A new loach species of the genus Oreonectes (Teleostei, Cypriniformes, Nemacheilidae) from Guangxi, China

Authors: Luo, Xueming Country: People's Republic of China DOI: 10.3897/zookeys.1196.109810 Published: Jan. 1, 2024 Source: ZooKeys OpenAlex: View in OpenAlex

Collection: Pensoft Publishers

Keywords: New species · Topics: Fish Biology and Ecology Studies, Identification and Quantification in Food, Genetic diversity and population structure

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A new loach species, Oreonectes andongensis sp. nov. is described from the Guangxi Zhuang Autonomous Region, China. The new species can be differentiated from other members of the genus by combinations of characters: a developed posterior chamber of the swim bladder, 13–14 branched caudal-fin rays, 8–16 lateral-line pores, body width 12–15% of standard length (SL), interorbital width 42–47% of head length (HL), and caudal peduncle length 11–16% of SL. Bayesian inference phylogenetic analysis based on mitochondrial Cyt b provided strong support for validity of O. andongensis sp. nov. (uncorrected p-distance 6.0–7.5%).

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