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On a new species of freshwater crab of the genus Mekhongthelphusa Naiyanetr, 1994 (Decapoda: Brachyura: Gecarcinucidae) from south Yunnan, China

Abstract

A new gecarcinucid freshwater crab, Mekhongthelphusa menglongensis sp. nov., is described from Menglong Town, Jinghong City, Xishuangbanna Dai Autonomous Prefecture, Yunnan Province, China. This is the first report of the mainly Indochinese genus Mekhongthelphusa Naiyanetr, 1994, in China. The new species can be distinguished morphologically from the other four nominal species in this genus by its carapace and male first gonopod. The mitochondrial 16S sequences of this new species are provided and the phylogenetic position of the genus is discussed.

Keywords
16S rDNA; Indochina; morphology; taxonomy; Xishuangbanna

Sociedade Brasileira de Carcinologia Instituto de Biociências, UNESP, Campus Botucatu, Rua Professor Doutor Antônio Celso Wagner Zanin, 250 , Botucatu, SP, 18618-689 - Botucatu - SP - Brazil
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