种拥有大小相等的第1至第6对未分化的作物盲肠和沿着腹神经索运行的管状卵囊。此外，使用核18S rRNA、线粒体细胞色素c氧化酶亚基I、12S rRNA，tRNALeu和NADH脱氢酶亚基1标记进行的系统发育分析表明，图库巴纳T.tukubana与Paleopolic Hemiclepsis Vejdovský（1884）密切相关，其中中体节为三角形。

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Topotype-based redescription of the leech Torix tukubana (Hirudinida: Glossiphoniiformes: Glossiphoniidae)

Abstract. A poorly-known proboscidate leech species, Torix tukubana (Oka, 1935), in which the mid-body somites are biannulate dorsally and triannulate ventrally, is redescribed based on new specimens collected from its type locality, Mt. Tsukubasan in Honshu, Japan. The redescription provides the internal digestive and genital organs of T. tukubana for the first time. Our observation reveals that this species possesses equal-sized 1st–6th pairs of crop ceca that are nondiverticulated and tubular ovisacs running alongside the ventral nerve cord. Additionally, phylogenetic analyses using nuclear 18S rRNA, mitochondrial cytochrome c oxidase subunit I, 12S rRNA, tRNALeu, and NADH dehydrogenase subunit 1 markers reveal that T. tukubana is closely related to the Palearctic Hemiclepsis Vejdovský, 1884, in which the mid-body somites are triannulate.

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来源期刊

Proceedings of the Biological Society of Washington 生物-生物学

自引率

0.00%

发文量

审稿时长

>12 weeks

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.