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Issue: Vol. 5543 No. 3: 4 Dec. 2024
Type: Article
Published: 2024-12-04
DOI: 10.11646/zootaxa.5543.3.6
Page range: 404-422
Abstract views: 239
PDF downloaded: 11

Revision of the loach genus Claea Kottelat, 2010 (Teleostei: Nemacheilidae) in China, with a description of a new species from the Chang-Jiang basin

Institute of Hydrobiology; Chinese Academy of Sciences; Wuhan 430072; Hubei Province; P.R. China; Shanghai Universities Key Laboratory of Marine Animal Taxonomy and Evolution; Shanghai Ocean University; Shanghai 201306; P.R. China
Hubei Provincial Academy of Eco-environmental Sciences; Wuhan 430072; Hubei Province; P. R. China
Hubei Provincial Academy of Eco-environmental Sciences; Wuhan 430072; Hubei Province; P. R. China
Institute of Hydrobiology; Chinese Academy of Sciences; Wuhan 430072; Hubei Province; P.R. China
Pisces Taxonomy generic defintion morphology molecular data new taxon

Abstract

A taxonomic revision of the nemacheilid genus Claea from China is provided based on molecular and morphological data. Three species are identified in this genus: C. dabryi (type species), C. wulongensis (a species originally recognized in Triplophysa), and C. minibarba sp. nov., here described from the mid-upper Chang-Jiang basin in northwestern Hubei Province, South China. This new species differs from the two congeneric species in having a deeper body, further from C. dabryi in having shorter outer rostral and maxillary barbels, and further from C. wulongensis in possessing a higher count of vertebrae, a deeper caudal-peduncle, and a narrower interorbital space. Its validity is corroborated by its monophyly recovered in a mitochondrial cytochrome b gene-based phylogenetic analysis and its significant genetic divergence of this gene with the two congeneric species.

 

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