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Tachysurus gracilis (Li, Chen & Chan, 2005) |
| Family: | Bagridae (Bagrid catfishes) | |||
| Max. size: | 17.307 cm SL (male/unsexed) | |||
| Environment: | demersal; freshwater | |||
| Distribution: | Asia: China. | |||
| Diagnosis: | Dorsal spines (total): 2-2; Dorsal soft rays (total): 7-7; Anal soft rays: 17-21; Vertebrae: 47-48. Closely resembles Pseudobagrus adiposalis and P. ussuriensis, but differs in having a large elliptical eye (19.8-24.4% HL), a short maxillary barbel not reaching the posterior margin of the eye, a lightly serrated posterior edge on the second dorsal spine, a caudal fin slightly emarginate with upper lobe slightly longer than lower lobe, frontal concave with a smooth surface, and supraoccipital process short (far from the first basal bone of the dorsal spine) (Ref. 56712). | |||
| Biology: | Inhabits medium to large rivers in lowland areas with rocky substrate and moderate or far current (Ref. 56712). | |||
| IUCN Red List Status: | Least Concern (LC); Date assessed: 02 November 2022 Ref. (130435) | |||
| Threat to humans: | harmless | |||