基于形态学和分子证据，对2006年坂井、图尔凯和杨所描述的来自西太平洋的三种拟相手蟹属（甲壳纲：短尾次目：方蟹科）物种进行鉴定。

The identities of three species of Parahelice Sakai, Türkay amp; Yang, 2006 (Crustacea: Brachyura: Varunidae) from the western Pacific, based on morphological and molecular evidence.

作者信息

Shih Hsi-Te, Hsu Jhih-Wei, Li Jheng-Jhang, Ng Ngan Kee, Lee Jung-Hsiang

机构信息

Department of Life Science, National Chung Hsing University, Taichung 402, Taiwan Research Center for Global Change Biology, National Chung Hsing University, Taichung 402, Taiwan.

出版信息

Zootaxa. 2020 Jan 22;4728(2):zootaxa.4728.2.6. doi: 10.11646/zootaxa.4728.2.6.

DOI:10.11646/zootaxa.4728.2.6

PMID:32230576

Abstract

Species of the varunid genus Parahelice Sakai, Türkay Yang, 2006, inhabit high intertidal areas of oceanic islands of the tropical Indo-West Pacific region. As several species of Parahelice and Pseudohelice subquadrata (Dana, 1851) were found to be sympatric in some places, and their morphological differences are minor, especially in females, the misidentification of species is not uncommon in the literature. In this study, the DNA barcoding marker, mitochondrial cytochrome c oxidase subunit I (COI), was applied to confirm species identities and this was correlated with the specific characters of males and females. Distributions of three species of Parahelice were also updated, with Par. daviei (Sakai, Türkay Yang, 2006), Par. pilimana (A. Milne-Edwards, 1873), and Par. pilosa (Sakai, Türkay Yang, 2006) being new records to Taiwan, and Par. pilosa new to Bali, Indonesia.

摘要

仿相手蟹属（Parahelice Sakai, Türkay & Yang, 2006）的物种栖息于热带印度-西太平洋地区海洋岛屿的高潮间带区域。由于在某些地方发现几种仿相手蟹属物种与四角伪相手蟹（Pseudohelice subquadrata (Dana, 1851)）同域分布，且它们的形态差异较小，尤其是雌性，因此在文献中物种误认的情况并不少见。在本研究中，应用DNA条形码标记——线粒体细胞色素c氧化酶亚基I（COI）来确认物种身份，并将其与雄性和雌性的特定特征相关联。还更新了三种仿相手蟹属物种的分布情况，其中戴氏仿相手蟹（Par. daviei (Sakai, Türkay & Yang, 2006)）、毛手仿相手蟹（Par. pilimana (A. Milne-Edwards, 1873)）和多毛仿相手蟹（Par. pilosa (Sakai, Türkay & Yang, 2006)）为台湾新记录物种，多毛仿相手蟹为印度尼西亚巴厘岛新记录物种。