| Main Ref. | Ng, H.K. and M. Kottelat, 2026 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral (shape guide) | elongated |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
This species is distinguished from its congeners by the following set of characters: nasal barbels reaching at least to the anterior orbital margin; head width 16.8%-18.3% SL; head depth 11.6%-12.6% SL; lateral line without short branches visible; length of adipose-fin base 11.6%-13.8% SL; caudal peduncle depth 2.0-2.2 times in body depth at dorsal-fin origin; and a uniformly almost black body (Ref. 138879). |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | |
| Pored lateral line scales | |
| Scales in lateral series | |
| Scale rows above lateral line | |
| Scale rows below lateral line | |
| Scales around caudal peduncle | |
| Barbels | |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | |
| on upper limb | |
| total | |
| Vertebrae | |
| preanal | |
| total |
| Attributes | |
| Fins number | 1 |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | 1 - 1 |
| Soft-rays total | 6 - 6 |
| Adipose fin | present |
| Attributes |
| Fins number | 1 |
| Spines total | |
| Soft-rays total | 9 - 10 |
| Pectoral | Attributes |
| Spines 1 | |
| Soft-rays 8 - 10 | |
| Pelvics | Attributes |
| Position | |
| Spines | |
| Soft-rays 5 - 5 |