日本中部单生殖器Cybaeus L. Koch, 1868(蜘蛛目，cybaedae)一新种是2006年长生殖器Cybaeus melanoparvus Kobayashi的姊妹种

IF 1.6 2区生物学 Q2 ZOOLOGY

Zoosystematics and Evolution Pub Date : 2021-04-07 DOI:10.3897/ZSE.97.64473

Y. Sugawara, Y. Ihara, T. Nakano

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引用次数: 5

摘要

Cybaeus L. Koch蜘蛛属，1868年，展示了两个主要的多样性中心:北美西部和日本。一些日本Cybaeus在雄性触须上有一个细长的栓子，在雌性生殖器上有一个细长的管状精囊。在这里，我们描述了来自日本本州中部的Cybaeus koikei sp. 11 .，它有一个未拉长的栓子和球根状的精子。核和线粒体基因标记的系统发育分析清楚地支持C. koikei sp. 11 .和Cybaeus melanoparvus Kobayashi, 2006，一个长生殖器物种的单系性。这两个物种都有相似的习性和雄掌髌骨外侧表面的一簇健壮的刚毛。后者被认为是C. koikei sp. 11 .和C. melanoparvus的突触形态。本文还提供了对黑斑鱼精囊的补充描述。

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A new species of Cybaeus L. Koch, 1868 (Araneae, Cybaeidae) with simple genitalia from central Japan is the sister species of C. melanoparvus Kobayashi, 2006 with elongated genitalia

Spiders of the genus Cybaeus L. Koch, 1868 exhibit two major centers of diversity: Western North America and Japan. Several Japanese Cybaeus possess an elongated embolus in the male palp and elongated tubular spermathecae in the female genitalia. Here we describe Cybaeus koikei sp. nov. from central Honshu, Japan, which has an unelongated embolus and bulbous spermathecae. Phylogenetic analyses using nuclear and mitochondrial gene markers clearly support the monophyly of C. koikei sp. nov. and Cybaeus melanoparvus Kobayashi, 2006, a species with elongated genitalia. Both species share a similar habitus and a cluster of robust setae on the lateral surface of the male palpal patella. The latter is considered a synapomorphy for C. koikei sp. nov. and C. melanoparvus. A supplementary description of the spermathecae of C. melanoparvus is also provided.

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来源期刊

Zoosystematics and Evolution ZOOLOGY-

CiteScore

3.50

自引率

5.00%

发文量

审稿时长

16 weeks

期刊介绍： Zoosystematics and Evolution, formerly Mitteilungen aus dem Museum für Naturkunde in Berlin, is an international, open access, peer-reviewed life science journal devoted to whole-organism biology. It publishes original research and review articles in the field of Metazoan taxonomy, biosystematics, evolution, morphology, development and biogeography at all taxonomic levels. The journal''s scope encompasses primary information from collection-related research, taxonomic descriptions and discoveries, revisions, annotated type catalogues, aspects of the history of science, and contributions on new methods and principles of systematics. Articles whose main topic is ecology, functional anatomy, physiology, or ethology are only acceptable when of systematic or evolutionary relevance and perspective.