Zoological Studies

Vol. 59, 2020

(update: 2020.05.22; 07.06)

A New Genus and Two New Species of Freshwater Crab (Crustacea: Brachyura: Potamidae) with Unusual Coiled Tip of Male Second Gonopods from Yunnan, Southwestern China

Chao Huang1,2, Jian Wang3, and Hsi-Te Shih4,*


1School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China. E-mail: chaohuang1777@gmail.com (Huang)
2Australian Museum, 1 William St, Sydney NSW 2010, Australia
3College of Life Science and Technology, Honghe University, Mengzi, Yunnan 661199, China. E-mail: cuora.jian@gmail.com (Wang)
4Department of Life Science, National Chung Hsing University, 250, Kuo Kuang Road, Taichung 402, Taiwan. *Correspondence: E-mail: htshih@dragon.nchu.edu.tw (Shih)

(Received 28 March 2020 / Accepted 13 May 2020)
Communicated by Benny K.K. Chan

Two new species of a new genus, Tortomon puer n. gen. n. sp. and T. gejiu n. gen. n. sp. are described from southern Yunnan, southwestern China, based on the morphology and mitochondrial 16S rDNA sequences. The new genus resembles Tenuipotamon Dai, 1990 and Parvuspotamon Dai & Bo, 1994, but can be separated by characters of the male thoracic sternum, male pleon, male first gonopod, and
especially the coiled tip of the male second gonopod. The latter character easily separates Tortomon n. gen. from known potamid genera. Notes on the general biology of the two new species are also included.

Key words: Freshwater crabs, Yunnan, Tortomon n. gen., New species, Potamidae, Systematics, Morphology, Mitochondrial 16S rDNA.

Citation: Huang C, Wang J, Shih HT. 2020. A new genus and two new species of freshwater crab (Crustacea: Brachyura: Potamidae) with unusual coiled tip of male second gonopods from Yunnan, southwestern China. Zool Stud 59:24. doi:10.6620/ZS.2020-59-24.

Erratum: Erratum notice | Figure 9

Supplementary Materials: Supplementary Material