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

By

Luo, Xueming
Yang, Ruigang
Du, Li-Na
Luo, Fu-Guang

Type

Article

Date of Publication

2024

Original Publication

ZooKeys

Volume

1196

Pages

285--301

Subjects

Morphology , new species , Phylogeny , taxonomy , Xijiang River

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/zookeys.1196.109810

 

Abstract

A new loach species, Oreonectes andongensissp. 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. andongensissp. nov. (uncorrected p-distance 6.0–7.5%).