The systematic position of Cryptopotamon anacoluthon (Kemp, 1918), with the description of a new species of Sinolapotamon Tai & Sung, 1975 (Crustacea, Decapoda, Brachyura, Potamidae) from southern China

Authors: Lu, Yuanbiao Country: People's Republic of China DOI: 10.3897/zookeys.1166.101737 Published: Jan. 1, 2023 Source: ZooKeys OpenAlex: View in OpenAlex

Collection: Pensoft Publishers

Keywords: Freshwater crabs · Topics: Crustacean biology and ecology, Marine Biology and Ecology Research, Aquatic Invertebrate Ecology and Behavior

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The systematics of the potamid freshwater crab Cryptopotamon anacoluthon (Kemp, 1918) is clarified, and its generic position in Sinolapotamon Tai & Sung, 1975, is confirmed based on morphological comparisons, geographical information and phylogenetic analyses. A new species of Sinolapotamon, Sinolapotamon cirratum sp. nov. is described from the Guangxi Zhuang Autonomous Region of China. Sinolapotamon cirratum sp. nov. is distinguished from its congeners by the combination of characters of its carapace, third maxilliped, anterolateral margin, and unique male first gonopod. Phylogenetic analyses based on partial COX1, 16S rRNA and 28S rRNA genes also support the species as new.

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