SCOTCAT.COM  

Chen et al 2024 (1)

Abstract: A new species of Liobagrus is unearthed in the Nan-Jiang flowing into the Jialing-Jiang of the upper Chang-Jiang basin in which currently recognised Chinese congeners have a concentrated distribution. This small-sized (less than 100.0 mm LS ) torrent fish belongs to the species group defined by the presence of a smooth posterior edge of the pectoral-fin spine and upper and lower jaws of equal length or a lower jaw slightly longer than the upper jaw in length. It is distinct from Liobagrus aequilabris and Liobagrus formosanus by the presence of a pectoral-fin spine extending short of (vs. beyond) the vertical through the dorsal-fin origin, maxillary barbels reaching the middle of the pectoral fin (vs. pectoral-fin insertion or slightly beyond), 17-19 anal-fin rays (vs. 15-16 in L. formosanus), 39-41 (vs. 35-37 in L. aequilabris) post-Weberian vertebrae and the pectoral-fin spine length 3.6%-7.4% of LS (vs. 7.6-10.5 in L. aequilabris). It differs from Liobagrus marginatoides by the presence of upper and lower jaws of equal length (vs. a lower jaw slightly longer than the upper jaw in length) and a rounded or unevenly rounded (vs. subtruncate) caudal fin. The validity of the new species is confirmed by its monophyly recovered in a cytochrome b gene-based phylogenetic analysis and its significant genetic distance with sampled congeneric species (Xie RX, Cao L, Zhang E. 2022). Etymology: brevis (L.), short; spina (L.), thorn, referring to its pectoral-fin spine, shorter than dorsal fin, not reaching vertical line of dorsal-fin origin.

None

None

Amblycipitidae

East Asia: Jialing-Jiang drainage, upper Yangtze River basin, China.

8.5cm (3¼ins)

18-22°C (63-71°F)

6.5-7.5.

Chen Z-G, Guo Y-S, Dai Y-T, Huang X-C, Huang J-H, Jiang J, Ouyang S, Wen A-X, Wu X-P (2024) A new species of Liobagrus Hilgendorf, 1878 (Teleostei, Siluriformes, Amblycipitidae) from the lower Changjiang River basin in southeast China. Zoosystematics and Evolution 100(2): 555-563.
Fish in the News 2024.
Froese, R. and D. Pauly. Editors. 2024. FishBase. World Wide Web electronic publication. www.fishbase.org, ( 02/2024 ).
The ETYFish Project Fish Name Etymology Database © Christopher Scharpf.
Xie RX, Cao L, Zhang E. Liobagrus brevispina, a new species of torrent catfish (Siluriformes: Amblycipitidae) from the upper Chang-Jiang basin, South China. J Fish Biol. 2022.