| Main Ref. | Ng, H.H., 1999 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | elongated |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | sub-terminal/inferior |
| Type of scales | |
| Diagnosis |
Snout with a steep ventral profile (ventral angle of snout 20°-26°), relatively more anal-fin rays (98-108), and smaller eyes (eye diameter 10.7% - 14.0% HL) that are set further apart (interorbital distance 35.4 - 40.9% HL). Mature males have membranous extensions on only the anterior edge of the maxillary barbel. |
| 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 | 12 - 13 |
| Vertebrae | |
| preanal | |
| total | 62 - 65 |
| Attributes | |
| Fins number | |
| Finlets No. | Dorsal |
| Ventral | |
| Spines total | |
| Soft-rays total | |
| Adipose fin |
| Attributes | forked; more or less normal |
| Fins number | |
| Spines total | |
| Soft-rays total | 98 - 108 |
| Pectoral | Attributes |
| Spines 1 | |
| Soft-rays 14 - 16 | |
| Pelvics | Attributes |
| Position | |
| Spines | |
| Soft-rays 8 - 8 |