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Issue: Vol. 5787 No. 3: 8 Apr. 2026
Type: Article
Published: 2026-04-08
DOI: 10.11646/zootaxa.5787.3.5
Page range: 501-514
Abstract views: 87
PDF downloaded: 7

Discogobio acutusirostris, a new species of cyprinids (Teleostei: Cypriniformes) from the middle Chang-Jiang basin in Guizhou Province, China

Institute of Hydrobiology; Chinese Academy of Sciences; Wuhan 430072; Hubei Province; China; Hubei Key Laboratory of Environment and Culture in Yangtze Regions; The Changjiang Civilization Museum (Wuhan Natural History Museum); Wuhan 430010; Hubei Province; China
Wuhan Landscape Construction Development Company Limited; Wuhan 430022; Hubei Province; China
Institute of Hydrobiology; Chinese Academy of Sciences; Wuhan 430072; Hubei Province; China
Pisces Taxonomy fish new taxa morphology sequence divergence

Abstract

Discogobio acutusirostris, a new species, is here described from the Yuanjiang River of the middle Chang-Jiang basin in Guizhou Province, Southwest China. It can be assigned to the species group of Discogobio diagnosed by having a large mental adhesive disc with its edge margin extending to or beyond the vertical through the anterior edge of eye and a snout covered with small tubercles. The new species is separated from all other species of this group by having many rows of dark brown spots along scale rows on the flank, an unscaled region of the abdomen adjacent to the ventral mid-line restricted only to the bases of pectoral fins, a shorter snout, a stout caudal peduncle and shorter pectoral fins. The validity of D. acutusirostris is also corroborated in a phylogenetic analysis based on the cytochrome b gene. A lectotype is here designated for D. brachyphysallidos.

 

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How to Cite

Deng, S.-Q., Deng, C. & Zhang, E. (2026) Discogobio acutusirostris, a new species of cyprinids (Teleostei: Cypriniformes) from the middle Chang-Jiang basin in Guizhou Province, China. Zootaxa, 5787 (3), 501–514. https://doi.org/10.11646/zootaxa.5787.3.5