Traccatichthys punctulatus sp. nov., a new species of stone loach (Pisces, Nemacheilidae) from Guangxi, southern China

Traccatichthys punctulatus is here described from the Liu-Jiang flowing into the Xi-Jiang of the Pearl River basin at Jinxiu County, Guangxi Zhuang Autonomous Region, southern China. It is distinguished from all congeners by having a unique body coloration of a series of brown spots along the latera...

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Bibliographic Details
Main Authors: Zhi-Xian Qin, Jia-Jun Zhou, Li-Na Du, Feng Lin
Format: Article
Language:English
Published: Pensoft Publishers 2025-06-01
Series:Zoosystematics and Evolution
Online Access:https://zse.pensoft.net/article/146077/download/pdf/
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Summary:Traccatichthys punctulatus is here described from the Liu-Jiang flowing into the Xi-Jiang of the Pearl River basin at Jinxiu County, Guangxi Zhuang Autonomous Region, southern China. It is distinguished from all congeners by having a unique body coloration of a series of brown spots along the lateral line and dorsal-fin. Other diagnostic characters, not unique to this new species, are caudal-fin and lateral body colorations, and absence of pectoral-fin tuberculation. Its validity is further confirmed by its monophyly recovered in a molecular phylogenetic analysis based on mitochondrial COI and Cyt b gene sequences and species-level divergence between the new species and its closest relatives.
ISSN:1860-0743