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A taxonomic revision of the freshwater crab genus Parvuspotamon Dai & Bo, 1994 (Decapoda, Brachyura, Potamidae), with descriptions of a new genus and two new species

descriptionPublicationkeyboard_double_arrow_right Article , Other literature type 26 Oct 2023Publisher:Pensoft PublishersJournal:ZooKeys, volume 1,183, pages 13-38 (issn: 1313-2989, eissn: 1313-2970,

Authors: Boyang Shi; Da Pan; Hongying Sun;

doi: 10.3897/zookeys.1183.109948

pmid: 38059261

pmc: PMC10696613

A taxonomic revision of the freshwater crab genus Parvuspotamon Dai & Bo, 1994 (Decapoda, Brachyura, Potamidae), with descriptions of a new genus and two new species

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Abstract

The taxonomy of the potamid crab genus Parvuspotamon Dai & Bo, 1994, with two species native to Yunnan province of southwest China, is revised based on morphological and molecular data. In order to stabilise the taxonomy of these species (and the genus), two separate genera are hereby designated: Parvuspotamon and Songpotamongen. nov. While Parvuspotamon is restricted to P. yuxiense Dai & Bo, 1994, as a monotypic genus, P. dixuense Naruse, Chia & Zhou, 2018, is transferred to a new genus, Songpotamongen. nov. In addition, two new species of Songpotamongen. nov. are described herein: S. funingensesp. nov. and S. malipoensesp. nov.Songpotamongen. nov. morphologically most resembles Parvuspotamon and Chinapotamon Dai & Naiyanetr, 1994, but can be distinguished by the combination of characters in the carapace, third maxilliped, thoracic sternites, and male first gonopod. The genetic data derived from the mitochondrial 16S rDNA also supports the monophyly of these new taxa.

Related Organizations

Nanjing Normal University
China (People's Republic of)

Keywords

China, Arthropoda, Potamoidea, new combination, Brachyura, Yunnan, Eubrachyura, Biota, Potamiscinae, Pleocyemata, Parvuspotamon, taxonomy, QL1-991, Decapoda, Potamidae, Crustacea, Heterotremata, Animalia, Malacostraca, Zoology, Research Article

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