Two new potamid crabs, Yuexipotamon arcophallus new genus, new speciesland Minutomon shanweiense new genus, new species,(Crustacea: Decapoda: Brachyura: Potamidae) from southern China

摘要

Two new Chinese genera and species of freshwater crabs, Yuexipotamon arcophallus, new genus, new species, and Minu-tmon shanweiense, new genus, new species, are described from Zhaoqing City and Shanwei City, respectively. The for-mer is superficiallyclosest to Huananpotamon Dai & Ng, 1994, while the latter resembles Sinopotamon Bott, 1967, and Vediapotamon Dai, 1995. The two new genera, however, possess distinctive combinations of carapace, third maxilliped, male thoracic sternal and first gonopodalcharacters that easily distinguish them from other genera. Notes on the general biology of the two new species are also given.