来自越南北部的蒂瓦溪蟹属（Tiwaripotamon Bott，1970）一新种，并对越南蒂瓦溪蟹（Tiwaripotamon vietnamicum (Dang & Ho, 2002)）和伊氏蒂瓦溪蟹（Tiwaripotamon edostilus Ng & Yeo, 2001）作了说明（甲壳纲，短尾亚目，溪蟹科）

A new species of Tiwaripotamon Bott, 1970, from northern Vietnam, with notes on T. vietnamicum (Dang & Ho, 2002) and T. edostilus Ng & Yeo, 2001 (Crustacea, Brachyura, Potamidae).

作者信息

Shih Hsi-Te, Do Van Tu

机构信息

Department of Life Science, National Chung Hsing University, 250, Kuo Kuang Road, Taichung 402, Taiwan; Email:

Institute of Ecology and Biological Resources (IEBR), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Ha Noi, Vietnam; Email: unknown.

出版信息

Zootaxa. 2014 Feb 7;3764:26-38. doi: 10.11646/zootaxa.3764.1.2.

DOI:10.11646/zootaxa.3764.1.2

PMID:24870278

Abstract

A new species of potamid freshwater crab, Tiwaripotamon vixuyenense sp. nov., is described from caves in Ha Giang, northern Vietnam. The new species can be distinguished from congeners by a suite of characters, including the relatively small epibranchial tooth, more slender ambulatory legs and a proportionately stout male first gonopod. Molecular data using the mitochondrial cytochrome oxidase subunit I (COI) supports its placement as a new species. The molecular data also supports the inclusion of another species, Geothelphusa vietnamica Dang & Ho, 2002, from Ninh Binh, south of Hanoi, Vietnam in Tiwaripotamon Bott, 1970. The live coloration of T. vietnamicum and T. edostilus Ng & Yeo, 2001 is provided to help field identification.

摘要

一种新的束腹蟹属淡水蟹——越南梯黎蟹（Tiwaripotamon vixuyenense sp. nov.），是在越南北部河江省的洞穴中发现并描述的。该新物种可通过一系列特征与同属其他物种相区分，包括相对较小的鳃上齿、更细长的步足以及比例上较粗壮的雄性第一腹肢。利用线粒体细胞色素氧化酶亚基I（COI）的分子数据支持将其认定为一个新物种。分子数据还支持将越南宁平省（位于河内以南）的另一个物种——越南地蟹（Geothelphusa vietnamica Dang & Ho，2002）归入1970年命名的梯黎蟹属（Tiwaripotamon Bott）。文中给出了越南地蟹和2001年命名的伊氏梯黎蟹（Tiwaripotamon edostilus Ng & Yeo）的活体颜色，以帮助进行野外鉴别。