一种新的溪蟹属及新物种（甲壳纲：十足目：短尾亚目：溪蟹科），这是中国及东亚已知的首个洞穴隐态蟹类。

A new genus and new species of Potamidea (Crustacea: Decapoda: Brachyura: Potamoidae), the first stygomorphic cave crab known from China and East Asia.

作者信息

Huang Chao, Shih Hsi-Te, Ng Peter K L

机构信息

Palaeontology, Geobiology and Earth Archives Research Centre, School of Biological, Earth and Environmental Sciences, UNSW, Kensington, NSW 2052, Australia Australian Museum, 6 College Street, Sydney, NSW 2010, Australia School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China.

出版信息

Zootaxa. 2017 Feb 15;4232(1):zootaxa.4232.1.5. doi: 10.11646/zootaxa.4232.1.5.

DOI:10.11646/zootaxa.4232.1.5

PMID:28264380

Abstract

A new genus and species of freshwater crab, Diyutamon cereum n. gen., n. sp., is described from a cave in Guizhou, China. This is the first record of a true stygomorphic crab from China and East Asia, possessing pale body coloration, strongly reduced eyes, and long ambulatory legs. While superficially similar to Chinapotamon Dai & Naiyanetr, 1994, and Tiwaripotamon Bott, 1970, the new genus possesses a diagnostic combination of carapace, ambulatory leg, thoracic sternal, and male abdominal characters that easily distinguishes it from other genera. Molecular data derived from the mitochondrial 16S rDNA supports the establishment of the new genus.

摘要

一种淡水蟹的新属新种——蜡质地穴蟹（Diyutamon cereum），在中国贵州的一个洞穴中被发现并被描述。这是中国和东亚首次记录到的真正的洞穴型蟹类，其身体颜色浅淡，眼睛极度退化，步足很长。虽然该新属在外观上与1994年发现的中国溪蟹属（Chinapotamon Dai & Naiyanetr）及1970年发现的蒂瓦里溪蟹属（Tiwaripotamon Bott）相似，但它具有独特的头胸甲、步足、胸腹板及雄性腹部特征组合，这使其很容易与其他属区分开来。来自线粒体16S rDNA的分子数据支持了该新属的建立。