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

被引:27
作者
Huang, Chao [1 ,2 ,3 ]
Shih, Hsi-Te [4 ,5 ]
Ng, Peter K. L. [6 ]
机构
[1] UNSW, Palaeontol Geobiol & Earth Arch Res Ctr, Sch Biol Earth & Environm Sci, Kensington, NSW 2052, Australia
[2] Australian Museum, 6 Coll St, Sydney, NSW 2010, Australia
[3] Sun Yat Sen Univ, Sch Life Sci, Guangzhou 510275, Guangdong, Peoples R China
[4] Natl Chung Hsing Univ, Dept Life Sci, Taichung 402, Taiwan
[5] Natl Chung Hsing Univ, Res Ctr Global Change Biol, Taichung 402, Taiwan
[6] Natl Univ Singapore, Lee Kong Chian Nat Hist Museum, Fac Sci, Singapore 119260, Singapore
关键词
Diyutamon cereum; new genus; new species; caves; stygobite; 16S rDNA; FRESH-WATER CRABS; MOLECULAR EVIDENCE; BOTT; SULAWESI;
D O I
10.11646/zootaxa.4232.1.5
中图分类号
Q95 [动物学];
学科分类号
071002 ;
摘要
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.
引用
收藏
页码:71 / 84
页数:14
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