Unveiling the identity of Diaurora Cockerell, 1903 (Bivalvia, Unionidae): morphology, molecular phylogenetics, and the description of a new species

The monotypic freshwater mussel genus Diaurora Cockerell, 1903 has long been enigmatic due to its rarity and morphological confusion with Acuticosta . In this study, we comprehensively redescribed Diaurora aurorea (Heude, 1883) through a detailed analysis of shell morphology and molecular phylogenet...

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Bibliographic Details
Published inZooKeys Vol. 1173; no. 13–14; pp. 131 - 144
Main Authors Chen, Zhong-Guang, Dai, Yu-Ting, Ouyang, Shan, Huang, Xiao-Chen, Wu, Xiao-Ping
Format Journal Article
LanguageEnglish
Published Bulgaria Pensoft Publishers 03.08.2023
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ISSN1313-2989
1313-2970
1313-2970
DOI10.3897/zookeys.1173.106148

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Summary:The monotypic freshwater mussel genus Diaurora Cockerell, 1903 has long been enigmatic due to its rarity and morphological confusion with Acuticosta . In this study, we comprehensively redescribed Diaurora aurorea (Heude, 1883) through a detailed analysis of shell morphology and molecular phylogenetics of recently collected specimens. Moreover, a new species, Diaurora laeve sp. nov. , was identified from the Fuyishui River, a tributary of the Zishui River in Shaoyang County, Shaoyang City, Hunan Province, China. Molecular phylogenetic analyses showed that D. aurorea and D. laeve sp. nov. were reciprocally monophyletic and formed a clade as sister to Schistodesmus . Our study underscores the necessity of further exploring the diversity of freshwater mussels in understudied small tributaries throughout China.
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Academic editor: Graham Oliver
ISSN:1313-2989
1313-2970
1313-2970
DOI:10.3897/zookeys.1173.106148