2018年发现的来自中国广东的四种新淡水蟹物种（甲壳纲，十足目，溪蟹科），隶属于黄、施和阿永蟹属。

Four new freshwater crab species of the genus Huang, Shih & Ahyong, 2018 (Crustacea, Decapoda, Potamidae) from Guangdong, China.

作者信息

Huang Chao, Shih Hsi-Te, Ahyong Shane T

机构信息

Australian Museum, 1 William St, Sydney NSW 2010, Australia Australian Museum Sydney Australia.

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

出版信息

Zookeys. 2025 Jul 2;1244:1-27. doi: 10.3897/zookeys.1244.148112. eCollection 2025.

DOI:10.3897/zookeys.1244.148112

PMID:40654598

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12242232/

Abstract

Four new species of the poorly known genus Huang, Shih & Ahyong, 2018, are described from Guangdong Province, China: from Huizhou City, from Yangjiang City, and both and from Maoming City. These four new species are all morphologically and genetically distinct from each other and the two known congeners Huang, Shih & Ahyong, 2018 and Huang & Mao, 2021. The extremely divergent morphology of the gonopod 1 of these species alone immediately sets them apart, but there are also distinct differences in other characters, including the carapace, ambulatory leg, and maxilliped 3 exopod flagellum. A phylogeny constructed using the mitochondrial 16S rDNA reveals that all species of form a deep-rooted monophyletic group with significant interspecific genetic distances, supporting the generic placement and specific treatments of these new taxa. A key to the species of is also provided.

摘要

2018年，黄、施和阿永描述了一个鲜为人知的属，本文从中国广东省描述了该属的四个新物种：一个来自惠州市，一个来自阳江市，另外两个均来自茂名市。这四个新物种在形态和基因上均彼此不同，且与2018年的黄、施和阿永以及2021年的黄和毛所描述的两个已知同属物种也不同。仅这些物种第一性附肢的极端不同形态就立即将它们区分开来，但在其他特征上也存在明显差异，包括头胸甲、步足和第三颚足外肢鞭节。利用线粒体16S rDNA构建的系统发育树表明，该属的所有物种形成了一个具有显著种间遗传距离的基部深的单系类群，支持了这些新分类单元的属级定位和物种处理。文中还提供了该属物种的检索表。