Zoological Studies

Vol. 56, 2017

(update: 2017.12.11; 12.20)

Cantopotamon, A New Genus of Freshwater Crabs from Guangdong, China, with Descriptions of Four New Species (Crustacea: Decapoda: Brachyura: Potamidae)

Chao Huang1,2,3, Shane T. Ahyong1,2, and Hsi-Te Shih4,*

1Palaeontology, Geobiology and Earth Archives Research Centre, School of Biological, Earth and Environmental Sciences, UNSW, Kensington, NSW 2052, Australia
2Australian Museum, 1 William St, Sydney NSW 2010, Australia
3School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
4Department of Life Science and Research Center for Global Change Biology, National Chung Hsing University, 250, Kuo Kuang Road, Taichung 40227, Taiwan

(Received 25 September 2017; Accepted 7 December 2017; Published 20 December 2017; Communicated by Benny K.K. Chan)

Chao Huang, Shane T. Ahyong, and Hsi-Te Shih (2017) A new genus and four new species of freshwater crab, Cantopotamon zhuhaiense n. gen., n. sp., C. shangchuanense n. gen., n. sp., C. hengqinense n. gen., n. sp. and C. yangxiense n. gen., n. sp. are described from Guangdong, China, based on morphology and two mitochondrial markers (16S rDNA and cytochrome oxidase subunit I). Species of Cantopotamon closely resemble species of Yarepotamon Dai & Türkay, 1997, but differ by the combination of carapace, third maxilliped, male pleon, male first gonopod and female vulva characters. Molecular data derived from the mitochondrial 16S rDNA also supports the establishment of the new genus.

Key Words: Potamidae, Cantopotamon, New genus, New species, Freshwater crab, Morphology, 16S rDNA, Cytochrome oxidase subunit I.

Correspondence: Tel/Fax: 886-4-22856496. E-mail: htshih@dragon.nchu.edu.tw