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Zhou J-J et al 2024 (1)

Description: Dorsal spines (total): 1; Dorsal soft rays (total): 7; Anal soft rays: 20 - 23. Differs from all congeners with a similar caudal-fin shape (truncate or slightly emarginate) by the following unique combination of characters: supraoccipital plate and nuchal plate broadly interspaced and covered with skin; nasal barbels only at most reaching anterior margin of eye; maxillary barbels reaching slightly beyond posterior margin of eye; outer mandibular barbels reaching posterior margin of eye; dorsal fin with a slightly convex distal margin, origin nearer to pectoral-fin insertion than to pelvic-fin insertion; dorsal-fin spine shorter than pectoral spine, with a slightly serrated posterior margin; pectoral-fin spine with a smooth anterior margin; anal fin with 20-23 rays, base length 23.8-32.0% SL, posterior end of anal-fin base anterior to posterior end of adipose fin base; no longitudinal black band extending along flank; eyes large, diameter 16.3-23.7% HL; and vertebrae 5 + 43-46. Etymology: The genus name of Tachysurus: tachys, swift; oura, tail, referring to the presumed agility of T. sinensis based on its “long and nimble” tail (translation). The specific name of brachyrhabdion: brachýs, short; rhabdíon, barbel, referring to shorter maxillary barbel compared to other congeners with a truncate or slightly emarginated caudal fin. Remarks: Still valid in some publications as Pseudobagrus brachyrhabdion but Eschmeyer's Catalog of Fishes has Tachysurus as the current genus name with Pseudobagrus brachyrhabdion as a junior synonym.

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Bagridae

Asia: Yuan Jiang, Oushui He and Xiang Jiang of the middle Yantze River drainage in China.

20.5cm (8ins)

16-23°C (59-75°F)

6.5-7.5.

Cheng, J.-L., H. Ishihara and E. Zhang, 2008. Pseudobagrus brachyrhabdion, a new catfish (Teleostei: Bagridae) from the middle Yangtze River drainage, South China. Ichthol. Res. 55:112-123.
Ferraris, C.J. Jr. 2007 Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types. Zootaxa 1418:1-628.
Froese, R. and D. Pauly. Editors. 2024. FishBase. World Wide Web electronic publication. www.fishbase.org, ( 02/2024 ).
Fish in the News 2024.
Zhou J-J, Yuan L-Y, Shao W-H (2024) Tachysurus wuyueensis (Teleostei, Bagridae), a new species of catfish from the Qiantang-Jiang basin, southeast China. Zoosystematics and Evolution 100(2): 583-595.