| Main Ref. | Kottelat, M., 1998 |
| 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 | |
| Type of scales | |
| Diagnosis |
Differs from its congeners in Vietnam by the following combination of characters: caudal fin with 9+8 branched rays, median incision in upper lip; lateral line complete; body with 7-13 bars, usually well contrasted; pelvic fin situated below unbranched dorsal-fin rays or in front of dorsal-fin origin; median caudal-fin ray 75.4-86.8% of length of upper caudal-fin lobe; caudal peduncle 1.3-1.6 times longer than deep (Ref. 40772). Anterior nostril found on the front side of a flap-like tube (Ref. 27732). Caudal peduncle length 5.3-6.2 times in SL, depth 7.3-8.8 times in SL; eye continuous with dorsal head profile or slightly protruding (Ref. 43281). |
| Ease of Identification |
| Lateral Lines | Interrupted: No |
| Scales on lateral line | |
| Pored lateral line scales | 80 - 89 |
| 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 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 0 - 0 |
| Soft-rays total | 12 - 12 |
| Adipose fin | absent |
| Attributes | forked; more or less normal |
| Fins number | 1 |
| Spines total | 0 - 0 |
| Soft-rays total | 8 - 8 |
| Pectoral | Attributes more or less normal |
| Spines 0 | |
| Soft-rays 11 - 11 | |
| Pelvics | Attributes more or less normal |
| Position abdominal beneath origin of D1 | |
| Spines 0 | |
| Soft-rays 8 - 8 |