Vol. 59, 2020

(update: 2020.04.22; 05.25)
 

The Taiwanese and Philippine Species of the Terrestrial Crabs Bresedium Serène and Soh, 1970 and Sesarmops Serène and Soh, 1970 (Crustacea: Decapoda: Brachyura), with Descriptions of Two New Species

Jheng-Jhang Li^1,2, Hsi-Te Shih^3,*, and Peter K. L. Ng⁴

¹Department of Marine Biotechnology and Resources, National Sun Yat-sen University, 70, Lianhai Road., Kaohsiung 80424, Taiwan
²East Peak Ecological Consultants, Inc., 22, Wanggong Road., Linyuan Dist., Kaohsiung 83249, Taiwan
³Department of Life Science and Research Center for Global Change Biology, National Chung Hsing University, 250, Kuo Kuang Road, Taichung 402, Taiwan. *Correspondence: E-mail: htshih@dragon.nchu.edu.tw
⁴Lee Kong Chian Natural History Museum, National University of Singapore, 2 Conservatory Drive, Singapore 117377, Republic of Singapore

(Received 7 January 2020 / Accepted 21 April 2020)
Communicated by Benny K.K. Chan

The genera Bresedium Serène and Soh, 1970 and Sesarmops Serène and Soh, 1970 are two closely related taxa inhabiting terrestrial or freshwater environments from the Indo-West Pacific. Based on morphological and molecular evidence, two new species from Taiwan, the Philippines and Indonesia are described in this study, viz. B. eurypleon n. sp. and S. mora n. sp. The new species can be distinguished from congeners by a suite of carapace, chelipedal, gonopodal and vulvar characters. Bresedium philippinense (Rathbun, 1914) is here shown to be a junior synonym of B. brevipes (De Man, 1889). A poorly known Philippine species, Sesarmops mindanaoensis (Rathbun, 1914), is redescribed from the type and fresh material, and is recorded for the first time from Taiwan.

Key words: Taxonomy, New species, Bresedium eurypleon, B. philippinense, Sesarmops mora, S. mindanaoensis, Morphology, Mitochondrial 16S rDNA, Cytochrome oxidase subunit I.

Citation: Li JJ, Shih HT, Ng PKL. 2020. The Taiwanese and Philippine species of the terrestrial crabs Bresedium Serène and Soh, 1970 and Sesarmops Serène and Soh, 1970 (Crustacea: Decapoda: Brachyura), with descriptions of two new species. Zool Stud 59:16. doi:10.6620/ZS.2020.59-16.