Two new species of freshwater crabs of the genus Bottapotamon Trkay & Dai, 1997 (Decapoda: Brachyura: Potamidae) from China

We report on two new species of Bottapotamon: B. lushanensesp. nov. from Lushan Mountain, Jiujiang City, Jiangxi Province and B. yongzhouensesp. nov. from Ningyuan County, Yongzhou City, Hunan Province, China. The two new species are morphologically compared with the other eight congeners, and can be distinguished by characters of the carapace and the male first gonopods. A phylogenetic tree was produced based on sequences of partial COX1. The establishment of the two new species was supported by both the results of the molecular analyses and the morphological descriptions,. This study brings the number of Bottapotamon species to ten.